I am the only owner. Purchased 4 1/2 years ago.Power, at 175 watts per channel into an 8ohm load, is provided by an oversized dual-mono power supply with Class A power output to 5 watts. Power is transferred and regulated by a custom shielded twin mono transformer design – MOON maintains its super-low thermal, electrical, and magnetic loss gives excellent regulation, improved power transfer, and increased current speed.Discrete Power supply for amp and preamp sectionLine level out is actually pre-out. I ran a powered sub off of this output.Analogue inputs: Four single-ended line-level inputs (via RCA), one balanced input (via XLR)Analogue outputs: Lline-level pre-out (via RCA), IR, RS232 power control, tape monitor loop (via RCA), 12v trigger, SimLink loopInput impedance: 23.7k?Power Output: 175Wpc @ 8?Distortion: THD (20Hz–20kHz @ 1W) 0.015%; (20Hz–20kHz @ 125W) 0.04%Signal to Noise Ratio: Preamplifier (20Hz–20kHz) 120dB;Amplifier (20Hz–20kHz @ 125W) 105dBDimensions (H×W×D): 140 × 476 × 460mmShipping to the Continental USNo International Shipping Original shipping inner and outer box Basic Power Cable