2、The power amplifiers use primary switching. Because the mains power is rectified directly in front of the
transformer, the amplifier is insensitive to mains frequency. It may be connected to 50 or 60 Hz sources,and
actually will operate on line frequencies from DC to 400 Hz.
3、If the power plug mounted at the factory is not appropriate for your country, it can be removed and the proper
connector wired in its place.
4、If you are not 100% confident of your competence to replace the mains plug, engage qualified personnel to do
the job.
5、Once a suitable AC supply is connected, the amplifier can be turned on using the front
panel power switch.The amplifier then goes through a soft-start sequence as it self-checks
its circuits. The fans will blow at high speed before dropping to idle, and the power LED
will illuminate.
6、There is no ground lift switch or terminal on the amplifiers. The signal ground is always floating, via a resistor,
to chassis and therefore the grounding system is automatic.
7、In the interests of safety, never disconnect the earth (ground) pin on the AC power cord.
3
Front-Panel Overview
LED above the switch illuminates, it indicates the power is ON. When VPL or CPL indicators are not illuminated, and the VPL DIP-switches Conversely, when the green LED
doesn t illuminate, it means the are set to maximum at the specified load, the amplifier channels are able power is OFF. to deliver maximum and rated output power.
PWR-Power on(Blue)
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