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 10,5 dBu Loudspeaker Outputs: Binding posts with 4 mm ø cable hole (screwable) and banana plug Output power (RMS, 2 Ω) 2 x 550 W Harmonic distortion (1 kHz, 2 Ω) < 0,09 % Output power (RMS, 4 Ω) 2 x 520 W Harmonic distortion (1 kHz, 4 Ω) < 0,09 % Output power (RMS, 8 Ω) 2 x 300 W Harmonic distortion (1 kHz, 8 Ω) < 0,04 % Output voltage (Peak-to-Peak) 160 V Output voltage (RMS) 54,6 V Output impedance (20 Hz – 20 kHz) < 0,031 Ω Frequency range (-3dB) 10 Hz – 80 kHz Amplification gain 26 dB Damping factor (1 kHz, 8 Ω) > 290 Noise (A-weighted) -123 dB Internal Linear Power Supply with Shielded Toroidal Transformer Toroidal transformer 1440 VA Operating voltage (Input stage) +/- 60 V Operating voltage (power stage) +/- 80 V Operating voltage for relays, LEDs, AMP CTL + 12 V Mains Power Supply Mains voltage (selectable, see fuse chamber) 230 V AC / 50; 115 V AC / 60 Hz Fuse 230 V T 6,3 A Fuse 115 V T 10 A Power consumption max. 1440 VA Idle power consumption 50 W Stand-by power consumption < 0,3 W Dimensions & Weight W x H x D (width x height incl. feet x depth) 278 x 205 x 375 mm 10.94 x 8.07 x 14.76 inch Unit weight 25,1 kg 55,3 lbs Shipping weight 29,1 kg 64,2 lbs