Stay away from the nad

yes, tons of refurbished at various dealers - nad is going to end up like adcom.

djengan,

I suspect that the problem your having is simpler than they say.
Two questions:
Do you live near salt water?
Do you own a tape deck?

The description of the problem does not suggest that it is serious.
I'm guessing you don't use the tape monitor switch. It will eventually cause the audio to "drop out" or drop in volume if it is not used especially if you live near salt water. 

The cure:
Exercise the tape monitor switch a few times and see what happens.
If there is a "tape 2" switch - same thing.

Hope this helps
Roger

Hello Everyone i do like this site a lot 
I've had NAD's for a long time myself i stared off with the 7600 Receiver and the 2600 Amp with a pair of SDA Polk Flagships i think it was inn the 90tee it sounded great the Amp where strapped i guess that was the word used at that time.

And now i have the same Speakers but with pair of S 200 and an S 100 Preamp they all have done me great 

I guess my point is things can happen to any kind of Electronics NAD we make it right i believe
Thanks to all here 

People love NAD your breaking there heart oh boy!!

It has a built in timer :-)