4Pole Highpass is a 24dB 3080 variable transconductance opamp design with
onboard voltage controlled resonance.
The 15A Highpass uses the same basic topology as the 14A Lowpass but is configured for highpass filtering.
1V/Octave response input
CV input with +/- non inverting-inverting attenuator
CV input with standard attenuator
Resonance Control with CV input and attenuator
Gain control for input level