I have owned a Croft Vitale pre-amp and currently use a VTL 2.5 pre-amp and an Audio Research PH-3 phono stage. I have left them all on all the time with no problem, as recommended.
How long do tubes in preamp last.......
I am thinking about a tubed preamp. Unfortunately my wife will have access to the system. She has never turned off a light and opens the windows in the winter instead of turning down the furnace. I cannot expect her to turn off the sound system. I know a pre's tubes last longer than an amps, but what are the ups and downs of leaving the pre on for long periods of time? thanks......