VAC Renaissance 70/70 User Manual
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5
OPERATION
Each channel has a separate power switch. By delay timer, sound will begin approximately 45 seconds after
turn on. As with all high fidelity products, the sound characteristic of the VAC changes somewhat as it warms
up. Best sound will be achieved after about one hour of operation. We advise against leaving the equipment on
at all times for safety reasons (see Safety Notice at the front of this manual), and because of the attendant
acceleration of output tube wear and power consumption. Life of the output tubes averages 5,000 to 10,000
hours.
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. Refer to the discussion of break in contained in the INTRODUCTION section
of this manual for further information.
Please note that although your VAC System has been run for 48 hours at the factory, they will continue to
"break in" for approximately 150 hours. Also be aware that many components display the need for a new break
in period after being transported in unheated cargo aircraft.