Cwejman RES-4 Quad Resonator Module

YouTube via bigcitymusic
"Here's the Jomox 888 into the Cwejman VC-FCS stereo compressor and on into the RES-4. The Res-4 is made up of four analog resonant band pass filters. Each one has control for frequency, resonance level, and volume.
The filters are triggered by the audio signal. The more you turn the resonance up the longer it rings out. Make kick drums. Use it as a multiple band sound shaper. Use it to make really awesome sounding steel drum mutations while sequencing the pitch via CV. There's a master CV and each individual filter has a frequency, level and bandwidth CV in. Yep. It pretty rad."