Boulder 3050 - Operation; Powering Up

Operation
2-1
Powering Up
With all your connections made, you are ready to listen to your
Boulder 3050 Mono Power Amplier.
To turn the amplier on, press the POWER button on the front panel.
The amplier will perform a warm up cycle and the power-button indicator
will blink white and red. This power up sequence is mandatory and cannot
be avoided.
Because of the large inrush currents associated with the powerful
quadruple Toroidal transformers, eight power relays are used to turn on
the amplier. These are under control of the supervising microprocessor.
During the power up sequence, you will hear four sets of two relay clicks,
separated by intervals of two seconds.
The indicator will then steadily glow white and remain this way to
indicate normal operation.
To turn the amplier off, press the POWER button again. The
indicator will then slowly and continuously change from white, to dark, and
back to white. This indicates that the amplier is in “Stand-By” mode.
Operation