5/4/3-Channel Amplifier D Class Premium Amplifier Advantages: D Class amplifier: 5 output channels Stable under 2 Ohms High power and dynamic reserve (1 200W max) Audio Mos-Fets – Optimized efficiency Subwoofer remote control supplied CEA Power (4 Ohms) 4×75 Wrms + 1×420 Wrms Maximum Power (2 Ohms) 4x120Wrms + 1×720 Wrms Maximum Power (Ch 1-4 bridged at 4 Ohms + Ch 5 at 2 Ohms) 2x240Wrms + 720 Wrms Bandwidth 10Hz–20kHz Total Harmonic Distortion 0.03% SNR (1W/A) 75 dBA Low-Pass Filter Ch 1-4 50Hz-500Hz Ch 5 (Subwoofer): Subsonic Filter (High-pass) 10Hz-50Hz+ Ch 5 (Subwoofer): Low-pass filter 50Hz-250Hz Ch 5 Bass Boost 45Hz / 0 to 12dB Phase adjustable from 0 to 180° For channel 5 Copy Mode: (6 CH / 4 CH / 2 CH) Full Range Mode: Protections Short Circuit, low impedance, reversal of polarity, DC, power drop, heat protection Weight 9lbs (4.1kg) Dimensions(HxLxD) 13-17/64″ x 2-1/4″ x 6-57/64″ (337 x 175 x 57mm)