Bigbucks5: electronic fail when you turn it on when it's not designed properly. You can turn on and off electronics thousand times a second for years and nothing will happen.
Blindjim: Odyssey and others recommend keeping it on because it takes a while to get optimum sound and not for the longevity. If it takes often days to warm-up, as Odyssey says, then keep it on but if it takes only half an hour keep it off since speakers require about the same playing time to warm up. Odyssey even stated that if you don't mind waiting for optimum sound then you can turn it off when not used.
PC is different story - whole idea of kepping it on initially came from mechanical stress on hard disc during start. Now they keep them on because maintanance is often done thru the network.
Blindjim: Odyssey and others recommend keeping it on because it takes a while to get optimum sound and not for the longevity. If it takes often days to warm-up, as Odyssey says, then keep it on but if it takes only half an hour keep it off since speakers require about the same playing time to warm up. Odyssey even stated that if you don't mind waiting for optimum sound then you can turn it off when not used.
PC is different story - whole idea of kepping it on initially came from mechanical stress on hard disc during start. Now they keep them on because maintanance is often done thru the network.