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#1
Posted to rec.audio.car
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Speaker Impedence
As we all know, OEM Bose systems have speakers that are very low
impedence...1/2 ohm, or 1 ohm, or something like that. Is there any way, in terms of adding resisters and the like, to lower the impedence of regular speakers from 4 ohm down to 1/2 or 1 ohm? Something that I can do myself and be able to replace the Bose speakers with my own? Or, if this isn't possible, are there any manufacturers out there that make very low impedence speakers? Excuse my ignorance. I've always been ohm-challenged. Tony -- 2001 Nissan Maxima SE Anniversary Edition Clarion DRZ9255 Head Unit, Phoenix Gold ZX475ti, ZX450 and Xenon X1200.1 Amplifiers, Dynaudio System 360 Tri-Amped In Front and Focal 130HCs For Rear Fill, Image Dynamics IDMAX10 D4 v.3 Sub 2001 Chevy S10 ZR2 Pioneer DEH-P9600MP Head Unit, Phoenix Gold Ti500.4 Amp, Focal 165HC Speakers & Image Dynamics ID8 D4 v.3 Sub 2006 Mustang GT Coupe Alpine IVA-D310 DVD Head Unit, Alpine MRA-550 Digital 5.1 Amp, Boston Acoustics Z-Series Speakers, Alpine SBS-05DC Center Channel Speaker, Amplified MTX Thunderform Sub |
#2
Posted to rec.audio.car
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Speaker Impedence
puttin resistors in-line does very little, becuase while it drops the impedence, half the power just gets wasted through heat through the resistor anyways, so there is really no extra power going to the speaker. all you can do is replace the speakers and take the power hit, or else replace the head unit and/or get an external amp to power the new speakers. lowest speaker impedences I've seen are 2 ohm, by infinity kappas, orion HCCA's, and I think image dynamics made some. but buying for impedence only is sort of the worst way to buy because it has no affect on sound (given the same power). -- KU40 |
#3
Posted to rec.audio.car
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Speaker Impedence
"but buying for impedence only is sort of the worst way to buy because it
has no affect on sound (given the same power)." Thanks for your response. I understood everything you said except for this last sentence (see above). Tony |
#4
Posted to rec.audio.car
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Speaker Impedence
As long as your amplifier doesn't overcurrent, there's no reason it can't run a 1 or 0.5ohm load. Try it out. That is pretty darn low, but keep the gain low and give it a shot. You might be fine. If the amp cuts out or goes into protect at high volumes, then it's pretty clear it can't support that load. Of course, this only works if the amp has good overcurrent protection. Every amp should have, but it's possible some amps can't fully protect themselves. Try it at your own risk. -- eezip |
#5
Posted to rec.audio.car
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Speaker Impedence
Eezip,
This has nothing to do with trying to run any amps at low impedance loads. I'm trying to find speakers to replace the Bose speakers, which are 1 or 2 ohms, or something like that. Tony |
#6
Posted to rec.audio.car
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Speaker Impedence
Not good advice, I'm afraid Tony. I know EEZIP means well but I blew an amp
once (a Rockford Fosgate Punch 75, an amp KNOWN for it's reliability) doing EXACTLY what he is recommending. But then again, I have seen others who have done this with amps not rated for those impedences with no problems. Of course, it all depends on the amp, but THERE ARE DANGERS. Frankly, if you value the amp, I wouldn't do it. Nick "eezip" wrote in message ... As long as your amplifier doesn't overcurrent, there's no reason it can't run a 1 or 0.5ohm load. Try it out. That is pretty darn low, but keep the gain low and give it a shot. You might be fine. If the amp cuts out or goes into protect at high volumes, then it's pretty clear it can't support that load. Of course, this only works if the amp has good overcurrent protection. Every amp should have, but it's possible some amps can't fully protect themselves. Try it at your own risk. -- eezip |
#7
Posted to rec.audio.car
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Speaker Impedence
This has nothing to do with trying to run any amps at low impedance loads.
I'm trying to find speakers to replace the Bose speakers, which are 1 or 2 ohms, or something like that. Tony Oh, sorry Tony. I didn't read this message before I posted the other. Oh well, what I said still stands of course. See ya, Nick |
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