Rockford Fosgate Punch PBR500X1
Compact mono subwoofer amplifier — 500 watts RMS x 1 at 1 ohm
GENERAL FEATURES:
mono subwoofer amplifier
175 watts RMS x 1 at 4 ohms (300 watts RMS x 1 at 2 ohms)
500 watts RMS x 1 at 1 ohm
CEA-2006 compliant
Boosted Rail amp technology
Dynamic Thermal Management cooling system
variable low-pass filter (35-250 Hz, 12 dB/octave)
differential-balanced inputs eliminate noise from your vehicle's electrical system
preamp and speaker-level inputs
optional wired remote bass boost (0-18 dB at 45 Hz)
8-gauge power and ground leads and an 80-amp fuse recommended — wiring and hardware not included with amplifier
no onboard fuses — when installing multiple amps in a system, an additional 80-amp in-line fuse between the distribution block and the amplifier is recommended
8-5/8"W x 1-9/16"H x 4-1/4"D
 
It's unbelievable how small and powerful this amp is. Rockford Fosgate's PBR500X1 mono amp can drive up to 500 watts RMS into a 1-ohm load, allowing you to power multiple subs to get more bass. And this Punch Class BR amplifier generates this power from a very tiny case — literally the size of your hand.
Boosted Rail (BR) amp technology uses capacitors and high-speed circuitry to boost the amp's power supply voltage when needed, so it can handle massive 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.