Rca input problem

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=52689
Printed Date: May 20, 2024 at 11:34 PM

Topic: Rca input problem

Posted By: theyoungone
Subject: Rca input problem
Date Posted: March 27, 2005 at 4:51 PM

Ok, i have a p3002 rockford fosgate amp 75wattsx2 and noticed of the speakers wasnt bumpin g, so i checked it out and the inpu on one of the channels isnt working on my amp, i was wondering if theres any way to fix this, i have a good soldering gun and am ready to try anything cause i just got a new deck and i can hear my system at full potential!!! please help

Replies:

Posted By: auex
Date Posted: March 27, 2005 at 4:53 PM

If the amp is under warranty then utilize it. If you want to open the amp up and see if the connection where the rca input meets the board then go ahead. If this connection is fine then there is probably nothing you can do. This is of course assuming you made sure it wasn't anything else causing the problem(wiring or faulty speaker).

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Posted By: theyoungone
Date Posted: March 27, 2005 at 4:57 PM

ist not under warranty anymore, but i did take it apart and all the connections were fine, but i know its not the cable cause both of them work on the on good jack

Posted By: geepherder
Date Posted: March 27, 2005 at 6:33 PM

It's possible you have a problem on the output side as well. Have you also tried switching speaker leads at the amp to verify your problem?

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Posted By: theyoungone
Date Posted: March 27, 2005 at 8:14 PM

what do you mean?

Posted By: geepherder
Date Posted: March 27, 2005 at 9:33 PM

As you first stated, you've eliminated the RCA's and the head unit as the possible problem.

The other possibilities could be the amp, the wiring of the speakers, or the speakers themselves. My point was that this doesn't mean it's the input side of the amp with the problem- it could also be the output side as well.

Here's something else to check before you write the problem off as the amp itself: Switch the speaker wires at the amp. Hook up the speaker that isn't playing up to where the speaker that is playing is connected, and vice versa.

Now if the problem switches to the other speaker, then the problem is definitely amp related. However, if the problem stays with the original speaker, then it's in the wiring, or the speaker itself. Time to pull out the multimeter and take some more measurements. It's possible the connections have come loose at the speaker, or you've blown a voice coil.

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My ex once told me I have a perfect face for radio.