As usual the cutoff frequency can be set with a potentiometer and be modulated via the 1V/octave and the attenuable FM input.
The resonance is adjustable manually only and goes into self-oscillation in maximum position, generating a sine wave.
Third parameter is the MOSFET transistor stage's saturation which is located before the filter. It has a strong influence on the filter's sound and adds a lot of character. We have been blown away by the great sound of the Pole-Zero while testing it!
You can modulate the signal level pre-filter via the internal VCA. If you don't want to use this function, just deactivate it by patching nothing to the AMP CV input.
The VCA works at nomilal signal output levels with CVs of 8-10V.
Audio: input and output
Cutoff CV inputs: 1V/oct, FM input
VCA: Amp CV input
3U Eurorack module, 6HP wide, 25mm deep
power consumption: 20mA @ +12V and 20mA @ -12V