Rockford Fosgate Punch 300S Car Audio Amplifier Logo

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Posted on Jul 11, 2008
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Stopped working I have used my punch 300S for 6x9 loudspeakers in my car lately, and it has worked fine. Yesterday I tried it on 2 subwoofers RF punch HE 10" and there is no sound at all. The LED on the amplifier is on, and everything seems to be ok. I have used this amplifier on these subwoofers before without any problem. I have opened the amplifier, and nothing seems to be burned/broken. I did one mistake when connecting the amplifier, I connected ground on the amplifiers + input, but i discovered it before connecting + on the amplifiers ground input. I have also tried an other amplifier, and it works well, so the CDplayer output and signalcable are ok. Do you have any suggestions? Thanks!

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  • Anonymous May 11, 2010

    Clarify for me please.... Have you tried connecting this amplifier back on the 6x9's? If so what was the result?

  • Anonymous May 11, 2010

    Does the amp work if you switch back to the 6x9's?

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  • Posted on Jun 04, 2009
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Either your amp is blown which it very well could be. or your just hooking something up wrong in the wiring. make sure ur battery wire and small blue amp wire are secure with a good ground

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