we all know that Naim devices are to be left switched on for a looong time for best sound results.

What about the standby-mode (n-Vi for example). May I use it without sound degrade or should I leave it completely on (with is a problem because of the fan noise)?

i have left my n/vi on for one week before now it sounded great ie music. i have all so done two days and one day test. i now turn it off at night when i go to bed and turn it on when i am going to use it. it does get better after first cd you can here it it quite nice to here it getting better as it plays in my reason for turning of is on 17month son who thinks its his. what i would do is try and see what works best for your ears .regards munch

margen, i leave mine in stand-by when not in use, how often does your fan come on, if my fan comes on it must be very quite as i have never heard it yet, only fan i can here is from tv-drive,

Image degradation I would say.
On some movies, I noticed with my DVD5 very little noise that disappear after 30 minutes or so ... or may be is it me ?