Kepler

Low-pass filter with 4 individually controllable poles

KEPLER is a unique low-pass filter with four poles that are individually controllable with knobs and cv.
​
The sound can range from soft and clean sounding sweeps to highly resonating self-oscillating sweeps. The cutoff is even controllable with v/oct which means that you could use the filter as an oscillator.
​

http://www.livestockelectronics.com/kepler