Bought an NAD 3020. Question for the experts here!

34dean,

Perhaps I should just turn it on an hour or so before I know I will be listening and then turn off each time?

Good Plan. Maybe leave it on a bit more once you know it is working properly, post rebuild, and you are sure it is safe. Especially leave it powered on a bit longer if you know you are going to sit down to do some critical listening.

Enjoy the amp......

34dean,

If I recall correctly, the amp you bought was just fully refurbished, correct? Because it was just redone, I wouldn't leave it on when if I we're not around to keep an eye on it, at least for a few weeks. After that, if you're certain it is in good/safe operating condition, I would leave it on days when you think you'll be listening to it and turn it off when you are going to be away for day/days at a time.

Not sure there is any correct answer. You might want to do a little experimenting and see how it sounds cold/warm/hot and make a sound quality decision. If there is no obvious sound quality difference, turn it off when not in use.

Enjoy your new (old) amp.......