Rockford Fosgate Punch 400 Watt Full-Range 4-Channel Amplifier

"Upgrade your car audio system with the Rockford PBR400X4D, a compact 4-channel amplifier designed for full-range stereo front/rear systems. Powered by Rockford Fosgate's innovative Boosted Rail Technology (BRT), this amplifier delivers 400 Watts of clean power while maintaining an ultra-efficient design. Plus, its variable hi-level DC offset turn-on circuit ensures seamless integration into any OEM system, making installation a breeze.