I just picked up a Infinity Kappa 12.1d sub and was wondering which route to take with the wiring. The sub is a dvc 4ohm, 350w rms I believe and my amp is a alpine mrd-m1000 which does 500w rms @ 4ohms/1000w rms @ 2ohms. How should I wire the sub up? 2ohms? It's in a sealed box if that matters...