JL audio RD900/5

Product highlights:
mono subwoofer amplifier
250 watts RMS x 1 at 4 ohms
500 watts RMS x 1 at 2 ohms
Class D amp design with NexD™ switching technology
frequency response: 7-500 Hz
variable low-pass filter (50-500 Hz, 12 dB/octave)
variable bass boost (0-12 dB at 45 Hz)
More Info:
optional RBC-1 wired remote level control
preamp inputs and outputs
differential-balanced inputs prevent noise
speaker-level input via speaker wire-to-RCA adapters
signal-sensing turn-on with speaker-level inputs
wiring, fuse, and hardware not included with amplifier
4-gauge power and ground leads and a 50-amp fuse recommended
dimensions: 9-7/8"W x 2-1/8"H x 7-1/2"D
warranty: 2 years
Our 60-day money-back guarantee
MFR # 98362
What's in the box:
JL Audio JD500/1 owner's manual
Monoblock subwoofer amplifier
2.5mm Hex key
3mm Hex key
Owner's manual