Some people worry about their electric bill go high. In reality it is not that high at all. When amp/preamp idle, it is like having a 60W bulb on all the time. Couple bucks a month.
With a tube gear it is NO-NO since they may overheat and tubes life will be very short.
Dan, it is up to you if you will turn them of or not. If you have never done it, try it for a couple of weeks. The big plus on doing this? Many modern SS equipment take several days or even more then a week staying "on" to get to the best sound, even if they have "stand-by" mode or fully broken in. If you hear no sonic improvement, start turning them off. I never do.
With a tube gear it is NO-NO since they may overheat and tubes life will be very short.
Dan, it is up to you if you will turn them of or not. If you have never done it, try it for a couple of weeks. The big plus on doing this? Many modern SS equipment take several days or even more then a week staying "on" to get to the best sound, even if they have "stand-by" mode or fully broken in. If you hear no sonic improvement, start turning them off. I never do.