Rockford Fosgate PM500X1bd Marine Subwoofers Differential inputs with high level

Differential inputs with high level auto turn-on feature

The Punch PBR300X2 uses our patented BRT (Boosted Rail Technology) for an ultra efficient design that does not use a switching power supply to generate its rated power

Designed for use with TM400X4ad amplifier

625 in / 245 mm External Depth (D1) 5

Rockford Fosgate PM500X1bd Marine Subwoofers Differential inputs with high levelThe PM500X1bd is a 500 Watt mono amplifier with high dynamic power using Class bd technology and a conformal coated pc board designed for motorsport and marine applications. With its super efficient Class bd circuit topology, the PM500X1bd will drop some serious BASS! Due to its dedicated low frequency response, this amplifier is optimized for mid bass speakers or subwoofers only. No need to worry because its 1 ohm capability will drive a pair of 4