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#1
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Noise problem please help.
Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is
awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#2
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Noise problem please help.
Have your HU looked at. Everything you've done has eliminated everything in
the signal chain except the HU. I had the same problem a number of years ago and it ended up being a burnt trace in the HU. I don't know how it happened because the HU worked fine when I removed it, but when I put it back in there it was! Had it fixed and all was good. If you have another HU try it out. You could also run rca's from a friends car and see what happens. If you do that make sure both cars are running. Paul Vina "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#3
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Noise problem please help.
I tried running RCA's from my other vehicle. It has an Alpine IVA-C800 and
I just unhooked the rca's from the brain of the Alpine and ran cables from my amps of the noise car into the Alpine. Noise is still there. Now, I am really confused. Where do I go from here. I consider myself pretty knowledgable about car audio and this has me toasted. Thanks your any help you can give me Paul. "Paul Vina" wrote in message . net... Have your HU looked at. Everything you've done has eliminated everything in the signal chain except the HU. I had the same problem a number of years ago and it ended up being a burnt trace in the HU. I don't know how it happened because the HU worked fine when I removed it, but when I put it back in there it was! Had it fixed and all was good. If you have another HU try it out. You could also run rca's from a friends car and see what happens. If you do that make sure both cars are running. Paul Vina "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#4
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Noise problem please help.
Sounds like something is up with the headunit. Do yo uhave a walkman or
portable CD player? Hook that up to your existing RCA cables, if noise goes away its the head thats picking up noise. Garrett dconder wrote: Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#5
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Noise problem please help.
Try another set of rca's. You didn't say if you used the original set when
you ran them outside the car or from the other car. If you have a broken solder joint on the end it could cause this problem. Paul Vina "dconder" wrote in message ... I tried running RCA's from my other vehicle. It has an Alpine IVA-C800 and I just unhooked the rca's from the brain of the Alpine and ran cables from my amps of the noise car into the Alpine. Noise is still there. Now, I am really confused. Where do I go from here. I consider myself pretty knowledgable about car audio and this has me toasted. Thanks your any help you can give me Paul. "Paul Vina" wrote in message . net... Have your HU looked at. Everything you've done has eliminated everything in the signal chain except the HU. I had the same problem a number of years ago and it ended up being a burnt trace in the HU. I don't know how it happened because the HU worked fine when I removed it, but when I put it back in there it was! Had it fixed and all was good. If you have another HU try it out. You could also run rca's from a friends car and see what happens. If you do that make sure both cars are running. Paul Vina "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#6
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Noise problem please help.
I used a different set. They are not great but, it was all I had to reach
between the two vehicles. I might try tomorrow night to go the opposite. Run from my Eclipse(in the noisy car) to my other vehicle amps and see what it does. Anything else you can think of let me know. "Paul Vina" wrote in message news:NALdb.625290$o%2.288468@sccrnsc02... Try another set of rca's. You didn't say if you used the original set when you ran them outside the car or from the other car. If you have a broken solder joint on the end it could cause this problem. Paul Vina "dconder" wrote in message ... I tried running RCA's from my other vehicle. It has an Alpine IVA-C800 and I just unhooked the rca's from the brain of the Alpine and ran cables from my amps of the noise car into the Alpine. Noise is still there. Now, I am really confused. Where do I go from here. I consider myself pretty knowledgable about car audio and this has me toasted. Thanks your any help you can give me Paul. "Paul Vina" wrote in message . net... Have your HU looked at. Everything you've done has eliminated everything in the signal chain except the HU. I had the same problem a number of years ago and it ended up being a burnt trace in the HU. I don't know how it happened because the HU worked fine when I removed it, but when I put it back in there it was! Had it fixed and all was good. If you have another HU try it out. You could also run rca's from a friends car and see what happens. If you do that make sure both cars are running. Paul Vina "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#7
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Noise problem please help.
From what you've said you've done it has to be a problem before the amps.
