User Guide

KBD TRACKING (Continued)

1:1

In the 1:1 position, the value of the note played on the keyboard will affect the Cutoff frequency at full value. This

means that playing a note two octaves above another will raise the Cutoff frequency by a full two octaves.

TECH NOTE: The Keyboard Tracking value in the 1:1 selection is 1 Volt-per-Octave.

TIP: Turn the OSCILLATOR 1 and 2 knobs in the mixer all the way down, and turn the NOISE knob half

way up. Now, set the RESONANCE knob to its middle position and set the KBD TRACK switch to 1:1.

This will allow the Filter to be played from the keyboard while also creating an eerie sound.

ENVELOPE AMT

The ENVELOPE AMT knob determines how much of the control signal

created by the Envelope will be applied to the Filter’s Cutoff frequency over

time. This knob is bipolar, so turning the ENVELOPE AMT knob clockwise

from center will raise the Filter’s Cutoff frequency from the CUTOFF knob’s

current setting. Turning it counterclockwise from center will lower the Filter’s

Cutoff frequency from the CUTOFF knob’s current setting.

NOTE: Negative, or inverse, modulation simply ips the shape of the

Envelope generator. Instead of the Attack parameter raising the Cutoff

frequency over time, the Attack parameter will lower the Cutoff frequency by the same amount, in the

same period of time.

RESONANCE

Resonance takes a portion of the Filter’s output and sends it back to the input

of the Filter, creating emphasis at the Filter’s Cutoff frequency. This is useful for

adding focus, articulation, or “frickin’ laser beams” to a sound.

NOTE: Adding Resonance may reduce the overall volume or bottom-end of a

sound. This is normal.

TIP: Turn the RESONANCE knob all the way up and lower the CUTOFF knob to

about 10 O’clock to cause the Filter to self-oscillate. Then set the KBD TRACK switch to 1:1 to play the

Filter from the keyboard as a Sine wave oscillator.

INPUT

An audio signal from an internal or external module can be introduced to the

Filter using this input. Any sound source applied to this input will disconnect

the normalled Mixer Output signal from the input of the Filter.

NOTE: Do not use this input to introduce an instrument or line-level signal. The

high-impedance 1/4” INSTRUMENT IN jack on the rear panel is available for

these purposes.

OUTPUT

The audio signal exiting the Filter is available at this output.

TIP: Patching from the Output of the Filter to the Input of the High Pass Filter,

and then from the Output of the High Pass Filter to the VCA IN in the Output

section allows you to vary the low-end “weight” of a sound without affecting the

relationship between the Mixer and the Low Pass Filter.