Register Your Purchase; Operating Voltage - Classe Audio CP-500 - V2.4 Owner's Manual

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operating voltage

The CP-500 preamplifier is set at the factory 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 preamplifier indicates the correct
AC operating voltage for your location. Attempting to operate your preamplifier at an
incorrect voltage may damage the unit.
Warning:
If the AC mains voltage indicated on your preamplifier is incorrect, please contact your
local, authorized Classé dealer or distributor.
The CP-500 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 CP-500 includes protection circuitry that will prevent the preamplifier from
operating at dangerously high or low voltages.
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.
• At startup: the AC mains voltage must be within a range of approximately -15%
to +10% of its nominal value at startup, or the preamplifier 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 preamplifier 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 voltage sags by 15% or more,
the preamplifier will continue to play (since this does not present a particular
danger to the unit), but note that it may not be able to achieve its usual standard
of performance under these compromised conditions. The Standby LED will
flash to indicate the condition.
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