2 mtx jack hammers 250 rms each off of a power acoustiks ts 1440. the amp was not bridged. i had only 300 rms going to each sub. and that with gain set low bass boost low and with deck levels set low. i could of drivin the hell out of the subs. but iwas gona selll them so i said nah. its ok for what it is. that car gona slam bro with new subs i got the rear deck open no speakers