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8) BOOST INDICATOR When lit, this indicates that the Boost func-
tion is active.
9) BOOST CONTROL This adjusts the amount of footswitchable
boost and is particularly useful for solos. It provides up to 10dB
of “Master Volume” boost, regardless of which channel is active.
The boost is active if the footswitch is unplugged. The Boost oc-
curs after the effects loop, so no adjustment of your effects will be
neccessary.
10) MASTER This is a global master volume control which sets the
overall loudness of the entire amplifier. The Master is also after the
effects loop.
11) JEWELED PILOT LIGHT Indicates that the amplifier’s power
switch is in the “On” position.
12) STANDBY This allows the amplifier to be powered up, but with
the tubes in a non-operational mode. The Standby can be used in-
stead of the power switch between performance sets, since it allows
the amp to “shut down” while keeping the tubes warm and ready to
go. It’s also best to power the amp up with this switch set to the
left/off position until the tubes have had a few minutes to warm up,
although modern tubes are more tolerant of this.
13) POWER Provides AC power to the amplifier when in the “On”
position—switched to the right.
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