Kicker 47KEY500.1 Compact mono subwoofer amplifier with automatic tuning DSP — 500 watts RMS at 1 ohm

Product info:

• 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
• Class D amp technology
• KEY Auto Setup customizes the signal for your stereo system
  • test tones available from Kicker.com
  • automatic adjustments include bass restoration and EQ
• variable low-pass filter (40-160 Hz, 24 dB/octave)
• variable subsonic filter (10-40 Hz, 24 dB/octave)

More Info:

• preamp and speaker-level inputs
  • DC offset sensing turn-on with speaker-level inputs
• Radio-Detect circuit supplies speaker load for receiver to sense
• wiring, fuse, and hardware not included with amplifier
  • 8-gauge power and ground leads and a 60-A fuse recommended
• dimensions: 8-3/16"W x 1-3/4"H x 3-11/16"D
• warranty: 2 years