Here’s the new Filter 8 from Joranalogue. It’s a VCA based filter topology similar to but not exactly an OTA design. It features a unique resonance circuit and (according to Joranalogue) is “the cutting edge in analogue VCF design”. Now I can’t talk specifics about the circuit but feature wise it certainly packs in a massive punch. 8 filter outputs including 1, 2, 3 and 4 pole low pass filters, a 1 pole high pass, unique band boost and notch, phase shifted output and 4 pole band pass. There’s gain compensation to even out each output under self oscillation, we can freeze and hold the core of the module to effectively silence and halt the output or freeze (like a sample/track and hold) when it’s producing it’s own CV signals. The outputs turn to 8 phase shifted sine waves that tracks great as a multi phase oscillator or LFO and patching feedback means we can create a range of saw like waves with various exp. lin. and log. curves. We can drive the filter with the second input, or again with feedback, exponential and linear FM means we can get gorgeous rich formant throaty vocal tones under audio rate modulation or musical harmonious FM tones when using it as an oscillator. There’s even more so I’ll let the video do the talking. Enjoy and leave a comment to chat below.

https://joranalogue.com/collections/eurorack/products/filter-8