Let me know what happens after you run your HU to the other car. Paul Vina "dconder" wrote in message ... I used a different set. They are not great but, it was all I had to reach between the two vehicles. I might try tomorrow night to go the opposite. Run from my Eclipse(in the noisy car) to my other vehicle amps and see what it does. Anything else you can think of let me know. "Paul Vina" wrote in message news:NALdb.625290$o%2.288468@sccrnsc02... Try another set of rca's. You didn't say if you used the original set when you ran them outside the car or from the other car. If you have a broken solder joint on the end it could cause this problem. Paul Vina "dconder" wrote in message ... I tried running RCA's from my other vehicle. It has an Alpine IVA-C800 and I just unhooked the rca's from the brain of the Alpine and ran cables from my amps of the noise car into the Alpine. Noise is still there. Now, I am really confused. Where do I go from here. I consider myself pretty knowledgable about car audio and this has me toasted. Thanks your any help you can give me Paul. "Paul Vina" wrote in message . net... Have your HU looked at. Everything you've done has eliminated everything in the signal chain except the HU. I had the same problem a number of years ago and it ended up being a burnt trace in the HU. I don't know how it happened because the HU worked fine when I removed it, but when I put it back in there it was! Had it fixed and all was good. If you have another HU try it out. You could also run rca's from a friends car and see what happens. If you do that make sure both cars are running. Paul Vina "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#8
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Noise problem please help.
Sounds like the head unit is defective. Something wrong in the pre-amp
circuit is causing an oscillation at the output stage. Have you tried running signal into the amp using another source (i.e. patch a portable CD player into it)? -- Ge0 ******************************************* TeamAMP #4 - tech whiz type of guy ******************************************* Low cost car stereo equipment repair/ modification Contact me for advice or a quote. Always interested in buying dead equipment too. ******************************************** Looking for answers on car stereo topics? www.mobileaudio.com www.teamrocs.com http://go.to/bcae/ ******************************************* Geo uses: Main Stage = a/d/s/ 336is.2 Rear fill = a/d/s/ 335is.2 Subs = Audiomobile Mass 2012 S24 Head unit = Alpine DVA-7996 Processor = Alpine PXA-H700 Sub Amp = a/d/s/ P4100.2 Main & rear fill amp = a/d/s/ P840.2 ******************************************** www.microheat.com ******************************************** "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#9
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Noise problem please help.
I was able to try a couple of things this morning and here is what I have
now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
#10
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Noise problem please help.
See my replies to Paul. He is on the same track as you.
"sanitarium" wrote in message ... Sounds like something is up with the headunit. Do yo uhave a walkman or portable CD player? Hook that up to your existing RCA cables, if noise goes away its the head thats picking up noise. Garrett dconder wrote: Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#11
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Noise problem please help.
See my replies to Paul. He is on the same track. Thanks.
"Ge0" wrote in message s.com... Sounds like the head unit is defective. Something wrong in the pre-amp circuit is causing an oscillation at the output stage. Have you tried running signal into the amp using another source (i.e. patch a portable CD player into it)? -- Ge0 ******************************************* TeamAMP #4 - tech whiz type of guy ******************************************* Low cost car stereo equipment repair/ modification Contact me for advice or a quote. Always interested in buying dead equipment too. ******************************************** Looking for answers on car stereo topics? www.mobileaudio.com www.teamrocs.com http://go.to/bcae/ ******************************************* Geo uses: Main Stage = a/d/s/ 336is.2 Rear fill = a/d/s/ 335is.2 Subs = Audiomobile Mass 2012 S24 Head unit = Alpine DVA-7996 Processor = Alpine PXA-H700 Sub Amp = a/d/s/ P4100.2 Main & rear fill amp = a/d/s/ P840.2 ******************************************** www.microheat.com ******************************************** "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#12
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Noise problem please help.
Where are your gains set? Did you follow the JL guidelines? They may be up
too high. I'm thinking it's a HU problem or you may have your rcas routed close to a device that is radiating noise into your rcas. Paul Vina "dconder" wrote in message ... I was able to try a couple of things this morning and here is what I have now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
#13
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Noise problem please help.
Right now, they are down about to the bottom. I do use a test cd when I set
the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. wrote in message news:1zYdb.634049$o%2.291299@sccrnsc02... Where are your gains set? Did you follow the JL guidelines? They may be up too high. I'm thinking it's a HU problem or you may have your rcas routed close to a device that is radiating noise into your rcas. Paul Vina "dconder" wrote in message ... I was able to try a couple of things this morning and here is what I have now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
#14
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Noise problem please help.
