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operating voltage e amplier is set at the factory (internally) for 100V, 120V, 220V, 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).
e voltage setting may not be changed by the user or dealer.
Make sure that the label on the rear panel of your power amplier indicates
the correct AC operating voltage for your location. Attempting to operate your
power amplier at an incorrect voltage may damage the unit.
Warning: 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 amplier is incorrect, please
contact your local, authorized Classé dealer or distributor.
e amplier can easily be powered by a normal 15 or 20-ampere AC mains
line. If other devices are also powered from the same AC line, their additional
power consumption should be taken into account.
e amplier includes protection circuitry that will prevent the amplier 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 amplier will not turn on. For example, a 120V unit requires
the AC mains to be between approximately 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 amplier will enter
protection mode and shut down. e Standby LED will ash to
indicate the protection mode has been engaged.
• Under-voltage during operation: if the AC mains voltage sags by
15% or more, the amplier will continue to play (since this does
not present a particular danger to the amplier), but note that
it may not be able to achieve its usual standard of performance
under these compromised conditions. e Standby LED will ash
to indicate the condition.