I have a flawless NAD M22 amplifier. It's been in a closed and ventilated cabinet driving the front channels of a surround sound A/V setup. Gently used, carefully protected. I'll post actual pictures shortly. For now the stock photos are not far from the mark, it's clean as can be. If you don't know about this amp, it's a fantastic piece of gear, high Class B from Stereophile:. "From his test bench, JA reported that the M22 delivered more power than specified, and was so low in noise that he had to alter his test regimen to ensure that he was measuring actual distortion—which was itself very low. His conclusion: 'It is the very model of a modern class-D amplifier!' A 'slight loss of delicacy' keeps the M22 from Class A, feels KR."
Take a look at the links:
The Absolute Sound: http://bit.ly/2AEy7Eh
The Ear.net: http://bit.ly/2yCvu5C
What's more, it's compact, light, easily movable, and it runs cool. You can do anything with this amp - fabulous as a pure music unit, perfect for inclusion in an A/V setup, etc. I will pay shipping by Fed Ex ground to addresses in the continental US.