Well, I just took the car to my local installer. Great guy. I do all my
own installs but, he did a great custom enclosure for one of my vehicles. Plus, I help him out from time to time with material from my machine shop. Anyway, he said that it did not sound like induced noise and thought it was not in the RCA's. He said either something wrong in the Eclipse or maybe some noise from the power leads of the head. Any thoughts?? "Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. wrote in message news:1zYdb.634049$o%2.291299@sccrnsc02... Where are your gains set? Did you follow the JL guidelines? They may be up too high. I'm thinking it's a HU problem or you may have your rcas routed close to a device that is radiating noise into your rcas. Paul Vina "dconder" wrote in message ... I was able to try a couple of things this morning and here is what I have now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
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Noise problem please help.
I had an old Alpine HU (7618) that had outputs that went bad that had the
same symptoms you're having, could be that. Might be time to have a tech look at your HU. Paul Vina "Douglas Conder" wrote in message ink.net... Well, I just took the car to my local installer. Great guy. I do all my own installs but, he did a great custom enclosure for one of my vehicles. Plus, I help him out from time to time with material from my machine shop. Anyway, he said that it did not sound like induced noise and thought it was not in the RCA's. He said either something wrong in the Eclipse or maybe some noise from the power leads of the head. Any thoughts?? "Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. wrote in message news:1zYdb.634049$o%2.291299@sccrnsc02... Where are your gains set? Did you follow the JL guidelines? They may be up too high. I'm thinking it's a HU problem or you may have your rcas routed close to a device that is radiating noise into your rcas. Paul Vina "dconder" wrote in message ... I was able to try a couple of things this morning and here is what I have now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
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Noise problem please help.
"Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. \ They might not be 5V preouts. Sony used to say their HU's had 4V preouts but it was 2V per channel. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. It's possible. The strain of being moved around and pulled on a lot has been known to damage them. Paul Vina |
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Noise problem please help.
Well, lets throw another log on the fire. I tried several different cable
combinations and it is pretty much the same deal. I now have my setup exactly the way it was. The JL 300/4 bridged and the gains on both amps all the way down. The hum is still there although not as loud. My problem now is that when I turn the volume up to about 3/4, (Eclipse goes to 80, so 60), the front speakers shut off. I do not even have to get to 60. Anywhere from 50-60 and they will shut off for a second or two and then might cycle on and off. Could there be something in the Diamond M661's that could be causing all the problem. Even with the gains down, it will get pretty loud but, it just shut them off. Where do we go now. I am pretty convinced the rca cables and the amps are fine. "Paul Vina" wrote in message news:GwZdb.631995$Ho3.121509@sccrnsc03... "Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. \ They might not be 5V preouts. Sony used to say their HU's had 4V preouts but it was 2V per channel. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. It's possible. The strain of being moved around and pulled on a lot has been known to damage them. Paul Vina |
#18
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Noise problem please help.
BINGO! I'll bet one of your speakers is bad and showing the amp a short or
is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina "dconder" wrote in message ... Well, lets throw another log on the fire. I tried several different cable combinations and it is pretty much the same deal. I now have my setup exactly the way it was. The JL 300/4 bridged and the gains on both amps all the way down. The hum is still there although not as loud. My problem now is that when I turn the volume up to about 3/4, (Eclipse goes to 80, so 60), the front speakers shut off. I do not even have to get to 60. Anywhere from 50-60 and they will shut off for a second or two and then might cycle on and off. Could there be something in the Diamond M661's that could be causing all the problem. Even with the gains down, it will get pretty loud but, it just shut them off. Where do we go now. I am pretty convinced the rca cables and the amps are fine. "Paul Vina" wrote in message news:GwZdb.631995$Ho3.121509@sccrnsc03... "Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. \ They might not be 5V preouts. Sony used to say their HU's had 4V preouts but it was 2V per channel. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. It's possible. The strain of being moved around and pulled on a lot has been known to damage them. Paul Vina |
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Noise problem please help.
I guess that was too good to be true. I unhooked both speakers and hooked
up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
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Noise problem please help.
Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL
amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
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Noise problem please help.
Probably not induced noise since it happens with the engine off.
