Beware of NAD M3 Fire Hazard

It was the second capacitor from the right side of the amp that blew. 

I uploaded a couple pics
https://ibb.co/1rZtnPGhttps://ibb.co/T1VBM5G

Send your pic to NAD.  Link this thread to NAD, as well.  With luck you may get an appropriate response from them.  In any case, don't plug it in again!

Looking at the service manual again that capacitor is a 22,000 uF 80 volt polarized aluminum electrolytic. As can be expected it is connected to the output of a diode-based full wave rectifier. But based on what you (pwb) were told it sounds like something else failed in the power supply which caused that cap to explode. If so, that something else could have been a lot of things, as there are a great many parts in that circuit.

However, although the schematic is a little hard to interpret I’m fairly certain that the DC voltage appearing across that capacitor in normal operation (and across the other three similar capacitors, each channel having two of them, one for a + voltage and one for a - voltage) is between 70 and 74 volts. If so, that seems to me to be a failure waiting to happen, as a cap should be run at a voltage that is much less than its rating, IMO. Preferably at something like half of the rating.

Regards,
-- Al

I agree with edcyn. NAD needs to know about this.