Nad M3 non repairable

My M3 had the exact same problem. Blown Power board, not repairable. Only it never made it to 10 years. It’s a beautiful piece. Huge heat sinks, velvety smooth volume control. 2x mono design, Extremely versitle crossover and sub out piece of garbage. A dealer near me warned me to stay away from NAD and I didn’t listen. The factory kept it for 6 months before telling me to pound sand.

If you’re thinking about buying NAD think again. They are trash and don’t back up their products. Other than this I have no strong feelings on the matter.

..After taking the journey I have, my feeling is that an old style tube amplifiers and preamplifiers represent the safest investment when it comes to electronics.

That’s exactly what I did. I abandoned digital ss amps and went all tube point to point wiring - easily repairable integrated. Couldn’t be happier. NAD is the poster child for tube amps.