Ge0 "Douglas Conder" wrote in message ink.net... Well, I just took the car to my local installer. Great guy. I do all my own installs but, he did a great custom enclosure for one of my vehicles. Plus, I help him out from time to time with material from my machine shop. Anyway, he said that it did not sound like induced noise and thought it was not in the RCA's. He said either something wrong in the Eclipse or maybe some noise from the power leads of the head. Any thoughts?? "Douglas Conder" wrote in message ink.net... Right now, they are down about to the bottom. I do use a test cd when I set the gains and a multimeter to set to the JL specs. The one weird thing on setting is the Eclipse has 5 volt preouts. The JL has a low/high setting for input sensitivity and with the Eclipse, it should be on high. But, if I set it on high, even with the gain all the way up, it will not reach its target voltage. That has puzzled me as well. Maybe all of this is related somehow. I am going to buy a really good set of long cables today so I can do some outside the vehicle and vehicle to vehicle testing. I too, think the JL amps are fine and it has to be farther up the chain. My rca's now are Rockford Twisted cables run down the center console but, they have been thru several installs and vehicles and maybe something has happened to them. wrote in message news:1zYdb.634049$o%2.291299@sccrnsc02... Where are your gains set? Did you follow the JL guidelines? They may be up too high. I'm thinking it's a HU problem or you may have your rcas routed close to a device that is radiating noise into your rcas. Paul Vina "dconder" wrote in message ... I was able to try a couple of things this morning and here is what I have now. First off, here is the system: Eclipse 7002 Eclipse 5122 JL 300/4 JL 500/1 Diamond M661 front ID IDMAX 12" trunk I took a portable digital radio and hooked it up to the 300/4 and unhooked the 500/1 rca's. There was only a slight hiss in the tweeters. Probably acceptable. I then hooked the portable up to the 500/1 and ran a really good set of Stinger RCA's from the 500/1's pass thru into the 300/4's inputs. Again, only a slight hiss. Then I hooked my Rockford rca's coming from the Eclipse brain into the 500/1 and used the Stinger from the 500/1 into the 300/4 as before. There is still a changing pitch hum as before but, not as bad. So, I have only one set of rca's from the brain to the 500/1 and I use the pass thru on the 500/1 to the 300/4. This leaves the set of rca's from the brain to the 300/4 unhooked. The noise is still there but probably half the volume. Problem is, I loose the ability to control the sub seperate this way. I hope that helps some more. Let me know what you think at this point. I do so appreciate all your help Paul. "Paul Vina" wrote in message news:kGNdb.626285$Ho3.120442@sccrnsc03... From what you've said you've done it has to be a problem before the amps. Let me know what happens after you run your HU to the other car. Paul Vina |
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Noise problem please help.
That pretty much rules out the Eclipse HU and the Diamonds. When you have
time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
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Noise problem please help.
Will try that today for sure. Its kinda double-edged, I hope it is not the
amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
#24
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Noise problem please help.
Not the amp. I swapped them out before I came to work. Same Jl 300/4 in
both vehicles. Does the exact same thing. Hum still there and speakers still shut off. I have had a few people suggest a ground loop but, would this affect the speakers shutting off? It could explain the hum but, what about the speakers? "dconder" wrote in message ... Will try that today for sure. Its kinda double-edged, I hope it is not the amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
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Noise problem please help.
Check all of the speaker wiring, it may have rubbed through the insulation
somewhere and be causing a short. Paul Vina "Douglas Conder" wrote in message ink.net... Not the amp. I swapped them out before I came to work. Same Jl 300/4 in both vehicles. Does the exact same thing. Hum still there and speakers still shut off. I have had a few people suggest a ground loop but, would this affect the speakers shutting off? It could explain the hum but, what about the speakers? "dconder" wrote in message ... Will try that today for sure. Its kinda double-edged, I hope it is not the amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
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Noise problem please help.
Well, I think I finally found my humming problem. Looks like my JL 500/1
has a problem. I took the 250/1 out of my other vehicle and hooked it up in place of the 500/1 and sure enough, no hum whatsoever. Took the 500/1 off the amp board and tried it one last time and immediate hum. Not sure why but, very irritating. My seconder JL amp I have had problems with. One of my 300/4's did basically the same thing. I still do not have the speaker problem figured out. I tried unhooking one speaker and the other would not shut off. Reverse the process and same thing. It seems that they only shut off with both of them playing at the same time. I think I might try to run new wire outside the car to the speakers and see what that does. Confused to say the least. "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina |
#27
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Noise problem please help.
Forgot to add, it is the 300/4 that is shutting off and on.
"dconder" wrote in message ... Well, I think I finally found my humming problem. Looks like my JL 500/1 has a problem. I took the 250/1 out of my other vehicle and hooked it up in place of the 500/1 and sure enough, no hum whatsoever. Took the 500/1 off the amp board and tried it one last time and immediate hum. Not sure why but, very irritating. My seconder JL amp I have had problems with. One of my 300/4's did basically the same thing. I still do not have the speaker problem figured out. I tried unhooking one speaker and the other would not shut off. Reverse the process and same thing. It seems that they only shut off with both of them playing at the same time. I think I might try to run new wire outside the car to the speakers and see what that does. Confused to say the least. "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina |
#28
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Noise problem please help.
