Considering that the most common mode of failure in an electronic component is thermal fatigue from power cycles, I leave my system on most of the time. I turn it off for thunderstorms and if I will be away from home for an extended period of more than a couple of days.
Amp — Leave on or turn off
I always turned my Benchmark AHB2 amp off after use every night. After all, why is there an on off switch on the front panel if not to do that? Last night I accidentally left it on. This morning, when I played my first record, I couldn’t believe my ears. The same record I played last night sounded infinitely better. I tried a second record and that, too, was much better.
I know there’s a debate on the question of leaving an amp on all the time.
I now know where I stand!