Violectric HPA V550, Headphone Amplifier, With remote control for volume, mute, input selection, resampling and output selection, Motorised volume control, Balance control, 3 Analog stereo inputs: 2x cinch (unbalanced), 1x XLR (balanced), 18 +/- dB pre-gain for optimal adaptation to source and headphones, 4 Powerful amplifiers, 6400 mW Pmax at 50 Ohm, 21 V RMS at 600 Ohm, Monitoring of the headphone outputs for DC voltage and overload, Headphone and line-out can be selected separately, Headphone outputs: 2x jack (6.3 mm, unbalanced), 1x XLR (4-pin balanced), Line Outs: 1x RCA L / R (unbalanced), 1x XLR L / R (balanced), 18 +/- dB line-out signal adjustment to downstream devices, 2 Toroidal transformers, Dimensions (W x H x D): 290 x 80 x 248 mm, Weight: approx. 6 kg, Colour: Black, Includes remote control and power cord