TLF

Multi-Pole Lowpass VCF

This module is a classic transistor ladder filter with separate LP outputs: LP1 (1-pole 6dB/oct), LP2 (2-pole 12dB/oct), LP3 (3-pole 18dB/oct) and LP4 (4-pole 24dB/oct).
An interesting TLF detail is the second resonance (ACID), which has a different character and gives the sound a specific tint. Both resonances are controlled via CV independently.

Gain factor when the filter is fully open: 1 (0dB)
CV sensitivity (for all CV inputs): 5v per scale
FM CV inputs: exponential / the others CV are all linear
Maximum audio-input level: -/+5V (14dBu) AC coupling

https://catoffsystems.com/TLF/