Excellent, musical amp based upon Bruno Putzey’s Hypex module built to NAD’s specifications. Plenty of power – 250 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.003% THD. Driving B&W 803D3, which I believe would be considered a “revealing” speaker, provides a deep, spacious and musical presentation.
Raised by a loving, non-smoking family. Used, but looks like new. No dents, scratches, etc. Original box, power cords, instructions, footers and manual (on thumb drive) are included. My original impressions are here
https://www.crutchfield.com/p_745M22/NAD-Masters-Series-M22.html – seventh one (“M22 is a great value”) – and haven’t changed. Excerpt: “As others have said, this is an audiophile-grade amp at a great price. Having a DIY Ncore 400 dual-mono amp, I was familiar with the ultra-low distortion, very efficient, small form factor amp modules. My DIY uses Hypex power supplies. The NAD M22 is better: tighter/deeper bass, even more transparent (lower noise floor) and, overall, more musical. The Ncore is the work of the brilliant Bruno Putzeys, whose modules are used by many high-end manufacturers, including MBL. This amp drives my 86 db (in-)efficient speakers (not an easy load either) to realistic levels. The amp also provides an unprecedented (for my speakers) completed/full presentation at very low volumes. No other amp I've had does this. Use this amp for a couple of weeks before deciding whether it is for you. Its transparency means it will faithfully pass through the signal it is fed. Feed it with an excellent source and you will be rewarded. Easily worth twice the price.”
Operating perfectly.
Why I’m selling: Audio nervosa – started to wonder just how great the B&W would be with a world-class amp, so moving up Bruno’s amp line.
Suggestions: plug it straight into the wall. Use balanced interconnects.
Bonuses: it sips power and uses only 0.5 w in standby, which I suggest you use all the time.
