Pioneer GM-D8604 - 1200 Watts 4 Channel Bridgeable Car Stereo Radio Amp AmplifierPioneer GM D8604 1200 Watts Max 4 Channel Car Stereo Radio Bridgeable Amplifier Pioneer's new extra efficient Class D digital amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM Series Class AB amplifiers. That makes them more versatile in terms of installation as well as performance. Key Features: Maximum Output Power 4 x 200 W (4 Ohm) 4 x 300 W (2 Ohm) 2 x 600 W (4 Ohm bridge) CEA 2006 Power