Rockford Fosgate KEY 500.1

Product highlights:

• mono subwoofer amplifier
  • 300 watts RMS x 1 at 4 ohms
  • 500 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
  • 4-gauge power and ground leads and an 80-amp fuse recommended
• dimensions: 8-1/2″W x 2″H x 7-3/4″D