well i actually have experience with the premium 12's and out of all the Subs and stuff i owned which has been some outstanding subs i must say that these Subs REALLY POUND! seriously i were surprised myself and they take TONS of power! ive had 2 12's in 6.6cubes tuned to 30hz ran off an Kicker KX 2500.1 in my tahoe and it was Surprisingly Loud! actually tickle my throat a little bit! ive also ran these 12's free air on my old Soundstream XXX6500 and they took it playing music. till this day i still have these subs and they still pound. i only have 2 things that i dont like about the subs. the tinsel lead breaks easy and the lows from the subs ****! i will upload pictures of the woofers