Electronic components don't wear out like for example mechanical components. But a mains voltage spike or lightning strike - that'll fry your amp and perhaps other components - nicely. Maybe unplug your system if you're not using it for long periods.
Leaving my amplifier on ok?
Would it be ok to leave my amplifier on all the time if I want to extend the reliability of the amp? Many amplifiers ar Class A, high current bias and tubes might be a problem if energy consumption is a factor. Not to mention Excessive heat from bias operation. Is it possible to extend the life of the amp with leaving it on all the time?