Xtant 1044 x2 subwoofer

Xtant 1044 x2 with a rockford fosgate 250m amp. It’s a sealed box built to xtant specs. Amp is rated at 500 watts @2 ohms the sub is rated at 600 watts and 1200 watts peak. Its a dual voice coil wired in parallel. suzuki sidekick 4 awg from battery to amp. cerwin hed1683 speakers in rear planet audio in front sony head unit.