I have to get rid of my pioneer 10" sub and i was wondering what i should do.. im on a low budget and my friend offered to give me his old 12" bandpass box. now i could take that and get a cheap 12" sub, or i could go with a 10" and a sealed box... whats gonna make the sub hit harder? i have a crappy earthquake amp rated at 200-300 watts i think... help!!! lol