Peavey Valve King Series Operating Manual page 11

Rear Panel
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FUSE
FUSE FUSE
RESONANCE SWITCH (Valve King™ 112 only)
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Used to fine-tune the low frequency range of the speaker enclosure by varying the damping factor of the
amplifier between two presets. In the "Loose" position, the speaker will produce the most lows with a
slight sacrifice of signal clarity. In the "Tight" position, the speaker will produce the most lows with a
slightly cleaner signal output. It is better to experiment with this switch to find which setting is best for
your sound.
FOOTSWITCH JACK
24
Provided for the connection of the optional footswitch (#00579720). The footswitch is used to select the
Lead or Clean channels and to activate/defeat the BOOST SWITCHES (#8)&(#9) within the Lead channel.
LED's on the footswitch illuminate to indicate current settings. The footswitch turns on and off either
one or both Boost functions (Gain and Volume) as selected by the front panel switches. If no switch is
depressed in the Boost section, the Boost footswitch does not function. When using the footswitch,
always insert the plug fully (second click) into the FOOTSWITCH JACK (#24) to insure proper operation.
IMPEDANCE SELECTOR (Valve King™ 212 and 100 Head only)
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This three-position switch allows appropriate selection of speaker cabinet impedance. If two enclosures
of equal impedance are used, the switch should be set to half the individual value. For example,
two 16 Ω enclosures necessitate an 8 Ω setting, while two 8 Ω enclosures would require a 4 Ω setting.
Minimum speaker impedance is 4 Ω.
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FUSE
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