well i found this sub for $120 totally new, yeap i know there are more options and i thought it, but into the 400 RMS i think is a nice choice . anyways i have already bought it , and i have another subs : one 12" mmats p2.5 , one 12" Re Audio SE series and one 12" diamond audio D6 , dont worry all are used in differents cars. I assume that depends more on the type and manufacture talkin