Why aren’t my subs playing

I have 2 p2 Rockford fostgate 12s hooked up to a renegade 1000watt amp. I was listening to music & it just went out. Amp isn’t in protection mode @ all. No fuses are blowed. I replaced rca jacks & my LOC box. Still no sound. I did notice when I detached my speaker wires from box, I got a big spark. Is it possible that my voice could have went out in my subs or is it a wire somewhere? If I turn it up I can hear the lows but when bass hits it distorts. Get back w/ me soon.