Dual Four Pole
Discrete transistor hipass and lowpass filters
Panel · 106.7 × 128.5 mm Drag to explore →
Description
A dual filter built on the core of an all-discrete transistor design from the tape music studios of 1960s San Francisco and New York.
Key features
- Hipass filter on the left, lowpass on the right
- Two cutoff CV inputs per filter, each with a reversing attenuator
- Voltage-controlled resonance
- No self-oscillation: they screech and growl instead
- No IC amplifiers anywhere in the signal path