theyll take more than theitr rated power which is 400 watts per sub.but they are efficient and can bang hard on 200 to 250 per sub.put them in a ported box and you ll be good.o try to get them online they are cheaper,SONICELECTRONIX.com is kicker authorized and they gotem for 75 each
800 peak watts means nothin. its just a gimmick basically. only pay attention to the rms wattage. and how much power you give it doesn't decide whether your car will rattle. i had a sony 8 running off my headunit just for fun and i heard some rattles.