Polyphonic filter boards for Zaturn Analog
Original Zaturn Filters
Newly engineered 12 db dual self-resonating analog filters per voice, with a special character, arranged as LPF and BPF in parallel to each other.
Lead time: 1-2 weeks
Spaze Filters
The filters used in polySpaze, SpazeBoard2 and VCF8. 24db dual self-resonating analog filters per voice, arranged as HPF and LPF in serial.
Lead time: 1-2 weeks
Vothar8 Filters
The unique sounding filters of the Vothar 8, built with discrete parts. Arranged as LPF and BPF in parallel to each other per voice. Modified so that they can self-oscillate, and so that they distort a tiny bit more at higher input levels. These filters are more unstable than the other Zaturn filter types, which makes the filter tuning less precise. Therefore these filters might not be ideal for polyphonic stuff. More info on the original Vothar 8 can be found here:https://tonetweakers.com/products/gotharmans-vothar-8.
Lead time: 1-2 weeks
Multi Filters
These are based on the SSI2140 filter chip, and has the same character as the VCF10 filter board. Each filter group has a lowpass filter with selectable slope (6, 12, 18 and 24 db), and a switchable 12db bandpass/highpass filter per voice. When bandpass is selected, the LPF and BPF runs in parallel. When highpass is selected, the HPF goes into the LPF in serial.
VCF5
These are based on our best selling filter board VCF2, with some improvements:
-24db LPF an BPF modes have been added.
-Filter type can be set for both filters in a group.
-Resonance can self-oscillate.
-These filters are more unstable than the other Zaturn filter types, which makes the filter tuning less precise. Therefore these filters might not be ideal for polyphonic stuff.
Specs:
-2 analog filters in each group (8 in total).
-Each filter can be set in 12db LPF, 12db BPF, 12db HPF, 24db LPF and 24db BPF modes.
-Self-oscillating resonance.
-With input levels set higher than 100, the filters will drive.
-Analog distortion can be switched on/off. Drive is set via the input levels.
Lead time: 1-2 weeks
Ladder Filters
Dual 24db ladder filters with drive.
When drive is zero, both filters are in lowpass mode.
When drive is turned up to around 100, both filters will be in bandpass mode (the resonance has to be set to 100 or more).
When drive is tuned further up, low frequency compensation will kick in.
When tuned up above 256, the filters will start to distort. Filter A will be in lowpass mode and filter B will be in bandpass mode.
The filters audio can be inverted to each other, to create other filter types.
Specs:
-2 analog filters in each group (8 in total).
-Each filter can be in LPF or BPF modes, depending on the Drive setting.
-Self-oscillating resonance.
-Drive parameter.
-Invert parameter.
-Scale parameter. Makes the cutoff skal wider, when turned on.
Lead time: 1-2 weeks
