This Module is discontinued.
15 Different Filter Modes and VC Resonance
This multimode filter has two signal inputs mixed at unity gain and allows selection of one of fourteen possible filter configurations from front panel switches. If the resonance control is set high enough, the filter will start to oscillate.
Three CV inputs are provided. A 1V/Octave input controls the filter cutoff frequency in conjunction with the panel frequency control. A second frequency CV input has a level control, the resulting voltage being added to or subtracted from the base cutoff frequency resulting from the panel frequency control and 1V/Oct inputs. A resonance CV input followed by an attenuverter is combined with the panel resonance control to determine the amount of resonance that will occur. If the resonance control ia turned past about 80, the filter will start to oscillate with a clean sine waveform.
The MU version is housed in a 1MU (2.125 inch wide by 8.75 inch high) panel with DOTCOM compatible power connector.
FILTER MODE CHART
POLES   MODE          +1P LP
1P        Lowpass
1P        Highpass
2P        Lowpass
2P        Bandpass
2P        Band Notch
2P        Band Notch     +1PLP
2P        Highpass
2P        Highpass       +1PLP
3P        Lowpass
3P        Highpass
3P        Highpass       +1PLP
3P        Allpass
3P        Allpass        +1PLP
4P        Lowpass
4P        Bandpass