Rockford Fosgate R2-250X1
Prime Series mono subwoofer amplifier — 250 watts RMS x 1 at 2 ohms
GENERAL FEATURES:
Give your sub the power it deserves
Rockford Fosgate's Prime Series R2-250X1 amplifier can power your subwoofer with up to 250 watts RMS. You can adjust the low-pass filter, infrasonic filter, and Rockford Fosgate's famous Punch boost to get the best possible bass from the sub and enclosure in your vehicle. 
Setting it up for optimum performance
Rockford Fosgate's C.L.E.A.N. technology (Calibrated Level Eliminates Audible Noise) setup system ensures your bass will sound as clean and powerful as possible. It's a simple system to use — turn it up until the light shows red, then turn it down until the red light goes out. Speaker-level inputs let you hook this amp up to almost any system, even a factory stereo.
Product highlights:
mono subwoofer amplifier
150 watts RMS x 1 at 4 ohms
250 watts RMS x 1 at 2 ohms
CTA-2006 compliant
Class D amplifier design
variable low-pass filter (50-250 Hz, 12 dB/octave)
variable bass boost (0-18 dB at 45 Hz)
variable subsonic filter (15-40 Hz, 12 dB/octave)
More Info:
C.L.E.A.N. gain setup system includes clip lights
wired remote Punch Level Control included
auto remote turn-on
preamp and speaker-level inputs
preamp outputs
wiring, fuse. and hardware not included with amplifier
8-gauge power and ground leads and a 50-amp fuse recommended
dimensions: 8-1/8"W x 2"H x 7-3/4"D
warranty: 1 year