befaco/bf-22
BF-22
Dual Hi/Low-pass Sallen-Key VCF inspired by the early MS-20, with two independent channels, CV-controlled cutoff and resonance, attenuverters, and a Link switch for series routing.420
Capabilities 4
- Dual VCFdual-vcf
- Two filter channels that can be linked in series via the Link switch, with independent HP/LP mode selection per channel.420
- Highpass Filterhighpass-filter
- 420
- Lowpass Filterlowpass-filter
- 420
- Vcfvcf
- Two independent Sallen-Key filter channels, each with CV-controlled cutoff and resonance, inspired by the early MS-20 topology.420
Jacks 4 — 3 in / 1 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (3) | |||
| Audio In A | audio | — | 420 |
| CV Cutoff 1 | cv | — | V/Oct tracking CV input for cutoff with 4 octaves of tracking. Scaled by the dedicated attenuverter.420 |
| CV Resonance | cv | — | CV input for controlling resonance. Increase until just before LEDs flash for maximum resonance with minimum noise.420 |
| Outputs (1) | |||
| Audio Out A | audio | — | 420 |
Parameters 5
| Name | Type | Range | Behavior |
|---|---|---|---|
| CV Attenuverter | knob | — | Attenuverter for the first CV input of cutoff. At midpoint: CV=0; fully clockwise: CV at max; fully anti-clockwise: CV at max and inverted.420 |
| Cutoff | knob | — | Sets the manual cutoff frequency for the filter channel.420 |
| HP/LP Mode | switch | — | Selects between high-pass and low-pass filter response per channel. Slope is selectable at 6 or 12 dB/octave.420 |
| Link Switch | switch | — | When engaged, connects the output of filter A to the input of filter B for series routing, and disconnects filter B's external input.420 |
| Resonance | knob | — | Sets the manual resonance level. Increase to just before the LEDs flash for max resonance with min noise.420 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [420]
- [421]