6
HIGH
LEVEL
EFFECTS
LOOPS
LOW
LEVEL
SEND
RETURN
SEND
RETURN
FOOTSWITCH
never left the amp, can then be quickly achieved quickly via Effects control on the front panel of
the GT100 (above). As a rule, the on board mixer using the "original" dry sound will provide a
quicker response with a more direct, natural tone and feel than you sometimes get with most
mixing. The only time this presents a potential problem, is when an effects units Input is out of
phase with its own output. This would cancel out with the original dry sound in the amp,
because the Guytron’s dry sound is (obviously) in perfect phase with itself. Another option
would be a phase reversing buffer amp in the loop to return the signal to it’s original phase
relationship, if you have a problem effects unit.
A complete clockwise setting of the Effects control will function exactly like an old series
effects loop for effects units where external blending is the preferred. In either case, the effects
must always be set to unity gain, while the amp is set up as you would normally be using it.
During the level setup process, the channels "Level" controls can be used as variable "Send"
controls, and the "MasterVolume" can be considered the "Return Level". This comes in handy for
some of the more picky effects you might run across.
The front panel channel selector switch is there for convenience, but is disabled while in
the center remote position, to allow for any form of "Latching" remote switching of the channels.
The switch is labeled (Center Remote) to suggest that the remote switch could be any number of
remote switching methods. Example: Using an effects device to switch the GT100 as part of an
effects pre-set.
In any case, the front panel switch is set up to override any external switching in order to
accommodate large stage situations where quick adjustments are needed. Thus eliminating the
need to run back to the footswitch or whatever while adjusting your settings.
The amp is shown in the double "ON" position. While set like this, the amp is fully
functional, and ready to play. During short to medium breaks 10-20 minutes, or between sets, it’s
best to turn the "Standby" switch to the "Standby" position. This will shut down the high
voltage inside the tubes, thus extending tube life, but it also leaves the heaters on for quick