Do you leave your components on 24/7?

No I do not;my cd player and pre/processor have standby switches as well as my tubed amps but they stay powered off
unless I plan to listen then they are put in standby mode and left there until listening is done.

For me a majority of my equipment is either off or on standby. The only things that would remain on 24/7 is the gear that doesn’t have a power switch. To me if it doesn’t have a switch then it was designed to be on all the time. Gear I have/had like this a McCormack TLC-1 Deluxe, various Audio Alchemy DTIs and DDEs, my isolation transformers (Tice Audio/Topaz). Ever since I got a Kill-A-Watt and found out what some of my equipment draws either at idle or with a load I won’t leave my gear on all the time. Some amps I have draw 100 watts to 300 watts at idle. I know this isn’t much but it can add up to the electric bill.

No... My system only takes about 15 minutes to fully "warm up" and sound right. And, even during those first 15 minutes, the music is still quite "listenable."

I leave my primary systems on 24/7 (3 of them in rooms I use each day), except for the tube components (preamps). I have several "auxiliary" systems in rooms that don't get much use, and those systems are off except when I'm in the room.

03-01-11: Elizabeth
Leaving a SS item on 24/7 is better for wear and tear.

they often do power cycle cycle (on/off) testing as part of reliability testing of integrated circuit components, but the number of cycles is probably orders of magnitude greater than people would actually perform in the real world. so i don't think that this is a very good reason to leave components on 24/7.

i think that, in general, leaving components on 24/7 is a massive waste of energy resources. as many have stated, 15 minutes should be more than enough to allow a component to reach fairly stable operation, especially under drive conditions. electron temperatures are measured relative to absolute zero (-273 degrees celsius), so after about 15 minutes temperature differences (relative to absolute zero) are going to be relatively small in percentage terms. it seems hard to justify wasting energy under such circumstances.

for my own part, i turn off my amplifier and preamplifier but i don't turn off the phono preamplifier. the reason being that the on/off is not located at the front on the phono preamplifier but since the power dissipation is comparable to that of a night light i don't really make such a big deal over it.