done two ways, depending on the position of the BANK slider
switch. The switch, located below the PATTERN selector switch is
labeled BANK A or B/LFO. When the slider is in the “A” position,
the lters’ center frequencies can be shifted by an expression pedal
(such as the Moog EP-1) or CV plugged into the LFO/SWEEP
Jack.
To hear how this works, return to the basic setup described in
Figure 5. Plug a Moog EP-1 into the LFO/SWEEP control input.
When the BANK slide switch is in the B/LFO position, an LFO
(Low Frequency Oscillator) shifts the frequencies of the lters as
a group up and down automatically. The LFO is a sine wave. The
rate is determined by the pattern, or an expression pedal (EP-1 or
equivalent) or CV connected to the LFO/SWEEP jack.
To hear the effect of the LFO on the Bass MuRF’s lters, return
to the basic setup outlined in gure 5, then move the BANK slider
switch to “B/LFO”. Now as you play through the Bass MuRF,
you’ll hear the lters swept up and down automatically. To change
the speed of the LFO, plug a Moog EP-1 expression pedal into
the LFO/SWEEP Control Input. The EP-1 can now slow down or
speed up the LFO.
Figure 8 - Resonant Frequency shift
Then, as you play
into the Bass
MuRF, rock the
EP-1 back and
forth. You will
hear the lters’
frequencies shift
with the motion of
the pedal.
