Electric Bill

All I know, is compared to similar homes in my area, my bill is way higher. For me it's part of the price of being an audiophiile and lover of music. Maybe $100 per month.

One point is the actual reason to leave the stuff on 24/7 is for some listeners it really does sound better.
Others can turn on the equipment and it sound great after a short time.

For me it takes at least a few hours to sound good after a cold start, and after 24 hours it sounds even better.
So leaving it on IS like an equipment upgrade!!!
And is the ONLY reason I leave it all on.
If you don not hear a differnce, then you may as well turn it off between listening sessions.

I got the Goldcard from them and when I visit them, I always get serviced by 3L (Long Legged Linda) the Hot Rod among their secretaries. I love Class A units.

There was an article and following discussion about leaving audio gear on all the time at Audiophile Review recently (under Tubes). The premise of the article was that tube life is negatively affected by heating and cooling the elements every time you turn your unit on and off. The fire hazard of a failed tube was also discussed, along with other factors that tend to be political.

I can attest to Oldtex's statement about tube life being negatively affected by heating and cooling the tubes' elements every time you turn your unit on or off. I use a tubed preamp with fairly good NOS (new old stock) Mullard tubes. I have left my preamp on 24/7 since I bought them. I just replaced the tubes with a new group of 4 tubes. The orginal tubes lasted 6 years. I think this proves that leaving tubes on 24/7 can extend tube life in atleast 1 selective case. I would say that leaving tubes on will not negatively affect tube life in my setup.

I'm going to continue leaving my preamp, and class d amp, on mainly because it sounds good immediately instead of after a 1-2 hour warmup. The class d amp requires zero warmup but I leave it continually on due to convenience and the fact it uses so little juice.
Of course, YMMV.

Tim