What is the impedance of the comp set that the 300/4 is connected to?
Paul Vina "dconder" wrote in message ... Forgot to add, it is the 300/4 that is shutting off and on. "dconder" wrote in message ... Well, I think I finally found my humming problem. Looks like my JL 500/1 has a problem. I took the 250/1 out of my other vehicle and hooked it up in place of the 500/1 and sure enough, no hum whatsoever. Took the 500/1 off the amp board and tried it one last time and immediate hum. Not sure why but, very irritating. My seconder JL amp I have had problems with. One of my 300/4's did basically the same thing. I still do not have the speaker problem figured out. I tried unhooking one speaker and the other would not shut off. Reverse the process and same thing. It seems that they only shut off with both of them playing at the same time. I think I might try to run new wire outside the car to the speakers and see what that does. Confused to say the least. "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina |
#29
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Noise problem please help.
The M661 is 4 ohm.
"Paul Vina" wrote in message . net... What is the impedance of the comp set that the 300/4 is connected to? Paul Vina "dconder" wrote in message ... Forgot to add, it is the 300/4 that is shutting off and on. "dconder" wrote in message ... Well, I think I finally found my humming problem. Looks like my JL 500/1 has a problem. I took the 250/1 out of my other vehicle and hooked it up in place of the 500/1 and sure enough, no hum whatsoever. Took the 500/1 off the amp board and tried it one last time and immediate hum. Not sure why but, very irritating. My seconder JL amp I have had problems with. One of my 300/4's did basically the same thing. I still do not have the speaker problem figured out. I tried unhooking one speaker and the other would not shut off. Reverse the process and same thing. It seems that they only shut off with both of them playing at the same time. I think I might try to run new wire outside the car to the speakers and see what that does. Confused to say the least. "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina |
#30
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Noise problem please help.
Just out of curiosity, how do you have your amp mounted? Is the heat sink
to the amp grounded to the vehicles chassis or is it isolated? Many times manufactures will tie the heat sink of their amps to the internal power supplies floating secondary ground in an effort to eliminate ground loops. Now, if you bolt the amp to the vehicles sheet metal you reconnect that ground path. This not only can induce noise but can damage the amp. Ge0 ******************************************* TeamAMP #4 - tech whiz type of guy ******************************************* Low cost car stereo equipment repair/ modification Contact me for advice or a quote. Always interested in buying dead equipment too. ******************************************** Looking for answers on car stereo topics? www.mobileaudio.com www.teamrocs.com http://go.to/bcae/ ******************************************* Geo uses: Main Stage = a/d/s/ 346is Rear fill = a/d/s/ 345is Subs = Audiomobile Mass 2012 S24 Head unit = Alpine DVA-7996 Processor = Alpine PXA-H700 Sub Amp = a/d/s/ P4100.2 Main & rear fill amp = a/d/s/ P840.2 ******************************************** www.microheat.com ******************************************** "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina "Douglas Conder" wrote in message ink.net... Not the amp. I swapped them out before I came to work. Same Jl 300/4 in both vehicles. Does the exact same thing. Hum still there and speakers still shut off. I have had a few people suggest a ground loop but, would this affect the speakers shutting off? It could explain the hum but, what about the speakers? "dconder" wrote in message ... Will try that today for sure. Its kinda double-edged, I hope it is not the amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
#31
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Noise problem please help.
Ge0 wrote
Just out of curiosity, how do you have your amp mounted? Is the heat sink to the amp grounded to the vehicles chassis or is it isolated? Many times manufactures will tie the heat sink of their amps to the internal power supplies floating secondary ground in an effort to eliminate ground loops. Now, if you bolt the amp to the vehicles sheet metal you reconnect that ground path. This not only can induce noise but can damage the amp. This irks me to no end. Why would someone (some company) design a product this way? What would ever possess them to make an amp for a car that you can't mount on metal? And heck, if they really want to build it so that it needs to not touch metal ... build it so that it CAN'T ... arg, just makes me very angry ... I'm done ranting for now. -- Regards, Dan Snooks |
#32
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Noise problem please help.
My amps are mounted to an MDF board.
