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Behringer ECM8000 help req.
Hi,
Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to preform according to specs. ( as stated on the freq. response graph) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still preform according to what the specs state? Im going to do room equilisation measurements with the thing, so the freq response properties are rather important to me. I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? Thanks Witek. |
#2
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Behringer ECM8000 help req.
"Witek" wrote in message
om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. |
#3
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Behringer ECM8000 help req.
"Witek" wrote in message
om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. |
#4
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Behringer ECM8000 help req.
"Witek" wrote in message
om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. |
#5
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Behringer ECM8000 help req.
"Witek" wrote in message
om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. |
#6
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Behringer ECM8000 help req.
Hi Arny,
"Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I havn't actually got around to doing a sensitivity vs voltage measurement yet, but will some time) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definately seems like a good little mic for the price, I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#7
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Behringer ECM8000 help req.
Hi Arny,
"Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I havn't actually got around to doing a sensitivity vs voltage measurement yet, but will some time) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definately seems like a good little mic for the price, I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#8
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Behringer ECM8000 help req.
Hi Arny,
"Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I havn't actually got around to doing a sensitivity vs voltage measurement yet, but will some time) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definately seems like a good little mic for the price, I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#9
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Behringer ECM8000 help req.
Hi Arny,
"Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I havn't actually got around to doing a sensitivity vs voltage measurement yet, but will some time) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Mergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definately seems like a good little mic for the price, I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#10
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Behringer ECM8000 help req.
"Simon Byrnand" wrote in message
om Hi Arny, "Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I haven't actually got around to doing a sensitivity vs. voltage measurement yet, but will some time) I think that was true of the two previous generations of Ultracurve as well. There is a standard involving low Phantom voltages in the 12-15 volt range. A Friend has a Benchmark Media mic preamp with 15 volt phantom power as well. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? No, just the web page I cited. http://www.imagendv.com/altavoces/micro_med.htm Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? I've never actually had one of the old-style ECM 8000s in my hands. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) Hey, we caught Behringer in a lie. ;-) Oh, I get it, the box is symbolic. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? AFAIK, both. If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Vergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definitely seems like a good little mic for the price, Says a lot about the mic and the price! I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement It's not the only Behringer product with a roll-off like that. Their PEQ 2200 equalizer is -3 at 18 Hz, -1 at 36 Hz. Quiet buggar, though. Was Ken referring to the transformer version or IC version ? Given the time frame, I'd guess Ken was using the transformerless versions. He said nothing about the rolloff, that's my addition. I noticed it in my comparisons with a DPA measurement mic and then noticed that it was implied by some specs I'd seen for the ECM 8000. Ironically, it appears that Ken was designing a subwoofer with it. I'm sure he knew all about the roll off and was compensating for it, at least in his mind. |
#11
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Behringer ECM8000 help req.
"Simon Byrnand" wrote in message
om Hi Arny, "Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I haven't actually got around to doing a sensitivity vs. voltage measurement yet, but will some time) I think that was true of the two previous generations of Ultracurve as well. There is a standard involving low Phantom voltages in the 12-15 volt range. A Friend has a Benchmark Media mic preamp with 15 volt phantom power as well. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? No, just the web page I cited. http://www.imagendv.com/altavoces/micro_med.htm Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? I've never actually had one of the old-style ECM 8000s in my hands. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) Hey, we caught Behringer in a lie. ;-) Oh, I get it, the box is symbolic. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? AFAIK, both. If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Vergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definitely seems like a good little mic for the price, Says a lot about the mic and the price! I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement It's not the only Behringer product with a roll-off like that. Their PEQ 2200 equalizer is -3 at 18 Hz, -1 at 36 Hz. Quiet buggar, though. Was Ken referring to the transformer version or IC version ? Given the time frame, I'd guess Ken was using the transformerless versions. He said nothing about the rolloff, that's my addition. I noticed it in my comparisons with a DPA measurement mic and then noticed that it was implied by some specs I'd seen for the ECM 8000. Ironically, it appears that Ken was designing a subwoofer with it. I'm sure he knew all about the roll off and was compensating for it, at least in his mind. |
#12
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Behringer ECM8000 help req.
