Benchmark AHB2 Specs Output Power 1 kHz, < 0.0003% THD+N 100 W/channel into 8 ?, both channels driven 130 W/channel into 6 ?, both channels driven 190 W/channel into 4 ?, both channels driven 240 W/channel into 3 ?, both channels driven 200 W Bridged Mono into 16 ? 380 W Bridged Mono into 8 ? 480 W Bridged Mono into 6 ? Input Sensitivity Low-Gain: 22 dBu (9.8 Vrms) Mid-Gain: 14.2 dBu (4 Vrms) High-Gain: 8.2 dBu (2 Vrms) Input Impedance 50 k?, normal mode 1 M?, common mode Triggers 12 VDC, 200 mA current-limited output of remote device VIL: 1.26 V, VIH: 2.7 V (input responds to 3.3 V logic and higher) Input Voltage Range -0.3 to 30 VDC Input Impedance 20 k? Cross Talk Better than -115 dB at 1 kHz Better than -92 dB at 20 kHz Frequency Response Better than 0.1 Hz to 200 kHz, +0/-3 dB -0.01 dB at 20 Hz, -0.17 dB at 20 kHz, 8? Load -0.23 dB at 20 Hz, -0.32 dB at 20 kHz, 4? Load Input CMRR 80 dB at 20 Hz, typical 80 dB at 1 kHz, typical 65 dB at 20 kHz, typical Maximum Output Current 18 A per channel, both channels driven 18 A protection shut-down threshold Signal-to-Noise Ratio 132 dB A-weighted, Stereo Mode 135 dB A-weighted, Bridged Mono 130 dB Unweighted, 20 Hz to 20 kHz, Stereo Mode 133 dB Unweighted, 20 Hz to 20 kHz, Bridged Mono THD+N 1 kHz, 80 kHz LPF, at full rated output into any rated load Stereo Mode: < -118 dB (< 0.00013%) Mono Mode: < -118 dB (< 0.00013%) THD 1 kHz, 20 kHz LPF, at full rated output into any rated load Stereo Mode: < -119 dB (< 0.00011%) Mono Mode: < -120 dB (< 0.00010%) Cooling Passive heat sinks Power Requirements 100 to 120 VAC ± 10%, 8 A, 50 - 60 Hz 220 to 240 VAC ± 10%, 8 A, 50 - 60 Hz Dimensions 19.0 x 3.9 x 9.3" (48.3 x 9.9 x 23.7 cm) including feet and binding posts Weight 13.5 lb (6.1 kg) Packaging Info Package Weight 16.535 lb Box Dimensions (LxWxH) 23 x 13.6 x 7.1"