3 10s should be much tighter than 2 12s, there's less resistance to each piston moving, so it can make much tighter movements, although they should be about the same loudness with the 3 10s being slightly louder depending on the drivers themselves and the whole setup, apples to apples, 2 12"S have about 226 square inches of surface area, 3 10s have 235 square inches. A good sized sealed box has the best dynamic range and cleanest sounding, but isn't for high SPL. Ported and bandpass ported boxes are meant to maximize SPL, most of the time at the sacrifice of sound quality. Although if the tuner really knows his stuff a ported can be pulled off with a relatively flat rolloff(clean smooth sound). Facing you you hear just the subs themselves, facing them towards the back you use your trunk as a psuedo bandpass enclosure, with the trunk acting as the secondary chamber. It makes it louder by resonating through the trunk.
alright thanx illusion... will 3 10's fit in the back seat passthru? and does the subs facing the back seats sound better than facing the rear bumper? im looking for a good sounding system that'll still move air... not a competition SPL setup
bah probably shoulda asked this question in the first place but here goes... could someone write up a quick pros/cons for:
-Facing Back Seats
-Facing Rear Bumper