Excerpt: hey how yas goin. i bought 2 of the alpine type r 12` subs. im runningthem of alpine mrd m 500 mono power amp, i can tell you now, they hammer.ive got them in the back of a 98 lancer coupe. my entire car shakes. irecommend that if you dont have a head unit with sub level control, thatyou get their remote amplifier controller, for 200 bucks aus, itsdefinetly worth it. ive got them in a dual 1 cubic box. but i have beentold that they go alot louder in a smaller box.