The AudioControl EPICBIGFOUR is a high-performance 4-channel Class-D amplifier engineered to deliver massive power, exceptional sound quality, and compact installation flexibility. Designed as part of AudioControl’s EPIC Series lineup, the EPICBIGFOUR produces up to 1400 watts RMS while maintaining outstanding efficiency and thermal performance in a compact chassis. Built with high-current 2-ohm stable architecture, precision Linkwitz-Riley crossovers, and smart auto-reset protection circuitry, the EPICBIGFOUR is ideal for powering high-output speakers, pro audio systems, motorcycles, boats, and advanced car audio builds. The compact footprint makes installation easy in trucks, SUVs, motorcycles, and tight custom installations. Features High-power 4-channel Class-D amplifier Compact EPIC Series chassis High-current 2-ohm stable design Smart auto-reset protection circuitry Precision Linkwitz-Riley crossovers High-pass & low-pass filter controls Compact thermally efficient design Heavy-duty direct wire terminals Hex-screw power & speaker terminals Ultra-low idle current draw High signal-to-noise performance Perfect for full-range speaker systems Compatible with Epicenter bass restoration processors Specifications Amplifier Type: 4-Channel Class-D RMS Power Output: 200W x 4 @ 4 Ohms 350W x 4 @ 2 Ohms 650W x 2 Bridged @ 4 Ohms Total RMS Power: 1400 Watts RMS Frequency Response: 10Hz – 22kHz Signal-to-Noise Ratio: 89 dB Total Harmonic Distortion (THD): 1% High-Pass Filter: 50Hz – 5000Hz Low-Pass Filter: 50Hz – 5000Hz Crossover Slope: 12dB/Octave Linkwitz-Riley Recommended Power Wire: 4 Gauge Fuse Rating: 150A Dimensions: 10.56” L 6.1” W 2.01” H Included In The Box EPICBIGFOUR amplifier Mounting hardware User manual