the SI d2's are nice subs according to their owners...i don't believe i've ever seen a bad review...
also check into soundsplinter's rl-p...i think that would be an excellent option. i am currently running one rl-p12 sealed, in 1.25ft^3, off a hifonics nx750d @ 1 ohm..so roughly feeding it 750 wrms....it is an awesome sub!! u won't be disappointed!
i am currently running one rl-p12 sealed, in 1.25ft^3, off a hifonics nx750d @ 1 ohm..so roughly feeding it 750 wrms....it is an awesome sub!! u won't be disappointed!