Front Panel Controls And Switches - Aiken Amplification Invader User Manual

Front Panel Controls and Switches

Input jacks:
Channel 1 is voiced bright, channel 2 is voiced much darker. The upper inputs are higher
gain than the lower inputs for each channel. You can jumper the channels by plugging
into channel 1 upper input and connecting a patch cord from channel 1 lower input to
channel 2 upper input. This allows you to mix the two volume controls for the desired
balance of bright/dark tones, and is very useful for tailoring the tone to your needs. The
two volumes act as a second set of pre-preamp tone controls when used in this manner.
For cleanest tone, plug into the lower jacks of each channel.
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.
InvaderManual.doc 12/08/11
Copyright 2000-2011, Aiken Amplification, Inc.
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