Plexitube
Audio Path
Following the block diagram from left to right,
the Plexitube begins at the input jack and the signal
immediately enters the DRIVE circuit. This control
sets the overall amount of distortion in the Plexitube.
Next in line is the 3 position mid boost control.
This is designed to increase the mid range or body
of the signal to fatten up the sound. It can also
be used to add sustain for soloing.
The
path then goes into the two channels with channel-1
assigned for ‘rhythm’ and channel-2
for lead. Note that both channels can be used
for either rhythm or lead or for booth and have
merely been designated to improve comprehension.
The Plexitube is equipped
with a ‘tweaker’ control that lest
you fine tune the amount of distortion going to
the channel-2 lead channel. It is best that you
start by using the Plexitube and get use to it
before messing around with this control. It is
factory set at 12 o’clock. Increasing the
drive will of course increase the distortion on
the lead channel for added sustain.
You will note that both
channels have their own 3 position voicing switch
and contour control. On the rhythm channel-1,
the voicing switch has 3 positions with a deep
V scoop tone for those huge metal tones where
the mid range is scooped out, a moderate V scoop
tone that adds a bit more mid range, and a FAT
position that boosts the mids for in-your-face
cut. The contour control is used to find the sweet
spot or center frequency that will best match
your amp and guitar to find the tone you are looking
for. The lead channel-2 is set slightly differently
whereby the 3 position switch goes from bypass,
to standard scoop or fat.
The voicing and contour
controls are directly linked to the EQ section.
The EQ controls affect both channels and when
you turn these controls, you will find that the
results are very noticeable. The bass and treble
controls are extremely powerful opening the door
to a wide tonal landscape.
The last part of the EQ
section is the TOP END 3-position switch. This
is used to set the overall character of the Plexitube
to match the type of amp that you have. For instance,
if you have an overly bright amp, you may wish
to set the TOP END switch to DARK. If on the other
hand you really want a ton of harmonics added,
you could set this switch to BRIGHT.
Finally, there are two
output LEVEL controls, one for each channel. This
lets you set the output level for clean, rhythm
and lead operation. Depressing the toggle footswitch
selects which channel will be activated and the
corresponding LED indicator will illuminate.
To add versatility, channel-2
is equipped with a TRS insert jack that works
just like the ones found on a professional mixing
console. This lets you introduce effects pedals
lime a delay or flanger into the lead signal path.
When the lead channel is selected, the effects
will also go on meaning that you can transition
from a dry rhythm to a lead tone with delay and
do it with a single foot stomp!
For complete details,
please feel free to download
the Plexitube PDF manual.
Effects
Insert Loop
One of the really cool features on the Plexitube
is the insert jack. This lets you insert effects
into the solo channel so that when you go from clean
to solo or rhythm to solo you can have an effect,
such as a delay that turns on automatically as part
of the solo tone. Best of all, when you are not
in solo mode, you can turn effects on or off to
prepare your solo tone for a certain passage and
with a single foot stomp, kick in the effect!
 
Insert
Cable - You'll need one of these
for the effects loop. |

FX
Loop Connections
How to connect your effects using the insert
cable. |
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