B-Stock, Benchmark HPA4 Black; headphone amplifier; Preamplifier with balanced and unbalanced inputs and outputs for high requirements; with THX Achromatic Audio Amplifier (AAA) technology; for a realistic and fatigue-free listening experience; precise 256-step, fully balanced relay gain control in 0.5dB steps; 100% analog; with touch screen for easy access to functions such as balance control, input level offset, input name, dim function, remote, etc.; headphone outputs: 1x TRS (6.3mm, jack), 1x XLR (4-pin); THD < -125dB (0.00006%); signal-to-noise ratio: > 135dB (A-weighted); frequency response: -3dB @ 0.1Hz and 500kHz; output impedance: near 0Ohm; max. Output power: 6W at 16Ohms; Crosstalk: < -133dB @ 1kHz, -115dB @ 10kHz (XLR4); Connectors: 2x stereo line input (balanced, XLR), 2x stereo line input (unbalanced, RCA); 1x stereo line output (balanced, XLR); 1x stereo line output (unbalanced, RCA); 1x mono sum output (balanced, XLR); 2x bidirectional 12V trigger connections; Balanced line outputs: distortion < -125dB (0.00006%); signal-to-noise ratio: 137dB (A-weighted); frequency response: -3dB @ 0.1Hz and 500kHz; Output impedance: 60Ohms; Maximum input and output voltage: 20Vrms (+28dBu); Crosstalk: < -133dB @ 1kHz, -116dB @ 10kHz; Power requirement (nominal): 100 - 240VAC, 50 - 60Hz; Protection systems: DC and short-circuit detection, overcurrent, overvoltage and thermal protection; IR remote for control with optional Benchmark remote control (item 501400); dimensions including feet (W x H x D): 22 x 10 x 21cm; weight: approx. 3,7kg; colour: black, B-Stock with full warranty, may have slight traces of use
