I posted on this a while back but this is really surprising for you NAD aficionados. I bought a used NAD integrated on Audiogon about a year ago and started to have problems with it playing above a quarter on the volume dial--immediate distortion.
Well, I finally got it to a repair guy who told me my filter caps were 'bone dry', and this on a unit manufactured in 2006??? Seriously! Bad caps on a fairly recent unit? I like the NAD sound but my experiences so far do not bespeak quality. I've seen other units crap out early as well--well not 'this' early!