Yes and the presence knob for channels 2 and 3 is on the back and highly effective. There is a depth switch for power amp excursion on front for 2and 3 as well as a shift switch which alters the mid content,
Ch2 Mode Selector: Red - Blue - Plexi
Gives you the choice to run Ch2 in the standard
blue mode, an identical second red channel or
60’s Plexi mode.
Ch3 Mode Selector: Red - Blue - 80’s
Gives you the choice to run Ch3 in the standard
red mode, an additional second blue channel or
the 80’s mode, which is a slightly more agressive
blue with added compression for a more fluid
feel, this mode cuts the overall level more or less
depending on settings and might require you to
set Ch3 volume higher to be in balance!