"Simon Byrnand" wrote in message
om Hi Arny, "Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I haven't actually got around to doing a sensitivity vs. voltage measurement yet, but will some time) I think that was true of the two previous generations of Ultracurve as well. There is a standard involving low Phantom voltages in the 12-15 volt range. A Friend has a Benchmark Media mic preamp with 15 volt phantom power as well. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? No, just the web page I cited. http://www.imagendv.com/altavoces/micro_med.htm Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? I've never actually had one of the old-style ECM 8000s in my hands. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) Hey, we caught Behringer in a lie. ;-) Oh, I get it, the box is symbolic. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? AFAIK, both. If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Vergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definitely seems like a good little mic for the price, Says a lot about the mic and the price! I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement It's not the only Behringer product with a roll-off like that. Their PEQ 2200 equalizer is -3 at 18 Hz, -1 at 36 Hz. Quiet buggar, though. Was Ken referring to the transformer version or IC version ? Given the time frame, I'd guess Ken was using the transformerless versions. He said nothing about the rolloff, that's my addition. I noticed it in my comparisons with a DPA measurement mic and then noticed that it was implied by some specs I'd seen for the ECM 8000. Ironically, it appears that Ken was designing a subwoofer with it. I'm sure he knew all about the roll off and was compensating for it, at least in his mind. |
#13
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Behringer ECM8000 help req.
"Simon Byrnand" wrote in message
om Hi Arny, "Arny Krueger" wrote in message ... "Witek" wrote in message om Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to perform according to specs. ( as stated on the freq. response graph) 48 volts is not an absolute requirement for the ECM 8000 . It works well with considerably less phantom voltage. Inside the mic there is a regulated power supply running someplace around 12 volts. I just recently got an ECM8000 to go with the DEQ2496 equalizer, and the measured phantom voltage on the MIC input of that is only 14.9v so one would assume that anything from 15v to 48v would be ok if they have a built in 12v regulator...(I haven't actually got around to doing a sensitivity vs. voltage measurement yet, but will some time) I think that was true of the two previous generations of Ultracurve as well. There is a standard involving low Phantom voltages in the 12-15 volt range. A Friend has a Benchmark Media mic preamp with 15 volt phantom power as well. What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still perform according to what the specs state? Actually, the ECM 8000 you buy today will probably not precisely meet Behringer's published specs because they've changed the mic considerably without changing the model number or spec sheet. Hmm, interesting.... do you have any info on how they are different ? No, just the web page I cited. http://www.imagendv.com/altavoces/micro_med.htm Sensitivity ? Rolloff frequencies etc ? Have you done any direct comparision between them ? I've never actually had one of the old-style ECM 8000s in my hands. There are two significantly different ECM 8000 designs, one with a FET and a transformer and true balanced output, and one with an IC buffer and transfomerless output. I don't recommend disassembling yours to identify it, as the mic element leads are very fine and are exceedingly easy to break. The resistance to ground from pins 2 & 3 of a mic I know for sure to be transformerless was about 200 K, and from pin 2 to 3 I measured 330 K with a DVM. I presume that the transformer version would have a far smaller resistance between pins 2 & 3. Just measured mine and I get 196K from ground to pin 2 or 3, and 355K from pin 2 to pin 3, so I guess I have the one without the transformer. Bit sneaky that the box still shows a diagram of a transformer coupled output ;-) Hey, we caught Behringer in a lie. ;-) Oh, I get it, the box is symbolic. I've only seen detailed photos of the transformer version. I'm going to do room equalization measurements with the thing, so the freq response properties are rather important to me. Another thing to remember is that the ECM 8000 rolls off the bass end, with its - 3dB point someplace around 40 Hz. Was that for the original transformer version or the new IC version ? AFAIK, both. If that was for the transformer version its possible that the transformer itself may have been rolling off the bottom end as well, and the IC version may go a bit lower...(one can hope anyway I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf I have no phantom power supply yet, so I can test anything myself. Can anyone with any experience with the ECM8000 shed some light on the matter? It's a great mic for the price, and not a bad mic overall. Ken Kantor (senior designer for AR & founder of NHT and Vergence) turned me on to them. I've compared them side-by-side to B&K mics costing about 40 times as much. From 40 to 23 KHz, it's a horse race in terms of frequency response. BTW, Ken recommended using them with Rolls MP-13 mic preamps that only put out about 22 volts of phantom power. Good to know... definitely seems like a good little mic for the price, Says a lot about the mic and the price! I also made up a transformer based balanced to unbalanced isolation and phantom power box using a couple of 9v batteries so I could use it with my computer, and it seems to work fine. Pity about the bottom end rolloff below 40Hz though. (Although the previous microphone I had rolled off below 150Hz so its a definite improvement It's not the only Behringer product with a roll-off like that. Their PEQ 2200 equalizer is -3 at 18 Hz, -1 at 36 Hz. Quiet buggar, though. Was Ken referring to the transformer version or IC version ? Given the time frame, I'd guess Ken was using the transformerless versions. He said nothing about the rolloff, that's my addition. I noticed it in my comparisons with a DPA measurement mic and then noticed that it was implied by some specs I'd seen for the ECM 8000. Ironically, it appears that Ken was designing a subwoofer with it. I'm sure he knew all about the roll off and was compensating for it, at least in his mind. |
#14
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Behringer ECM8000 help req.
