VAC Phi "Kappa 30i" - Manual (Page 14)

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OPERATION
Turn the "Volume" control fully counterclockwise.
Mute is automatically engaged when switching on the unit. High voltage power is not
applied for 60 seconds, thus allowing time for the tubes to ‘warm up.’ Do not unmute
before 60 seconds; failure to wait can cause a transient to be sent to your loudspeakers.
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 15 minutes of operation.
Any time that the Phi Kappa 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.
Note that although your VAC System has been run for 48 hours at the factory, it 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.
FUSES
Please note that there are eight fuses on the power supply.
One is located behind the clear plastic window of the power connector. For 220 or 240
volt operation, please use a 2.5 ampere fuse. For 100 or 120 volt operation, the fuse should
be 5.0 amperes. These are ‘slow blow’ types.
The others are in a conventional fuse holders; the appropriate values are labeled by each
fuse holder.
If the unit is converted for operation at a different voltage, the fuse values must be changed.
Please consult the factory for more information.
See the INSTALLATION section for information on changing the operating voltage.