Rockford Fosgate PM500X2 Punch Marine/Powersports 2-Channel AmplifierThe PM500X2 is an excellent way to PUNCH up your sound system without monopolizing your entire trunk that way you have more room for subs! With its massive output stage, this amplifier is best suited for driving a pair of 8 ohm SVC subwoofers or four 2 ohm DVC subwoofers. Remember to utilize the recommended power and speaker cables to optimize power delivery. High level input capable with Auto Turn On circuit RCA pass thru outputs Features C. L. E. A.