On Thu, 11 Mar 2004 02:59:30 +0000, Witek wrote:
Hi, Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to preform according to specs. ( as stated on the freq. response graph) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still preform according to what the specs state? If you go to the Behringer site and download a file called ECM8000_C_Specs.pdf you'll see it says the +15V to +48V. So your 17V should be just fine. |
#15
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Behringer ECM8000 help req.
On Thu, 11 Mar 2004 02:59:30 +0000, Witek wrote:
Hi, Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to preform according to specs. ( as stated on the freq. response graph) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still preform according to what the specs state? If you go to the Behringer site and download a file called ECM8000_C_Specs.pdf you'll see it says the +15V to +48V. So your 17V should be just fine. |
#16
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Behringer ECM8000 help req.
On Thu, 11 Mar 2004 02:59:30 +0000, Witek wrote:
Hi, Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to preform according to specs. ( as stated on the freq. response graph) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still preform according to what the specs state? If you go to the Behringer site and download a file called ECM8000_C_Specs.pdf you'll see it says the +15V to +48V. So your 17V should be just fine. |
#17
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Behringer ECM8000 help req.
On Thu, 11 Mar 2004 02:59:30 +0000, Witek wrote:
Hi, Can anyone please tell me if the Behringer ECM8000 requires 48V of phantom power to preform according to specs. ( as stated on the freq. response graph) What I'm basically trying to ask is, if I take and build my own phantom power supply and it only supply it with lets say 17V, will the mike still preform according to what the specs state? If you go to the Behringer site and download a file called ECM8000_C_Specs.pdf you'll see it says the +15V to +48V. So your 17V should be just fine. |
#18
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Behringer ECM8000 help req.
"Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? TonyP. |
#19
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Behringer ECM8000 help req.
"Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? TonyP. |
#20
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Behringer ECM8000 help req.
"Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? TonyP. |
#21
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Behringer ECM8000 help req.
"Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? TonyP. |
#22
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Behringer ECM8000 help req.
"TonyP" wrote in message
u "Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? The only way I know to settle that is to buy one of each and compare them exhaustively. Hardly seems worth the trouble given that the ECM 8000 is as good as it is, and so readily available. |
#23
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Behringer ECM8000 help req.
"TonyP" wrote in message
u "Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? The only way I know to settle that is to buy one of each and compare them exhaustively. Hardly seems worth the trouble given that the ECM 8000 is as good as it is, and so readily available. |
#24
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Behringer ECM8000 help req.
"TonyP" wrote in message
u "Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? The only way I know to settle that is to buy one of each and compare them exhaustively. Hardly seems worth the trouble given that the ECM 8000 is as good as it is, and so readily available. |
#25
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Behringer ECM8000 help req.
