2 Speakers, 1 Works
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=69595
Printed Date: May 06, 2024 at 11:03 PM
Topic: 2 Speakers, 1 Works
Posted By: xandax
Subject: 2 Speakers, 1 Works
Date Posted: December 30, 2005 at 5:50 PM
Hey guys, I have two Audiobahn 15"s powered by a Legacy Amp with a Kenwood Headunit. I woke up today, jumped in the car and only one subwoofer was pushing. I checked the terminal connection inside and outside the box and everything was in contact. I checked the fuses on the amp and they were both fine. This leads me to believe that some setting on my HU got changed. Is it possible to turn one subwoofer off and leave the other on? Thanks for your help...
Replies:
Posted By: fingaz22
Date Posted: December 30, 2005 at 6:18 PM
how are your subs wired up? stereo or bridged? if stereo is your balance over to one side?or one channel is bad,no audio signal bad rca or head unit channel,or bad wire to sub . if bridged then i would say the sub gave up or bad wire also. take an multi meter on ohm setting and see if you have the 4 or 8 ohm resistance the sub is rated. if there is no resistance(infinite). then sub is bad ------------- JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs
Posted By: DYohn
Date Posted: December 30, 2005 at 6:30 PM
If you have two woofers powered from the same amp, sounds like you fried a voice coil (or have a defective woofer.) ------------- Support the12volt.com
Posted By: geepherder
Date Posted: December 30, 2005 at 8:07 PM
If it's a mono amp, you have a bad sub or wiring to the sub . If it's a stereo amp, swap the RCA's at the amp and see if the problem switches sides. If it does not, check for ac voltage at the speaker terminals. If you have voltage at the sub's terminals, the sub is bad. If you do not, the amp is bad.
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My ex once told me I have a perfect face for radio.
Posted By: fingaz22
Date Posted: December 30, 2005 at 8:13 PM
theres many ways to skin a sheep our diveristy is our sterength ------------- JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs
Posted By: xandax
Date Posted: December 31, 2005 at 12:25 AM
It's a 2 channel amp, after running the wires from the working subwoofer to the nonworking subwoofer, we determined that it isn't the wires or the sub. We think its the one channel has gone bad. If one channel does not work, is there any way to fix this without buying another amp?
Posted By: DYohn
Date Posted: December 31, 2005 at 12:55 AM
No, if it's an amplifier channel in a Legacy amp, it is trash. That's one reason they do not cost very much: they are not very reliable. Get a new amp, preferably a mono amp, and preferably next time not a Legacy.  ------------- Support the12volt.com
Posted By: arrow12
Date Posted: December 31, 2005 at 1:08 AM
Time for a new amp like DYohn said.
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That's my opinion. Take it, leave it, or correct me.
Posted By: geepherder
Date Posted: December 31, 2005 at 8:12 AM
Yes, if it's the amp just get a new one, but try swapping the RCA's first and see if the problem switches sides or not. If it does, there's a problem with the RCA's or the source unit. However, being a Legacy, I bet it's the amp.
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My ex once told me I have a perfect face for radio.
Posted By: xandax
Date Posted: December 31, 2005 at 10:50 AM
Ok i'll try swapping the RCA's like you said. But the deal was off Ebay so what can you expect. If I get a mono amp what will that change ?
Posted By: kirktcashalini
Date Posted: December 31, 2005 at 11:14 AM
try switching the RCAs, where the subwoofer wires hook up to the amp. see if you can get the non working subwoofer working, by any means possible before deciding it is an amp ang getting another one. If both subwoofers work fine then it may be worth looking into a mono amp.. some amps are pretty inexpensive, it doesnt look like your into really high end stuff, but you can get some pretty good performance out of the budget amps nowadays. technology is sweeeeet  ------------- 99 Blazer LT. Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)
Posted By: geepherder
Date Posted: January 01, 2006 at 9:50 AM
A mono amp is more efficient and only has one output, so if one sub quits, you know it's either the sub or the wiring, not the amp.
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My ex once told me I have a perfect face for radio.
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