Available as an assembled Module and as a DIY project.
This Module is currently available.
Analog Metropolis AM4023 Low Pass Filter from Synthcube; double-width version
Advanced version of the AM4023 "Arp Odyssey" filter with additional audio and CV inputs.
http://synthcube.com/cart/analog-metropolis/am4023-lp-filter-motm-assembled-2u