"TonyP" wrote in message
u "Arny Krueger" wrote in message ... I suspect that this is the *real* spec sheet for the current version of the ECM 8000. http://www.soundfirst.org/audiotoolb..._datasheet.pdf But one is quoted as 200 ohm and the other as 600 ohm, I wonder if they are the same or just very similar? The only way I know to settle that is to buy one of each and compare them exhaustively. Hardly seems worth the trouble given that the ECM 8000 is as good as it is, and so readily available. |
#26
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Behringer ECM8000 help req.
I have no idea, but I will open up a few tomorrow. I can say that I
check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. -k (Simon Byrnand) wrote in message . com... Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#27
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Behringer ECM8000 help req.
I have no idea, but I will open up a few tomorrow. I can say that I
check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. -k (Simon Byrnand) wrote in message . com... Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#28
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Behringer ECM8000 help req.
I have no idea, but I will open up a few tomorrow. I can say that I
check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. -k (Simon Byrnand) wrote in message . com... Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#29
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Behringer ECM8000 help req.
I have no idea, but I will open up a few tomorrow. I can say that I
check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. -k (Simon Byrnand) wrote in message . com... Was Ken refering to the tranformer version or IC version ? Regards, Simon |
#30
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#31
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#32
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#33
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#34
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Behringer ECM8000 help req.
Based on terminal measurements, none of my ECM-8000's appear to have
transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. -k "Arny Krueger" wrote in message ... "Ken Kantor" wrote in message om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#35
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Behringer ECM8000 help req.
Based on terminal measurements, none of my ECM-8000's appear to have
transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. -k "Arny Krueger" wrote in message ... "Ken Kantor" wrote in message om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#36
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Behringer ECM8000 help req.
Based on terminal measurements, none of my ECM-8000's appear to have
transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. -k "Arny Krueger" wrote in message ... "Ken Kantor" wrote in message om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#37
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Behringer ECM8000 help req.
Based on terminal measurements, none of my ECM-8000's appear to have
transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. -k "Arny Krueger" wrote in message ... "Ken Kantor" wrote in message om I have no idea, but I will open up a few tomorrow. I can say that I check my mics frequently (we have MB, ACO and B&K references), and I have not yet seen a Behringer that was 3dB down at 20 KHz. I wouldn't worry much about it unless you need really "traceable" accuracy. I haven't seen any down at 20 KHz either, But what about 20 Hz? |
#38
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om Based on terminal measurements, none of my ECM-8000's appear to have transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. Been three, done that. Mine was transformeless, too. All of mine are less than a year old. Two are functioning as choir mics. Here's picture of the elusive?? transformer equipped ECM 8000: http://www.imagendv.com/altavoces/micro_med.htm After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. Still using the Rolls? I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. When I did my comparison I compared it to a DPA 4007 using the two channels of a Symmetrix 202, running into a LynxTwo. The |
#39
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om Based on terminal measurements, none of my ECM-8000's appear to have transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. Been three, done that. Mine was transformeless, too. All of mine are less than a year old. Two are functioning as choir mics. Here's picture of the elusive?? transformer equipped ECM 8000: http://www.imagendv.com/altavoces/micro_med.htm After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. Still using the Rolls? I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. When I did my comparison I compared it to a DPA 4007 using the two channels of a Symmetrix 202, running into a LynxTwo. The |
#40
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Behringer ECM8000 help req.
"Ken Kantor" wrote in message
om Based on terminal measurements, none of my ECM-8000's appear to have transformers. To verify, I actually opened one up this evening. Needless to say, I messed it up, since the wiring is very tight inside. Been three, done that. Mine was transformeless, too. All of mine are less than a year old. Two are functioning as choir mics. Here's picture of the elusive?? transformer equipped ECM 8000: http://www.imagendv.com/altavoces/micro_med.htm After I repaired it, I had to re-test its response. (I curse Usenet, again...) Compared to the reference mic (in this case a GenRad), it was within 1 dB down to 10 Hz, the limit of my test jig. I tested a second unit that was identical at the low end. Of course, the quality and input Z of the of the preamp will make a difference at the frequency extremes. Still using the Rolls? I have to say, though, that I haven't bought one of these mics in a few years, and so I can't be sure the design hasn't changed. Next time I am in GC, I will pick one up. When I did my comparison I compared it to a DPA 4007 using the two channels of a Symmetrix 202, running into a LynxTwo. The |
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