Kicker 53KEY2004 KEY200.4 4x50W Smart 4-Channel Amplifier with Auto-EQ/DSP

Highlights Compact four-channel car amplifier with built-in AI-driven digital signal processing 50 watts RMS x 4 at 4 ohms (200 watts total) One-button automatic tuning with 40-band EQ, time alignment, level adjustment, and speaker-size detection FIT2 integration for use with nearly every factory or aftermarket radio Compatible with vehicle start-stop systems Features Included calibration microphone and selector switch Defeatable bi-amp mode, automatic compression, and KICKER EQ preset Automatic time alignment and speaker-size detection 24 dB/octave crossovers Selectable high-pass filter: Off, 60 Hz, 80 Hz, or 120 Hz Turn-on via remote 12-volt signal or DC offset Specifications Model 53KEY2004 Series KEY200.4 Channels 4 RMS Power 50W x 4 at 4 ohms Minimum Speaker Impedance 4 ohms per channel Frequency Response 20 Hz–20 kHz, +0/−1 dB Input Sensitivity High level: 250 mV–10 V Signal-to-Noise Ratio >90 dB, A-weighted, referenced to rated power Active Crossover Off, 60, 80, or 120 Hz; 24 dB/octave Dimensions (H x W x L) 1-11/16 x 2-3/4 x 7-3/8 in (4.3 x 7 x 18.7 cm) What's in the Box KEY200.4 four-channel amplifier Calibration microphone Microphone cable with selector switch Signal-input harness Power/speaker harness Fuse holder and 20-amp fuse Microphone headrest mount Manual, customer information card, and installation hardware Fitment & Installation Notes Universal car-audio amplifier; this is not a vehicle-specific product. Designed for factory or aftermarket radios and four-speaker or bi-amped component systems. Use speakers rated at 4 ohms or higher per channel. Professional installation is recommended.