Question about Rockford Fosgate Punch 401S Car Audio Amplifier
I bought a farad cap, so my amp would get more power. Cause my lights were dimming and stuff. After I hooked the cap up to the amp some weird sounds started coming out of the subs. The noise is a real high pitched sound. What can I do to fix this?
I third it, check grounds and make sure you have good solid connection to metal, also what you're hearing is probably alternator noise, you might consider upgrading it, since it's obviously underpowered for your application, a cap is only a bandaid in the long run.
Posted on Jul 20, 2009
It sound like you have a bad connection somewhere...Check your ground cables and make sure nothing has been cross wired.
Posted on Jul 19, 2009
I would say a bad ground is giving you alternator noise through your subs. Also make sure your source unit has a good ground.
Posted on Nov 02, 2009
Sounds like a bad earth recheck all cables
Posted on Jul 14, 2009
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Posted on Jan 02, 2017
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