Question about Clarion APX401.2 Car Audio Amplifier

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400 watt amplifier not working

I have two clarion APX401.2 amps powering a 6 speaker and 1 subwoofer system on my boat (all clarion) and when I took my boat out to pretty choppy water I think they they may have got a little wet. Now, if I try to play a cd only the bass works and none of the speakers play any noise. The green power light on the speaker amp flashes about once per 2 seconds and a weird noise comes out of the speakers at the same tempo as the light flashing. Can someone please help me try to fix this problem before I have to replace the amp? Thank you. Brian

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Brian Neathery

Brian Neathery

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Disconnect all the speaker wires from the amplifier that runs the 6-speaker system. Switch off the amplifier or disconnect the remote turn-on wire, then re-connect it. Does the power light still flash with no speakers connected? If so, your amplifier is probably damaged. If not, then connect one speaker and see if it plays. If it doesn't, disconnect the first speaker and connect a different one. If the first speaker plays, continue connecting the rest of the speakers until you find the one that's causing the problem.

Posted on Mar 07, 2007

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Need amp
Hi and welcome to FixYa,

It would be safe to use an amplifier slightly lower than the maximum rating of the speaker. In this particular case, 350 watts or lower would be just about right for each. If you are wiring the 2 subs in parallel and powering them with a single channel amp, then a 700 watt bridged would also work.

Good luck and thank you for using FixYa.

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