Rockford Fosgate PBR400X4D Punch 4 Channel 400watt RMS Compact Amplifier

This lightweight packs a punch

Rockford Fosgate's incredibly small Punch PBR400X4D 4-channel amp will put out 50 watts RMS to each of your front and rear speakers, giving you the power to fill your listening space with great-sounding music. You can also run this amp in 2-channel mode to drive a couple of high-performance speakers or subs with up to 200 watts RMS each.

Boosted Rail (BR) amp technology

This Punch Class BR amplifier generates this power from a very tiny case — literally the size of your hand. Boosted Rail amp technology uses capacitors and high-speed circuitry to boost the amp's power supply voltage when needed, so it can handle musical peaks without missing a beat. Rockford Fosgate uses this new technology to create a remarkable amp that fits almost anywhere and delivers powerful sound.

Features that keep you rockin'

The amp also features speaker-level inputs with signal-sensing turn-on, allowing you to connect into almost any system without having to run a turn-on lead back to the receiver. An extruded aluminum heat sink combines with Rockford Fosgate's heat management technology to make sure your tunes keep rockin' — even when you're playing loud.

Easy to set for optimum performance

The PBR400X4D features Rockford Fosgate's C.L.E.A.N. technology (Calibrated Level Eliminates Audible Noise) — a setup system that ensures your music will sound as clean and powerful as possible. Just play the setup CD or a downloaded tone, adjust the receiver volume until a red clip light on the amp goes out, then turn the amp gain up until a blue light comes on. It's that simple. When your receiver reaches maximum clean volume, you'll get maximum clean power from your Punch amp. At quiet listening levels, you'll hear less background noise and more of your music.