Module is available as a DIY project only.
This Module is currently available.
SSM2044 VCF
Timo Rozendal version of the Fonitronik SSM2044 VCF.
This is voltage-controlled low-pass filter with 24dB/octave slope. It is made with the legendary SSM filter
chip SSM2044. This chip was used e.g. in these synthesizers: Korg Polysix, Korg Mono/Poly, Fairlight II, PPG Wave 2.2 und 2.3, Emu SP-1200, Siel DK600, Siel Opera 6.
The special feature of the 4 pole low pass SSM2044 is the patented so-called "true open loop design that delivers a characteristic fat sound not available from other devices" (extract from SSM2044 data sheet).
The module features voltage controlled resonance.
The gain control seen on the frontpanel is not considered in the PDF, it's optional - a mod.
These merchants probably sell this module. Huh?