Classe Audio CA-M400 Owner's Manual page 14

Caution!
14
When in standby, the amplifier's gain stages are powered down.
Only a small power supply and control circuit remain on, consum-
ing 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, perhaps while traveling for a vacation, we suggest you discon-
nect 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 valu-
able 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 will easily jump across a simple power
switch. The resulting surge (which may be many thousands of
volts) can damage any piece of electronics, no matter how well de-
signed and protected. The best protection in the case of severe
electrical storms is to simply remove the electronics from any con-
nection with the power grid.
2 Select button
The select button is used (along with the mode button) when con-
figuring the amplifier for either balanced or single-ended opera-
tion. It is also used when configuring the turn-on sequence of a
series of Classé amplifiers connected to a Classé preamplifier by the
CAN Bus communications or Trigger systems.
3 Channel status LED indicators
Your amplifier has two LED indicators. There is a separate LED to
indicate the use of either the balanced (XLR) or single-ended
(RCA) input.
These indicators are also used to indicate fault conditions in your
amplifier, should any ever arise. If the LED indicators blink red,
there is a problem with your amplifier.
If you see the Channel LED Indicator blinking red,
please disconnect the amplifier from the AC mains
immediately and check that all external connections are
cleanly made and secure. If no fault is immediately
obvious, please call your local, authorized Classé dealer
for assistance.