Moog Music MF-105M MIDI MuRF (Manual Addendum - Firmware v1.8) - Manual (Page 14)

THE AUDIO LEVEL CONTROLS AND MIXING
The DRIVE control adjusts the signal level at the MIDI MuRF’s
circuit input. With this control you can set the right input level for
virtually any instrument or line-level signal source. Turn this control
counterclockwise for strong input signals, and clockwise for weaker
sound sources.
The DRIVE light tells how strong the input signal is after being
adjusted by the DRIVE control. As the signal level increases, the light
goes from off, to green, to yellow, and finally to red. Very weak signals
do not light up this light at all. When the light is green, the signal is
below the level that results in audible distortion. When the light is
yellow, some low order distortion may be audible, giving the sound a
subtle warm analog quality. When the signal is strong enough to drive
the light into the red, the distortion at the output becomes stronger and
more distinctly audible. Watch this light when you set the DRIVE control
for the desired effect. Using the distortion generated by the DRIVE
control in some cases can help make the MIDI MuRF’s filters sound
stronger as distortion adds harmonics to the input signal.
The MIX control is used to balance the dry and effected signals when
the MIDI MuRF is active. At full counter clockwise, the output signal is
the dry signal, as modified by the DRIVE control. At mid-position, the
balance of dry and wet signals is 50%/50%. At full clockwise position,
the output signal comes from only the MIDI MuRF’s filters.
The OUTPUT control adjusts the strength of the MuRF’s signals that
appear at the LEFT/MONO and RIGHT output jacks. Use this control to
balance the MuRF’s signals with the bypassed signal. Note that neither
the DRIVE nor the OUTPUT controls affect the strength of the bypassed
signal.
USING BOTH AUDIO OUTPUTS TOGETHER
The MIDI MuRF has two audio outputs: LEFT/MONO and RIGHT.
When a cable is plugged into just the LEFT/MONO jack, the outputs of
all filters are sent to that jack. If a cable is inserted into the RIGHT jack,
then half of the filters are sent to the RIGHT output, and half are sent to
the LEFT/MONO output. Figure 12 shows the MIDS frequency response
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