Amp on but no sound

I have 2 amps that dont let sound come through. they both turn on and are not in protect mode. one was working fine until i blew 2 fuses in the amp, and when i put new fuses in it didnt work. power is going through and not in protect, i just have no clue whats wrong witht them. any help? one is a pyle power 4000 watt 2 channel mosfet amp and the other is a clarion pro audio DPX 1001.1 amp

Double check all of your fuses and make sure they are the corrects AMP. Other than that it sounds like the speaker wires came loose somewhere along the line. check on the subs and behind the deck. hope this helps