you wont kill them,just dont turn the amp all the way up.i had it on 2 memphis mojos,they were 750rms and 1500 max,i had it putting about 2250 per sub,daily for over 2 years and the subs never failed or skiped a beat,i beat the shit out of them too.HAving alot of clean rms power is alot differerent than having alot of distorted crap coming out of an amp