Description: Blacet Research Model DF2420 manually controlled state variable filters. Two filters in a single 1U panel.
From the Blacet website:
Two high quality state variable filters in one handy package. Just the ticket for applications where voltage control is not required, such as formant filtering, basic percussion sounds or as a super tone control. Also useful as a clock source in “extreme” feedback mode! Use the filters separately, or with one input feeding both filters (mixed or separate outputs), or with two inputs mixed to one output. No extra mixers needed!
This is the fourth Blacet module that I’ve put into MOTM format this way. It is very neat and tidy, the board mounting to the panel by the pots. In a custom Front Panel Express panel.