Moog Music MF-101 Lowpass Filter - Manual (Page 3)

3. Note that the BYPASS light is on. It will light up either red or green. Red indicates that
the MF-101's filter is off-line (bypassed), while green indicates that the filter is on-line.
Pressing the 'stomp switch' will toggle the BYPASS light between red and green. For now,
leave the BYPASS light on red.
4. Connect an instrument cable from the MF-101 AUDIO OUT jack to a line-level input
of your amp or mixer. Turn the volume control on your amp down but not off.
5. You can feed virtually any instrument-level or line-level signal through your MF-101.
Examples are guitar, bass, keyboard, theremin, drum machine, or Effects Send output
on your mixer. Connect an instrument cable from your signal source to the MF-101
AUDIO IN jack. Play your instrument (or turn on the signal source). Turn the DRIVE control
clockwise until the LEVEL indicator lights up yellow most of the time.
6. The BYPASS light should still be red. Continuing to play your instrument, adjust the
volume control of your monitor amp until the loudness is comfortable. Your instrument
should sound clean and undistorted.
7. Now set the MF-101 panel controls as follows:
MIX 10
CUTOFF 250
RESONANCE 6
AMOUNT 6
Left Switch SMOOTH
Right Switch 4-POLE
Press the stomp switch. The BYPASS light will now turn green. Play your instrument. Your
instrument's signal is now going through the filter. Listen to how the filter affects the
quality of your instrument's tone. Note also that louder tones 'open' the filter more than
softer tones.
8. In the next section we'll explain exactly what the filter and envelope follower do and
how the controls work. For now, get a feel for the controls by experimenting with
different settings