Stay away from the nad

I owned a great NAD integrated I bought new in 1997. It did end up in the shop a couple of times. It sounded great when it worked.

donjr,
Of course. With the right interconnects nad can sound very good but their reliability is terrible. I live in New York. Service centers charge $150.00+per hour for their service plus parts, if necessary.
It is not normal that 3 amplifiers failed in five years with the moderate usage.

+1 to bad NAD quality.

NAD M51 DAC, after about 1.5 years of use USB-in stops working (others works). Service said it's motherboard issue and price to repair comparable with the new unit.

I concur with the panel that NAD took a big hit when it junk-sourced to china. I wanted to buy into the Master Series, changed my mind quickly due to reported QC issues.  The older NAD from 80's and 90's is very good in comparison.

I have had a number of NAD products, amps, preamp, tape deck, receiver and none had ever failed.   A few years ago I bought a M51 DAC and it took a dump during a firmware update after only three weeks of use.  Was it my fault? Bad firmware? Bad hardware ?  Who knows but NAD sent another one to Spearit to for an exchange.  They could have easily said send it in for repair,  but they didn't .   I would buy another NAD based on that experience and how great that DAC sounds.