id go 4 of em lol or more. its really up 2 u man, look on ebay for like 2 of those really powerful audiobahn amps (i forgot the model number)and wire em 2 each voice coil lol
cant i just start out wit 2 an then get 2 more if i want it louder an say if i frie the 2 coils just sayin havin it 2 loud an on long time i wouls have 2 more would that work j/w but i think 2 amps would do but how many bx1500 can u run 2 it or how many max watts
the problem with it is, that if you get 2 hifonicsbx1500d amps to start with, then you would only runn 1000 watts rms from each amp, when u get 4, you would run 1500 watts rms each