Classe Audio CA-M600 Owner's Manual page 12

When in standby, the amplifier's gain stages are powered down. Only a
small power supply and control circuit remain on, consuming relatively
little power. Fortunately, since the output stages by their nature conduct a
great deal of current, they warm up and sound their best very quickly.
If you are not going to use the amplifier for an extended period of time,
we suggest you disconnect it from the AC mains. Please be certain that the
amplifier is in standby prior to disconnecting it from the AC mains.
Also, it is a good practice to physically disconnect any and all valuable
electronics from the AC mains during electrical storms, as a lightning
strike anywhere near your home can put a tremendous surge on the AC
mains that can easily damage any piece of electronics, no matter how well
designed and protected. The best protection in the case of severe electrical
storms is to simply remove the electronics from any connection with the
power grid.
Caution! If you see the Standby LED indicator blinking red, please
check that all external connections are cleanly made
and secure. If no fault is immediately obvious, try to
reset the amplifier by pressing and holding the standby
button. If the unit does not reset or continues to enter
protection mode, please call your authorized Classé
dealer for assistance.
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