I bought this amp last year as I had used Quested speakers in the past (MC2 and Quested are part of the same group of companies) and was interested to hear whether a "Pro" amp would have anything more inciteful to offer than my Linn set up... Well it was certainly more powerful! driving my PMC LB1s as I had never heard them play before... Huge improvement in Bass and better drive and control.... Entertaining and involving to my ears. But sadly, I must make space and this amp has to go. £350 plus shipping. Paypal or cash on collection from W. London is ok. [EMAIL="zen33457@zen.co.uk"]zen33457@zen.co.uk[/EMAIL] (mike) I found these specs on the web: Output Power (Watts RMS) per channel : 8 ohms @ 1kHz: 425 4 ohms @ 1kHz: 750 2 ohms @ 1kHz: 1100 Mono Bridged 8 ohms @ 1kHz: 1500 4 ohms @ 1kHz: 2300 THD @ Rated Power 4 ohms 1 kHz: < 0.005% 20Hz - 20kHz: < 0.03% Input CMRR: > 90 dB Hum & Noise: -105 dB Gain: 31dB Sensitivity for rated output, 4 ohms: +7dBu (1.73v) Damping Factor 1 kHz, 8 ohms: > 400 Frequency Response: 20Hz-20kHz +0/-0.5 dB Input Impedance (actively balanced): 10k ohms Dimensions - 2U(mm): 88 x 480 x 410 Weight: 21kg Power Requirement: 230 VAC @ 10.0 amps max