Update..... It appears all my components are ok. At least, as far as I can tell. I have swapped about everything I can. I still have the hum and the speakers still shut off at high levels. The only other thing I know to try is run new speaker wire and make sure it is not that. Other than that...??? "Ge0" wrote in message s.com... Just out of curiosity, how do you have your amp mounted? Is the heat sink to the amp grounded to the vehicles chassis or is it isolated? Many times manufactures will tie the heat sink of their amps to the internal power supplies floating secondary ground in an effort to eliminate ground loops. Now, if you bolt the amp to the vehicles sheet metal you reconnect that ground path. This not only can induce noise but can damage the amp. Ge0 ******************************************* TeamAMP #4 - tech whiz type of guy ******************************************* Low cost car stereo equipment repair/ modification Contact me for advice or a quote. Always interested in buying dead equipment too. ******************************************** Looking for answers on car stereo topics? www.mobileaudio.com www.teamrocs.com http://go.to/bcae/ ******************************************* Geo uses: Main Stage = a/d/s/ 346is Rear fill = a/d/s/ 345is Subs = Audiomobile Mass 2012 S24 Head unit = Alpine DVA-7996 Processor = Alpine PXA-H700 Sub Amp = a/d/s/ P4100.2 Main & rear fill amp = a/d/s/ P840.2 ******************************************** www.microheat.com ******************************************** "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina "Douglas Conder" wrote in message ink.net... Not the amp. I swapped them out before I came to work. Same Jl 300/4 in both vehicles. Does the exact same thing. Hum still there and speakers still shut off. I have had a few people suggest a ground loop but, would this affect the speakers shutting off? It could explain the hum but, what about the speakers? "dconder" wrote in message ... Will try that today for sure. Its kinda double-edged, I hope it is not the amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
#33
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Noise problem please help.
That's the last thing at this point, but it could very well be it.
Paul Vina "dconder" wrote in message ... My amps are mounted to an MDF board. Update..... It appears all my components are ok. At least, as far as I can tell. I have swapped about everything I can. I still have the hum and the speakers still shut off at high levels. The only other thing I know to try is run new speaker wire and make sure it is not that. Other than that...??? "Ge0" wrote in message s.com... Just out of curiosity, how do you have your amp mounted? Is the heat sink to the amp grounded to the vehicles chassis or is it isolated? Many times manufactures will tie the heat sink of their amps to the internal power supplies floating secondary ground in an effort to eliminate ground loops. Now, if you bolt the amp to the vehicles sheet metal you reconnect that ground path. This not only can induce noise but can damage the amp. Ge0 ******************************************* TeamAMP #4 - tech whiz type of guy ******************************************* Low cost car stereo equipment repair/ modification Contact me for advice or a quote. Always interested in buying dead equipment too. ******************************************** Looking for answers on car stereo topics? www.mobileaudio.com www.teamrocs.com http://go.to/bcae/ ******************************************* Geo uses: Main Stage = a/d/s/ 346is Rear fill = a/d/s/ 345is Subs = Audiomobile Mass 2012 S24 Head unit = Alpine DVA-7996 Processor = Alpine PXA-H700 Sub Amp = a/d/s/ P4100.2 Main & rear fill amp = a/d/s/ P840.2 ******************************************** www.microheat.com ******************************************** "Paul Vina" wrote in message . net... Check all of the speaker wiring, it may have rubbed through the insulation somewhere and be causing a short. Paul Vina "Douglas Conder" wrote in message ink.net... Not the amp. I swapped them out before I came to work. Same Jl 300/4 in both vehicles. Does the exact same thing. Hum still there and speakers still shut off. I have had a few people suggest a ground loop but, would this affect the speakers shutting off? It could explain the hum but, what about the speakers? "dconder" wrote in message ... Will try that today for sure. Its kinda double-edged, I hope it is not the amp but, then again, at least I would know what it is. "Paul Vina" wrote in message . net... That pretty much rules out the Eclipse HU and the Diamonds. When you have time, try the 300/4 in your wife's car and her amp in yours. Paul Vina "dconder" wrote in message ... Ok, here is what I tried. Ran the rca's from my Eclipse brain into the JL amps in my other vehicle. I tried my hardest but could not hear the hum and pitch change. There was hiss but, no hum. I then hooked my Alpine IVA-C800, that is in my other vehicle, up to the JL amps in my noise vehicle and the noise came thru the Diamonds just like from the Eclipse. Maybe not quite as loud but, that could be a preamp voltage difference between the two units. I am pretty much at a loss. It started raining so, I am done for the night but, any more suggestions you have, I will try. I really should take the Eclipse out and have it checked to eliminate it but, I do not know if anyone local can tell me that. I hate to have to send it in to Eclipse without knowing if it is bad or not. "dconder" wrote in message ... I guess that was too good to be true. I unhooked both speakers and hooked up a test speaker that I ran straight out of the 300/4 amp. I used my Image Dynamics Chameleon, ran it thru its xover and only hooked up the tweeter. Noise still there, just like the Diamonds. I guess that eliminates the Diamonds from being a problem. My wife just got home so, I am going to run from the Eclipse brain into the JL amps in my other vehicle. Hopefully, that will tell me something. I will update again in a few minutes. "Paul Vina" wrote in message . net... BINGO! I'll bet one of your speakers is bad and showing the amp a short or is actually shorting directly to ground. Disconnect all of the speakers and then reconnect them one at a time until the noise comes back. Once you find the set that's bad you can do the same thing to see if it's the mid, tweet or crossover itself. Paul Vina |
#34
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Noise problem please help.
