A fat 2-pole state variable filter which invokes the classic sounds of the synthesiser 'golden years', twisted and mutated to reflect the future. Multi-mode, state-variable topology and 'hot-rodded' resonance for self oscillation. Humpback is made with high quality components including silver mica capcitors.
Humpback has a sound all of it's own. Low input levels will give you a traditional 2-pole filter sound - warm, but clean. As the filter is driven and resonance increased, the distinctive character of the filter is revealed - a 'rubbery' resonance which seems to pluck out harmonics.

Width: 8hp
Current: +72mA -70mA + @ +/- 12V

Humpback is nowon mk.2 - changes in this
version include:

- Bandpass output now has 'dirty' resonance
- Green LED for input level indication