I installed 2 10 inch 300 watt RMS JL audio subs in a sealed box with a 1500 watt top strong gear amp in my GMC sierra. The subs are 4 ohm wired in parallel to a 2 ohm impedance. the amp is capable of 800 watts at 2 ohms but I have it set to 600. (34.64 Volts). my low pass filer is at 100 hertz...