trye grownding your amps to each other specialy if you have capacitor or maybe the noise is coming from your altenarator for this there are special filters . hope i help you. -- styianni ------------------------------------------------------------------------ Posted via RealCarAudio.com - The checkmate of the caraudio community. http://www.RealCarAudio.com styianni's Profile: http://www.realcaraudio.com/forums/m...fo&userid=1748 View this thread: http://www.realcaraudio.com/forums/s...?threadid=9522 |
#35
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Noise problem please help.
My amps are ground at the same point. I am not using a cap but, I have one.
I am actually going to try it tonight to see if it will help with the amp shutting down. JL thinks it is a voltage problem. "styianni" wrote in message ... trye grownding your amps to each other specialy if you have capacitor or maybe the noise is coming from your altenarator for this there are special filters . hope i help you. -- styianni ------------------------------------------------------------------------ Posted via RealCarAudio.com - The checkmate of the caraudio community. http://www.RealCarAudio.com styianni's Profile: http://www.realcaraudio.com/forums/m...fo&userid=1748 View this thread: http://www.realcaraudio.com/forums/s...?threadid=9522 |
#36
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Noise problem please help.
Some progress to report.....
I found out that the reason my amp was shutting down was that somewhere, I have a big voltage drop. I checked the voltage with the music cranked and it was all over the place. Anywhere from 10's to 13's. At JL's suggestion, I replaced the 8 gauge with the 4 gauge coming straight from the battery and added a new 4 gauge ground and made a new ground point. This is just with the 300/4, not both amps. I cranked it up and loud as I wanted and it never shut off and sounded alot better. Checked the voltage again and even with the amp bridged, the voltage never dropped below 14 volts. So, for some reason, my 8 gauge cables were dropping voltage. Not sure why yet. I did notice that my ground cables were way too long. Not sure if that could do it but, they were like 5-6 feet each. The new 4 gauge ground is like 18". I am wondering if the noise problem could be something with the poor voltage. We will see. I have to figure out either a way to fixed the voltage leak from the 8 gauge or run 0/1 gauge to two 4 gauge or run another 4 gauge from the battery. Douglas "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#37
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Noise problem please help.
