Kicker 47KEY200.4 Compact 4-channel car amplifier with automatic tuning DSP — 50 watts RMS x 4

Product highlights: 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 vehicle calibration 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 wiring and hardware not included with amplifier 12- or 10-gauge power and ground leads recommended 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