Operator`s manual
gain rigs to generate undesirable peripheral noise in overdriven channels. This is
attributable to the physical properties of an amp's constituent components, in
particular its active components. That's right; those cherished tubes are the culprits.
The Noise Gate is a tool that lets you silence this noise during breaks by way of signal
mute circuit. Note that electric guitars pick up interference signals, and these are
amplified tremendously at high gain levels in Lead mode. The most common source of
noise is 50 Hz or 60 Hz (hertz/cycle) mains hum, particularly when the guitar is
positioned near transformers and power units. Because in worst-case scenarios this
humming can attain extremely high levels, the Noise Gate can hardly distinguish
between the musical signal and noise. This makes it hard to find the right Threshold
setting. It is entirely possible for this humming and other noise to rise to a level that
deactivates the Noise Gate and therefore becomes audible. My advice is to stay as far
away from transformers and power units as space allows.
: The may open up inadvertently
when the is activated, a high-gain Lead channel is selected, and the volume
exceeds the Threshold knob setting. At very high volume and gain settings, this may
generate instant feedback, particularly if your guitar is facing the speakers. Rather
than musical and controlled, this is the shrill, unpleasant and potentially harmful
variety of feedback squealing that sends your audience and fellow musicians packing.
Though the amp is not more susceptible to feedback when the is activated,
the fact that it suppresses extraneous noise means you can't hear those telltale signs
that feedback is swelling and consequently can't take measures to suppress it. For this
reason, make an extra effort to be careful when the is activated: Before
you approach the amp and speaker cabinet with your guitar in hand, turn the guitar's
volume knob to the far left position (to 0 so that no signal is audible) to prevent the
pickups and speakers from interacting!
Connect to a signal processor's input/return jack using the
shortest possible shielded cord equipped with 1/4" plugs. Activate and deactivate it via
button. In the signal path, located post preamp and
pre the two power amp Master knobs.
Connect this input to a signal processor's output/send jack using the
shortest possible shielded cord equipped with 1/4" plugs. Activate and deactivate it via
the , which switches between these two loops. In the signal path,
located post preamp and pre the two power amp Master knobs.
FX mix control for . When the knob is set to , the amp signal is routed
through with no processed signal (0% wet balance) added to the mix. Twist the knob
clockwise to blend in the processed signal (parallel/passive, wet balance 1-99%,
depending on knob position). When the knob arrives at the Effect position, only the
wet signal (that is, the processed signal generated by the connected effect device) is
patched to the power amp (serial, 100% wet).
Set this knob to when this loop is not in use!
IMPORTANT note; please read and heed
39 Main FX Loop Send
40 Main FX Loop Return
41 Main FX Loop Balance
NOTE:
Noise Gate
Noise Gate
Noise Gate
Noise Gate
Main FX Loop Dry
Dry
this Main FX Loop output
the FX Loop (29) Main FX Loop is
Main FX Loop
FX Loop (29) button
Main FX Loop is
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