Specifications

16
BASIC SETUP: RANDOM STEP FILTER
• Connect patch cords as follows:
a) Expression Pedal to CP251 LFO PEDAL IN jack.
b) CP251 S+H OUTPUT 1 jack to MF101 CUTOFF jack.
• Set knobs as follows:
a) MF101: AMOUNT “ 0” ; MIX “ 10” ; CUTOFF midposition; RESONANCE “ 7” .
b) CP251 LFO RATE at about 10 Hz (1 o’clock).
Play sustained tones through the MF101. (Brighter tones yield more audible filter effects.)
Note the random filter effect. Turning up the resonance to filter self-oscillation adds
random stepped tones to the signal. Turn the LFO RATE down and use the expression
pedal to control the speed of the stepping.
Variation 1: Random Continuous Modulation of Filter
Instead of S+H OUT 1, patch S+H OUT 2 to the MF101 CUTOFF jack. The filter cutoff
frequency is now modulated smoothly but randomly.
Variation 2: “ Footsteps”
Same as basic setup, except connect the expression pedal to the S+H IN jack.
Expression pedal sweeps filter cutoff, but in steps that are in time with the CP251 LFO.
Fast, spastic pedal sweeps yield random-like modulation; slow sweeps generate
“ staircase” modulation.
Variation 3: Note-triggered Random Step Filter
• Connect MF101 ENV OUT jack to CP251 S+H TRIG jack
Other connections and settings are the same as for the Basic Setup, except be sure
that MF101 Envelope Speed switch is on SMOOTH, and the DRIVE control is turned up so
the ENV LED lights up bright red every time you play a note. Play a staccato line. The
filter cutoff will change after every note that you play, so each note will have a different
tone color.
Variation 4: Note-Triggered Gliding Step Filter
• Connections are the same as Variation 3 above, except CP251 S+H OUT 2 now goes
to MF101 CUTOFF.
• Settings are the same as the Basic Setup, except CP251 LFO RATE is set to 3 o’clock
(about 22 Hz).