Just out of curiosity, that driver is rated at 600 watts RMS, and that box is very large, and ported, so how can it be safe to feed it at least a 1000+ watts? I have 2 of those subs in my car in the mfg. spec ported box and am running it off an elemental designs nine.1 amp, so it's seeing at least 1200 watts RMS when I'm running it hard, and it pounds like hell.