Boulder Amplifiers 860 manual Operation, Powering UP

OPERATION

POWERING UP

With all your connections made, you are ready to listen to your Boulder 860 Stereo Power Amplifier.

To turn the amplifier on, press the STANDBY button on the front panel. The amplifier will perform a warm up cycle and the indicator will alternate between red and amber for 45 seconds. This power up sequence can be skipped by pressing and holding the STANDBY button until the indicator turns red; then release and it will start in about five seconds.

To reduce the inrush of electrical current during power-up, relays are used to turn on the amplifier in stages. These are under the control of the supervising microprocessor. During the power up sequence, you will hear a relay click followed by an additional relay click after two seconds.

The indicator will then turn and remain amber during normal operation.

To turn the amplifier off, press the STANDBY button again. The indicator will continuously change from red to green.

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OPERATION