Analog Inputs: XLR (balanced), RCA (unbalanced) Input impedance 20 kΩ Input trimming 0 dB to -5.5 dB in 0.5 dB steps Input sensitivity 8 dBu Loudspeaker Outputs: Binding posts with 4 mm ø cable hole (screwable) and banana plug Output power (RMS, 2 Ω) 2 x 420 W Harmonic distortion (1 kHz, 2 Ω) < 0.07 % Output power (RMS, 4 Ω) 2 x 370 W Harmonic distortion (1 kHz, 4 Ω) < 0.06 % Output power (RMS, 8 Ω) 2 x 200 W Harmonic distortion (1 kHz, 8 Ω) < 0.04 % Output voltage (Peak-to-Peak) 112 V Output voltage (RMS) 40.2 V Output impedance (20 Hz – 20 kHz) < 0.035 Ω Frequency range (-3dB) 10 Hz – 80 kHz Amplification gain 26 dB Damping factor (1 kHz, 8 Ω) > 280 Noise (A-weighted) -123 dB Internal Linear Power Supply with Shielded Toroidal Transformer Toroidal transformer 866 VA Operating voltage (Input stage) +/- 60 V Operating voltage (power stage) +/- 64 V Operating voltage for relays, LEDs, AMP CTL + 12 V Mains Power Supply Mains voltage (selectable, see fuse chamber) 230 V AC / 50 Hz; 115 V AC / 60 Hz Fuse 230 V T 4 A Fuse 115 V T 8 A Power consumption max. 900 VA Idle power consumption 20 W Stand-by power consumption < 0.3 W Dimensions & Weight W x H x D (width x height incl. feet x depth) 278 x 114 x 345 mm 11 x 4.5 x 13.6 inch Unit weight 14.6 kg 32.2 lbs Shipping weight 15.8 kg 34.4 lbs