Does anyone leave their amp and preamp on all the time?

Lyngdorf 2170 on 24/7.  Best sound by a wide margin. Takes several hours to sound its best after turn on...I just keep it on.  Less stressful on internal parts than on/off cycles.  It is a digital powered dac and runs very cool consuming only 22 watts or so.  

Anything that’s not tubes or class a I leave in all the time. Longest component I owned was an Odyssey Stratos amp that I had for about 15 years and pretty much left it in the whole time. Was still rocking when I sold it. 

I leave SS gear on all the time unless I'm going out of town for a few days.  I usually listen every day, so it makes sense to leave it on.  When I've had tubes, I would only leave them on when I was home.  On a few occasions I left the tube gear on overnight, and I thought it sounded better the next day.  But that was probably a placebo effect.  Generally, I don't like to waste tube life, so I only power it up an hour or so before playing.

My Pass PreAmp has no on-off so it is on all the time, the Pass Amps are triggered from standby mode ... Sometimes in the winter I'll leave the Amps on all the time since they run about 106-110 degrees and keep the media room warm ( insert smile here ) ! 

I too am a firm believer that internal circuits are not fans of on/off current jumps.  

Shad 

Leaving amps on is fine, just don't tell anyone that you're a self indulgent energy waster. I leave my cars running all the time also...dangerous and wasteful but hey...they're always ready to go...fridge door is always open for easy access to food and kitchen cooling as an added bonus...go ahead...waste resources all day as the environmental downward spiral is likely unstoppable, and you'll likely be dead before the grandkids have to deal with it. Besides, If my tube amps destroy my home I can just get new stuff!