I owned NAD equipment for years, loved the sound, an M3/M4/M5 combo my last. I thought it was great equipment, but not very reliable. I had problems with the M3 & M5 when they were new. The M5 kept losing it's programming, had to have that repaired multiple times.
Too bad the parts for the M3 are no longer available, great sounding unit!
Too bad the parts for the M3 are no longer available, great sounding unit!