Product highlights:

• Featured in our article: Best 4-channel car amplifiers for 2025

• 4-channel car amplifier/sound processor

• 50 watts RMS x 4 at 4 ohms

• CTA-2006 compliant

• non-bridgeable — minimum impedance of 4 ohms per channel

• Class D amp technology

• KEY Auto Setup customizes the signal for your vehiclecalibration mic and activation button included
  pink noise test tones available from Kicker.com
  automatic adjustments include 40-band EQ, 24 dB/octave crossover filters, time alignment

• Bi-Amp mode applies tweeter/woofer crossover settings during KEY Auto Setup

• switchable auto compression

• selectable high-pass filters (off, 60, 80, 120 Hz; 24 dB/octave)

More Info:

• automatic limiter with clip lights

• preamp and speaker-level inputs: DC offset sensing turn-on with speaker-level inputs

• Radio-Detect circuit supplies speaker load for receiver to sense

• fuse rating: 20A x 1

• dimensions: 7-3/8"W x 1-11/16"H x 2-3/4"D

• warranty: 2 years

• MFR # 47KEY2004