Front Panel Controls and Switches
Input jack:
Plug your guitar in here and you are ready to rock!
Plexi/Ali switch:
This switch configures the preamp section to match either the warmer early
"plexi/Bassman" style preamp circuits or the later and brighter "aluminum panel" circuits.
For full-volume output stage distortion/crunch tones, the plexi/ali switch is usually best put
in the "ali" position, as this cuts some of the low end and adds a bit more gain and
midrange boost on the second stage. Too much low end can sound "boomy" or "mushy"
when playing wide open. The plexi setting is warmer, with more low end, and excels for
clean tones or for fattening up bright single-coil pickup guitars, such as Telecasters.
Because the plexi/ali switch completely reconfigures the preamp circuitry, it can produce
an audible "pop" or "thump" when switching. It is recommended that the volume controls
be turned down before changing modes.
Volume 1:
Volume 1 is the "bright" channel volume control.
Volume 2:
Volume 2 is the "dark" channel volume control.
Treble:
The treble control adjusts the high frequency equalization.
Middle:
The middle control adjusts the midrange frequency equalization.
Bass:
The bass control adjusts the low frequency equalization.
IntruderMKIIManual.doc 06/17/13 Page 5 of 17
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