4 channel amp wiring
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=110454
Printed Date: May 15, 2024 at 5:20 PM
Topic: 4 channel amp wiring
Posted By: bigshooz1988
Subject: 4 channel amp wiring
Date Posted: January 08, 2009 at 9:42 AM
I tried to wire 2 amps. One is a 2 channel amp for my subs, and the other is a 4 channel that i have for mids and his. When I start my car there is a loud whining noise coming from the speakers at any volume.If i disconnect the 4 channel amp. the loud whining noise is gone. Can somebody help, im pretty sure on how to wire multiple amps, but if somebody could help me out, i'd appreciate it.
Replies:
Posted By: kassdog
Date Posted: January 08, 2009 at 11:06 AM
Its probably the altenator whine. Does the whine increase with acceleration. If so try regrounding it. Also what equiptment are you using and where is it grounded at.
Posted By: i am an idiot
Date Posted: January 08, 2009 at 1:56 PM
Is it maybe a Pioneer radio?
Posted By: i am an idiot
Date Posted: January 08, 2009 at 5:57 PM
Posted By: bigshooz1988
Date Posted: January 08, 2009 at 10:56 PM
it is a pioneer 5900IB series. why is there something wrong with pioneers decks?
Posted By: xplorin16
Date Posted: January 08, 2009 at 11:36 PM
Click the link it should help, i love pioneers and have come to terms with that darn micro fuse.
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Advanced MECP
Posted By: i am an idiot
Date Posted: January 09, 2009 at 1:40 AM
There is no problem with Pioneer radios. The problem is that NOBODY follows the first line of the installation instructions. 1. Remove the negative battery cable from the battery.
Posted By: bigshooz1988
Date Posted: January 09, 2009 at 7:19 AM
is it possible that the internal amp is blown? I have output 2 my subs but nothin with my speakers. the volume can be all the way up and there will be nothin comin from the speakers but the subs r goin.
Posted By: i am an idiot
Date Posted: January 09, 2009 at 6:40 PM
I thought you had a 4 channel amp on your highs. It is not uncommon for the Output chip to be taken out due to improper installation. Are the speakers connected to the 4 channel amp or to the deck?
Posted By: bigshooz1988
Date Posted: January 09, 2009 at 10:25 PM
i have the speakers(front and back speakers) wired to the deck and then to the 4 channel amp. is that wrong? i thought that's how it was supposed to be done, if not please help me out!
Posted By: i am an idiot
Date Posted: January 10, 2009 at 5:55 AM
They should be connected to only the amp. There is a real good chance you need a new output chip in the radio, and could have possibly taken the amp out as well. Disconnect the speaker wires from the amp and insulate the ends so they do not touch anything. Turn your radio on and see if it has output. If so consider yourself the luckiest person alive. If it does not have output, cut the speaker wires from the radio harness, insulate the ends that go to the radio. (I guess that is probably not necessary since that would only protect the output chip, but not a bad habit to get into) Connect the speaker wires back to the amp and do whatever has to be done to connect those wires to the speakers. Turn it on and try it again. It will probably becheaper to get the amp repaired than the radio. The output chip for that deck will cost you about 50 dollars. That is just the price of the part. If the amp does not work I can possibly help you repair it.
Posted By: bigshooz1988
Date Posted: January 10, 2009 at 11:00 PM
i tried the 4 channel amp to power the subs and it worked. i disconnected all the speakers and tried connecting each one by itself and checking to see if any sound came out and there was nothing. so maybe it's the output chip. so i should try to connect the speakers to the 4 channel amp and then just run the rcas from the deck to the amp and see if anything works? please reply , it would help me out a lot. thanks.
Posted By: i am an idiot
Date Posted: January 10, 2009 at 11:13 PM
Yes, connect the RCA cables to the amp and also connect the speakers to the amp.
Posted By: bigshooz1988
Date Posted: January 11, 2009 at 12:22 AM
ok thanks, i'll let u know what happens on monday.thanks again.
Posted By: taurus3
Date Posted: January 11, 2009 at 12:33 AM
ensure there is no loose connections in the wire, also use speaker negative to the speaker from the head set.
Posted By: i am an idiot
Date Posted: January 11, 2009 at 12:50 AM
Do not connect any speaker wire from the amp to the radio. That is how we got here.
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