Classe CT-M600 Monaural ユーザーズマニュアル

7

operating voltage The amplifier 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). 

The voltage setting may not be changed by the user or dealer.

Make sure that the label on the rear panel of your power amplifier indicates 

the correct AC operating voltage for your location. Attempting to operate your 

power amplifier at an incorrect voltage may damage the unit.

If the AC mains voltage indicated on your power amplifier is incorrect, please 

contact your local, authorized Classé dealer or distributor.

The amplifier 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.

The amplifier includes protection circuitry that will prevent the amplifier 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 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 amplifier 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 amplifier will continue to play (since this does 

not present a particular danger to the amplifier), 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.