You only need a 2 gauge to supply (2) 4 gauge wires. 1/0 would be
ridiculous overkill. Paul Vina "Douglas Conder" wrote in message t... Some progress to report..... I found out that the reason my amp was shutting down was that somewhere, I have a big voltage drop. I checked the voltage with the music cranked and it was all over the place. Anywhere from 10's to 13's. At JL's suggestion, I replaced the 8 gauge with the 4 gauge coming straight from the battery and added a new 4 gauge ground and made a new ground point. This is just with the 300/4, not both amps. I cranked it up and loud as I wanted and it never shut off and sounded alot better. Checked the voltage again and even with the amp bridged, the voltage never dropped below 14 volts. So, for some reason, my 8 gauge cables were dropping voltage. Not sure why yet. I did notice that my ground cables were way too long. Not sure if that could do it but, they were like 5-6 feet each. The new 4 gauge ground is like 18". I am wondering if the noise problem could be something with the poor voltage. We will see. I have to figure out either a way to fixed the voltage leak from the 8 gauge or run 0/1 gauge to two 4 gauge or run another 4 gauge from the battery. Douglas "dconder" wrote in message ... Need some help badly. I just hooked up my JL 500/1 and my IDMAX (which is awesome btw). Some of you may remember, I had a noise problem with just the 300/4 hooked up but, I turned down the gains and could live with it. When I fired the 500/1 back up, the noise went crazy. All this with the engine off mind you. The noise sounds like listening to an AM station and the whine changes pitch up and down. It is pretty darn loud. I tried all of this but, nothing helped: Unplugged RCA's to amps, noise gone Used a muted cable, noise gone Tried new ground point for amps, noise still there Ran new remote wire outside of car, noise still there Ran RCA's outside of car, noise still there. Tried new ground for head unit, noise still there unplugged antennae at brain and head unit, noise still there. I am out of ideas. This is not a noise that can be lived with. Anyone who has a suggestion, please speak up. If I can not get something done, I will have to take it to my local installer and see if he can track it down. Which will probably cost a fortune. This noise has not always been a problem. When I had my Image Chameleons and a pair of ID12's, there was no noise like this. I switched to the Diamond M661 and took the ID's out and the small noise started with the 300/4. Then, added the IDMAX and hooked the 500/1 back up and noise started. Thanks. __________________ ---------------- Ever Changing System Eclipse 7002 indash screen Eclipse 5122 Disc changer PS2 JL Audio 300/4 JL Audio 500/1 Diamond Audio M661 up front Image Dyanamics 12" IDMAX |
#38
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Noise problem please help.
Douglas Conder wrote
Some progress to report..... I found out that the reason my amp was shutting down was that somewhere, I have a big voltage drop. I checked the voltage with the music cranked and it was all over the place. Anywhere from 10's to 13's. At JL's suggestion, I replaced the 8 gauge with the 4 gauge coming straight from the battery and added a new 4 gauge ground and made a new ground point. This is just with the 300/4, not both amps. I cranked it up and loud as I wanted and it never shut off and sounded alot better. Checked the voltage again and even with the amp bridged, the voltage never dropped below 14 volts. So, for some reason, my 8 gauge cables were dropping voltage. Not sure why yet. I did notice that my ground cables were way too long. Not sure if that could do it but, they were like 5-6 feet each. The new 4 gauge ground is like 18". I am wondering if the noise problem could be something with the poor voltage. We will see. I have to figure out either a way to fixed the voltage leak from the 8 gauge or run 0/1 gauge to two 4 gauge or run another 4 gauge from the battery. Paul is right about the 1/0 being overkill, I would go a step further and say that you can run the existing 4 gauge into a fused distro block and then use 6 gauge to each amp from there (try to keep the 6 gauge runs short) You could also run the same deal with the grounds using an unfused distro, but the only reason to do that would be esthetics. -- Regards, Dan Snooks |
#39
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Noise problem please help.
Thanks Daniel for the suggestion. Turns out, it was not the wire but for
some reason, the ground point. I made a new ground point and hooked the 2 8 gauge ground cables to it and everything worked fine. The noise problem seems to be a ground loop. I installed a Scosche Isolater and I think it got about all of it. Now, I just have a bit of hiss. Getting closer I think. "Daniel Snooks" wrote in message ... Douglas Conder wrote Some progress to report..... I found out that the reason my amp was shutting down was that somewhere, I have a big voltage drop. I checked the voltage with the music cranked and it was all over the place. Anywhere from 10's to 13's. At JL's suggestion, I replaced the 8 gauge with the 4 gauge coming straight from the battery and added a new 4 gauge ground and made a new ground point. This is just with the 300/4, not both amps. I cranked it up and loud as I wanted and it never shut off and sounded alot better. Checked the voltage again and even with the amp bridged, the voltage never dropped below 14 volts. So, for some reason, my 8 gauge cables were dropping voltage. Not sure why yet. I did notice that my ground cables were way too long. Not sure if that could do it but, they were like 5-6 feet each. The new 4 gauge ground is like 18". I am wondering if the noise problem could be something with the poor voltage. We will see. I have to figure out either a way to fixed the voltage leak from the 8 gauge or run 0/1 gauge to two 4 gauge or run another 4 gauge from the battery. Paul is right about the 1/0 being overkill, I would go a step further and say that you can run the existing 4 gauge into a fused distro block and then use 6 gauge to each amp from there (try to keep the 6 gauge runs short) You could also run the same deal with the grounds using an unfused distro, but the only reason to do that would be esthetics. -- Regards, Dan Snooks |
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