A:Answer From what I know which is not a whole lot but the only thing I could guess is that you might be over powering the sub, if the rms rating is above 1 x 2ohm -1250w rms. I am using a 2000.1D Kenwood KAC-9106D it’s max power is 2000w and it’s rms is 1000w 1 x 2ohm, which is perfect for the subs. I can play them harder but not enough to damage the amp or subs. But if your amp does fit within the wattage ratings then maybe you blew a fuse, bc I just got my speaker amp fixed bc I blew a fuse and there was no sound coming out of my speakers. Lastly if that’s not the case then could be a wire is messed up.