This question is for those of you that have recording studios or studio experience. Is it proper procedure to leave all the recording equipment and the sound board in stand-by mode 24/7? Our church has a small sound board (mixer?), cd/cassette player/recorder, projector, and all the related systems, that are left turned on, I suppose in stand-by condition, because someone told them that is the way it should be done to prevent problems with the sound systems. I would think that heat buildup would be more of a problem in the long run, not to mention the electricity bill, than wear and tear on switches. What do you pro's recommend? On or off?