Kicker 53KEY2004 KEY 4-Channel DSP Smart Amplifier, 4x50W

The KEY200.4 combines a compact 4-channel amplifier with AI-driven DSP to add power while automatically improving clarity, tonality, and soundstage. It delivers 200 watts total (50W x 4 at 4 ohms) and uses the included microphone to configure a 40-band EQ, time alignment, speaker-size detection, and 24dB crossovers. FIT2™ technology provides compatibility with nearly every stock and aftermarket radio, while start/stop vehicle compatibility and remote 12V or DC-offset turn-on simplify integration. Bi-amp capability, auto compression, Kicker EQ preset, and auto time alignment are defeatable. Measuring just 1-11/16" x 2-3/4" x 7-3/8", the KEY200.4 can fit behind a radio, under a seat, or in a trunk. It features a 20Hz–20kHz frequency response and selectable Off, 60, 80, or 120Hz active crossover settings at 24dB/octave. Model: KEY200.4 Amplifier Type: 4-channel power amplifier Power at 4Ω Stereo: 50W x 4 Total Power: 200 watts Microphone / Kicker EQ Button: Included Standard Dimensions (H x W x L): 1-11/16" x 2-3/4" x 7-3/8" Metric Dimensions (H x W x L): 4.3 x 7 x 18.7 cm Frequency Response: 20Hz–20kHz, +0/-1dB Input Sensitivity: High level 250mV–10V Signal-to-Noise Ratio: >90dB, A-weighted, referenced to rated power Active Crossover: Off, 60, 80, or 120Hz; 24dB/octave Equalizer: Automatic 40-band EQ Time Alignment: Automatic, defeatable Bi-Amp Capability: Yes, defeatable Auto Compressor: Defeatable Kicker EQ Preset: Defeatable Auto Level Adjustment: Bi-amp mode only Speaker Size Detection: Automatic High-Pass Filter: 60/80/120Hz, defeatable Turn-On: Remote 12V signal or DC offset Start/Stop Vehicle Compatibility: Yes Integration Technology: FIT2™ (Fail-Safe Integration Technology) Included: 4-channel amplifier, microphone, microphone cable with switch, fuse holder, manual, and installation hardware