The 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. FEATURES AT A GLANCE 12dB/octave Butterworth crossover Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator) Features C.L.E.A.N. Set-up High level input capable with Auto Turn-On circuit On-board Punch EQ with +18dB boost @ 45Hz RCA pass-thru outputs Short circuit protection Over current protection Marine grade 2-part epoxy coated PCB Cast aluminum heatsink Muted turn on Marine grade stainless steel hardware Stealth top mounted control panel 2-Year Warranty