Do you keep your amps and preamps on all the time

I do not leave my stuff on all the time.My amp is high BiAS'd ,but I really do not think it would do harm in shutting it down. I have had it for 12yrs and it has given me great sonics.I do think it does need 20mins to heat up ,but so doies the CDP which I use as a transport now. The CDP gets hotter than my Amp I think.

Having ventilation I do think is important and common sense. Odyssey I think says you should have 2ft. of clearance.I do not believe that stacking is a good thing because of Interference,but I only have 6" of clearance over my amp in order to keep the IC's short between my Passive Pre-Amp.My amp does not use Global Feedback and the shelve above the amp does not get hot so I think it's OK.Any problem with that?

What effect does having amps that have global feedback in their designs state is should be used? I would think that having stuff stacked over amps that use Global feedback would really have a negative effect. What effect does it have if you have something interfering with the field I wonder?

Does anyone have any info on this about Global Feedback designed amp or am I missing something. I do not think I will ever own an amp that uses Global Feedback anyways.All the amps I am intrested in use a DC Servo Loop.

TIA

I keep 'em on all the time except bad weather or trips, but I run SS with relatively low idle consumption. Almost all SS will have no problem being on 24/7 if you don't mind paying the power bill. Tubes are a different matter altogether; running 24/7 will reach lifespan on most tubes within a year or two.

I switch the amps and pre to standby when I go to sleep and work. If I leave them on to much heat is generated and I have to run the AC more.

My electric bill actually went down $6 a month once I started leaving everything on idle 24/7. I'm outta town right now, so the system is down!

I'm running a Bryston 4B-ST now & it only gets hot to the touch, in the 90's when I was a Krell junkie you had to sit naked in your listening room in the summer.

I actually recall talking to a Krell owner who lived in AZ who installed his components in a hall closet w/ long xlr's, then added a window air-conditioner which installed in the closets exterior wall!

Heat does have a whole lot to do with leaving it on!
When I got back into Home Theather in 1999 I picked up a Sony Str-444ES for Dts. The Sony sounded great when it was left on, however once I left it on for 72 hours straight & the A/V rack shelf above smoldered!

The Sony got hotter then any Krell Kst/Ksa of the same wattage! Forget eggs & steaks!!! You could have taken a Video Corespondence Blacksmithing course & use the Sony to bend Horse Shoes!!!

The Sony was dumped for a Denon Avr-4800 w/ a built in fan which served me well for 3 years, on all the time & never an issue.

Does it pay to leave it on 24/7, yes in my case I guess the whole initial firing up pulls a whole lot of juice.

Secondly I enjoy not having to wait to listen, as there is a major sonic difference having SS equipment on 24/7!!!

As long as you components Heat isn't a Fire Hazzard!

Thanks for the input guys. I'll be leaving mine on from now on unless like Audiobugged, my rack or system heats up so much to cause damage to anything. My CD player has a display on and off switch so I"ll leave the display off when not in use.