We spoke to Gur Milstein from Tiptop Audio at Superbooth 2023, where he showed us their recreation of the Buchla 296 spectral processor module. The 296 has 16 bands, each of which have three bandpass filters, which are extremely narrow and amplified so it's not your typical EQ, but rather a sound design machine with all those inputs and outputs and its internal cross modulation for vocoding and beyond.
296 Spectral Processing Module Available: Summer 2023
Cheap as chips too
Monster Poly actually portable
3 Osc mono/para gets a refresh