Powering off vs leaving on

Update- I called John Hillig at Musical Design, the manufacturer (dont know why I didnt think of that earlier). He said that he leaves his on, unless there is a big thunderstorm looming. Anyway...the D-150B is a great amp for my Thiel CS2.4. Plenty of power and current. They also have great customer service.

I never turn off any of the systems in the store or at home. Great sound is our apex and there's only one way to achieve this, total warmup.

I quick acid test with tube preamps is do they have a power switch in front. If so, the designer probably meant for it to be turned on and off regularly. Most will have a standby switch. When I was younger (27 now) and home more I would leave my tube pre on standby 24/7 and switch it on anytime I would listen (which was often several times a day). Now I do most of my listening on the weekend, so I switch it off until I use it. No sense it leaving idle for days, IMO.

Actually my cartridge takes longer to warm up (4 sides of a LP) than my tube preamp and power amp take (20 minutes). So I now leave my tube gear off. I do leave my solidstate phonostage and digital gear on 24/7. I don't hear and warm up effects from my phonostage, but I do from the DAC. And it takes a full 48 hours to settle it. So it must be left on all of the time.

During the weekend, I'll put my tube pre into standby if I'll use it within 8 hours. But my tube amps I'll turn off if I won't use them within 60 minutes. No sense it burning up power tubes. But the flip side is it makes to sense to constantly cycle them on/off several times in one single day. I get 2 years out of a set of output tubes. IF the power amp is left running 24/7 I'd need a new set every 6 months. Time to get that 845 tube amp right? Hahahaha.

If a component fails because of switching it on and off too often, then it is not well design or have mediocre parts. Some examples of electrical things that switch on and off quite often that can last years (in some cases, decades) are the refrigerate that cycles on and off dozens of times a day, your TV, car, cell phone, etc. Some may say that audio components are more sensitive, then that goes back to asking, why? Maybe because that parts aren't designed to be as robust as it should be. A sensitive device that gets gets switch on and off and subjected to electrical surge upon turn on is the sensitive filament in light bulbs. But you are told on the packages how many hours to expect from them, they are designed to last only so many hours. So when I read that those that keep their components on because of fear of shortening their lives, then we really don't have confidence on their design. Buy a Bryston, turn it on and off all you want and sleep peacefully for at least 20 years.