6
Multi Filter Board
A new polyphonic analog Multi Filter Board is now available for Zaturn. This is based on the
SSI2140 filter chip, and has the same character as the VCF10 filter board, with an added slope
parameter for the lowpass filter.
This board has 4 filters, each with a lowpass filter with selectable slope (6, 12, 18 and 24 db), and a
switchable 12db bandpass/highpass filter. When bandpass is selected, the LPF and BPF runs in
parallel. When highpass is selected, the HPF goes into the LPF in serial.
zaTurn can hold the tunings for up to 4 analog filter boards, and it will show on the Preset Select
page, which filter board were installed, when the preset was saved, to make it easier to work with
several different filter boards.
The parameters are exactly the same as for the original zaTurn filters, except for that the BPF can
be switched to a HPF, and that the LPF slope can be set.
