Operating Voltage - Classe Audio CA-M400 Owner's Manual

Warning:
8

Operating Voltage

The CA-M400 power amplifier is set at the factory (internally) for
100V, 120V, 230V, or 240V AC mains operation, as appropriate for the
country in which it is to be sold. (230V only in European Union countries,
in compliance with CE regulations.) The voltage setting may not be
changed by the user.
Make sure that the label on the rear panel of your power amplifier indi-
cates the correct AC operating voltage for your location. Attempting to
operate your power amplifier at an incorrect voltage may damage the
unit.
The voltage setting of your power amplifier may not be
changed by the user. There are no user-serviceable parts
within the unit. Please refer any problems to an
authorized Classé service center.
If the AC mains voltage indicated on your power amplifier is incorrect,
please contact your local, authorized Classé dealer or distributor.
The CA-M400 can easily be powered by a normal 15-ampere AC
mains line. If other devices are also powered from the same AC line,
their additional power consumption should be taken into account.
The CA-M400 includes protection circuitry that will prevent the am-
plifier from operating at dangerously high or low voltages.
• At startup: the AC mains voltage must be within a range
of approximately -15% to +10% of its nominal value at
startup, or the amplifier will not turn on. For example, a
120V unit requires the AC mains to be between approxi-
mately 95V–135V in order to turn on.
• Over-voltage during operation: if the AC mains voltage
surges by roughly 10% or more during operation, the am-
plifier will enter protection mode and shut down. The
standby LED will flash to indicate the protection mode has
been engaged.
• Under-voltage during operation: if the AC mains volt-
age sags by 15% or more, the amplifier will continue to
play (since this does not present a particular danger to the
amplifier), but note that it will not be able to achieve its
usual standard of performance under these compromised
conditions. The standby LED will flash to indicate the con-
dition.