i work for a local audio store and we just picked up cadence. the reps car was all cadence and it pounded like crazy 8 10's and 4 amps i think. the beast dr's are what i want 15's (1200wrms and 4000max -spl burps only) and the cadence z7000 1500x1wrms at 1 ohm. but i have never herd these subs...