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OPERATION
The power switch is on the front panel.
Sound will begin approximately 60 seconds after turn on.
As with all high fidelity products, the sound characteristic of the VAC changes somewhat as it warms up. We
advise against leaving the equipment on at all times for safety reasons, and because of the attendant acceleration
of output tube wear and power consumption. Life of the output tubes averages 3,000 to 8,000 hours. For best
tube life, turn the amplifier off when you are not listening.
Any time that the VAC Power Amplifier has not been used for a few weeks the sound may be different. This is
also normal for high resolution audio equipment. Optimum sound should return after a few hours of operation,
preferably with an audio signal.
Please note that although your VAC System has been run for 48 hours at the factory, the break-in time of high
resolution audio equipment is infuriatingly long. The Master 300's sound will continue to season for approximately
200 hours. The early sound of the amplifier will be less extended, dynamic, and coherent. Then the sound will
improve noticeably, followed by a period of darker sound, finally giving way to the desired musicality. Patience
is a virtue.
Also be aware that many components display the need for a new break in period after being transported in
unheated cargo aircraft.
ILLUMINATED LOGO
The illumination of the front VAC logo may turned on or off via the switch on the front panel.
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