I was curious to see if anyone could diagnos my problem. I just installed a 4 channel amp to my setup as well as wiring a pair of components to it. My set up is as follows, I have 4 gauge running to an inline fuse (not sure how many amps the fuse is) that runs to a fused distribution block with 2 60 amp fuses, then it is split into 2 8 gauge wires one goes to a self amplified 250 watt sub, and another goes to a 600 watt 4 channel amp. It worked great at 1st, but now the sound will just go off unexpectadly, like ill be driving and the amp and the sub will go silent and there will be no power to them, The head unit is fine and is playing, but there is no sound, every now and then it will go out, but usually when i start the car it doesnt work and then after i drive for like a min the amps turn on. Id love some help you guys!

 

check and make sure that none of ur speakers are blown...blown speakers wil lcause amps to mysteriously shut down and come back on

 

will it cause both amps to shut off and come back on? how will i know if they are blown, they are rated a higher than the amp will put out?

 

If I were you, the first thing I would check for is a dirty battery connection. A lot of times the battery terminals will corrode with time. I would pull the wires going to the battery terminal and wire brush everything, then reinstall. The other thing to check is to make sure you have a good ground going to the amp. Lastly, check the fuses, although it doesn't sound like a fuse problem, because if it was, then the amp would go off and stay off, not shut off then turn back on.