Moog Music Recording Equipment MF-105 ユーザーズマニュアル

7) The Filters’ resonant frequencies can be shifted up and down 

by a small amount to create an effect similar to phasing. Figure 

8 shows a graph that portrays the results of shifting a resonant 

filter’s center frequency. In the MuRF this can be 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 filters’ center 

frequencies can be shifted by an expression pedal (such as the 

Moog EP-1) or CV plugged into the LFO/SWEEP Jack. 

input. Then, as you play into the MuRF, rock the EP-1 back and 

forth. You will hear the filters’ frequencies shift with the motion of 

the pedal. 

     When the BANK slide switch is in the B/LFO position, an LFO 

(Low Frequency Oscillator) shifts the frequencies of the filters 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 MuRF’s filters, return to 

the basic setup outlined in figure 5, then move the BANK slider 

switch to “B/LFO”. Now as you play through the MuRF, you’ll 

hear the filters 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.  

     To hear how 

this works, return 

to the basic setup 

described in Figure 

5. Plug a Moog 

EP-1 into the LFO/

SWEEP control