Why No Power Button on Some Phono Stages?


I am upgrading my phono stage, and several of the ones I have shortlisted do not have a power switch/on-off button.

Why is this? Is the user supposed to keep it powered up all the time, or manually unplug the power each time?

I know certain electronics are supposed to have better sound once they have reached thermal equilibrium, but that doesn't mean I want to keep it powered up 24/7.

Switching the phono stage power off from the power strip is a PIA, as it would switch all of my other components off, and I'd lose by tuner settings.

I want to choose the phono stage by sound quality, but an on/off switch is a major convenience factor for me. Why do some manufacturers leave it off?
kixo
Look at it this way...
The doorbell on your front door always stays lit up, and its transformer always has current going to it. Should you be concerned?
SS is best when it is left on 24/7, the designer knows this, hence the lack of a power switch.
I keep everything that doesn't have a tube on all the time, including the power supply for my turntable. I notice that when I turn things off for vacation, it takes a day or two for thing to go back to sounding their best.
A Solid State phono preamp sounds far better when left on all the time. On our Liberty B2B-1 I decided to put a power switch on the back of the unit should one decide to turn it off between listening sessions, it draws only about 25W when powered up. I recommend leaving it on 24/7 for best sound quality.

On our BIG Olympia Preamplifiers and Phono Stages there is no power switch they are designed to be left on 24/7.

In my own system I leave the front end's on 24/7 while turning of the power amps when not in use.

My favorite story on this subject was a gentleman from the San Francisco area whom bought a set of our Whitney amplifiers sometime in the late 90's. In 2008/9 he was visiting someone down here in San Diego and asked if he could bring them by for a check up. He brought them by on a Saturday and I gave them a check over and they measured / performed like the day they left our shop. The guy had never turned off these amps in 12 + years other than the occasional power outage.

Good Listening

Peter
The power supply for my turntable is the only thing in my system I leave on 24/7. My phonostage is a tube one, which I manually unplug every time. This is not at all unusual.