The question of whether to leave preamp on/off reminds me of a question years ago about whether you should turn off your home computer or just leave it on all of the time. I think it depends.
I will say this with respect to computers having worked in IT for 25+ years. Computers: Application, Web and Database Servers or any hardware that constitutes a network run 24/7. They may occasionally get rebooted but otherwise, they're always on.
Computers in an office area sometimes get powered down, sometimes they don't. The problem with those that get powered down is that they don't receive updates or security patches until they're booted up again.
As far as audio gear (tube gear in particular), I have mixed feelings.
Having said that, I own an Audio Note OTO SE Phone Integrated. I will sometimes allow it to be powered up for 2-3 days at a time. I think the longest time was for a 7 day period when it was initially burning-in.
My Nottingham Interspace Jr. TT on the other hand has no on/off switch.
Peter Qvortrup was once asked (and most likely has been asked several times), why does he put the power switch on the back of Audio Note components.
Peter's answer: So people won't turn them off.
I will say this with respect to computers having worked in IT for 25+ years. Computers: Application, Web and Database Servers or any hardware that constitutes a network run 24/7. They may occasionally get rebooted but otherwise, they're always on.
Computers in an office area sometimes get powered down, sometimes they don't. The problem with those that get powered down is that they don't receive updates or security patches until they're booted up again.
As far as audio gear (tube gear in particular), I have mixed feelings.
Having said that, I own an Audio Note OTO SE Phone Integrated. I will sometimes allow it to be powered up for 2-3 days at a time. I think the longest time was for a 7 day period when it was initially burning-in.
My Nottingham Interspace Jr. TT on the other hand has no on/off switch.
Peter Qvortrup was once asked (and most likely has been asked several times), why does he put the power switch on the back of Audio Note components.
Peter's answer: So people won't turn them off.