Rockford P500x1BD

Product highlights:
mono subwoofer amplifier
150 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
Features:
variable low-pass filter filter (50-250 Hz, 12 dB/octave)
selectable subsonic filter (28Hz, 12 dB/octave)
variable PEQ2 bass boost (0-18 dB at 45 Hz)
C.L.E.A.N. gain setup system includes clip lights and link to Rockford Fosgate's setup tones
Class-BD amplifier design
frequency response: 20-250 Hz
Dynamic Thermal Management and MEHSA MOSFET cooling systems
MOSFET power and output stages
preamp inputs and outputs
speaker-level inputs (speaker wire to RCA adapter required)
signal-sensing turn-on with speaker-level inputs eliminate need for remote turn-on lead

More Info:
optional PLC2 wired remote level control with clip light available
4-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
11-1/8"W x 2-7/16"H x 8-13/16"D
warranty: 1 year
Our 60-day money-back guarantee
MFR # P500X1BD

What's in the box:
Rockford Fosgate Punch P500X1bd owner's manual
Mono subwoofer amplifier
Four 1-1/2" Self-tapping screws
2.5mm Allen wrench
Quick setup instructions
Certificate of Performance