Nelson Pass designed Preamps typically don't have power switches anyway so when they're plugged they are "on." But a preamp is just a line stage and doesn't draw enough to even worry about in the slightest. So relax and enjoy the music : )
And even tubed Preamps (like my Cary) can also be left on practically all the time. Tubes in Preamps will last thousands of hours. Turn off the tube pre when you know you won't be listening for days or when you're traveling. Tubed POWER amps are a different story however!! : )
And even tubed Preamps (like my Cary) can also be left on practically all the time. Tubes in Preamps will last thousands of hours. Turn off the tube pre when you know you won't be listening for days or when you're traveling. Tubed POWER amps are a different story however!! : )