Hi I have been using this amp for about a year now and I really like it but a few weeks ago while I was driving listening to some tunes my speakers cut out and only my sub was still playing. I figured it was my remote wire but upon further inspection that was not the problem so I took it apart to take a look at what was going on inside.

However once I got it apart there was no visual evidence or smell inside the amp. It powers up, protection light goes out but no sound comes out of either the front or rear side of the amp. Here is a video I took of it starting up.

Malfunctioning KX800.4 Amp - YouTube

Any suggestions what to look/test for? Thanks.