I never understood the logic to leave equipment on all the time. However I do appreciate the posters that state that their sound is wonderful if equipment is left on. Life is short enough and if this helps make life better and your music is great and this is painless for you, then by all means, leave it on. Except for tube equipment which does have a specific life. equipment that does not have heat issues (class A amps, etc.) really won't have a drastic effect on components. Don't misunderstand me, there will be a long term effect by leaving it on. equipment life will be shortened. But, if it sounds good and it is worth it to you, the by-all-means. It takes my system about 20-30 minutes to have great sound. However, I really haven't noticed bad sound with 10 minutes warm-up. it still sounds great. I typically turn my system on when I know I'm going to do quality listening, go do something else,like cook, open a good bottle of wine and let it breath, get a good book. by then, it is good to listen. experiment. Turn the system on and listen immediately to your favorite music. Take notes. Is it flat, no dimension? how's the sound stage (assuming there was one in the first place), etc. Then next day, turn it on and listen after an hour, to the same music. take notes again. Then, leave it on all night and day and then go back the next day and listen again and take notes. Compare and see if there were major differences. That is a true test. Also, if you can get others to help with the listening test, that would be better.
But, unless you want to replace tubes more often, I would not leave tube equipment on.
enjoy
