For those of you who own or know anything about powered towers - here's a question for you. How often do you shut off your powered speakers? Every time you use them? Every so often? Never? My question stems from the fact that I just purchased a pair of Infinity IL50 speakers. When in use the bass volume dial on the front glows green, when not in use it glows red. I am guessing the red is a sort of "sleep mode" but I'm not sure if the speakers are still using electricity. The power switch is located in the back of the speaker and based on that, I guess I would believe that if they were meant to be turned on and off with every use, the switch would be located in a more convenient place. My main concern is avoiding any potential long-term damage by leaving the powered towers on all the time.