I, too, leave my EP500 in auto, triggered by the pre-pro, which although it is turned off an on by the remote (rather than the switch on the front panel) runs hotter in stand-by than any other component in the system and hotter than the amps after a 3 hour movie. The EP500 panel gets just over room temp in standby - have not checked after a good exercise regimen.

Scott

My HT