Befaco

Notes: Voltage-Controlled Voltage Processor

A*B+C is the ultimate utility for audio and control voltage. It performs multiplication, addition, and attenuation, providing a simple way to create complex signal interactions and timbres.

It is formed by two channels, each of which takes two input signals (A and B), multiplies them (A × B), and then adds a third signal (C) to the result.It is formed by two channels, each of which takes two input signals (A and B), multiplies them (A × B), and then adds a third signal (C) to the result.

By combining different blocks, many functions can be achieved:

Audio Processing:

Four-quadrant amplitude modulation (ring modulation)
Linear VCA
Signal mixer
2x gain amplifier
Phase inverter
Attenuator

CV Processing:

Voltage-controlled attenuator
CV mixer
Attenuator
Inverter
VCA
DC generator

Features

DC Coupled
Signal LED Indicators
B and C INs normalled to 5

Specs

Current Draw: +12V: 50mA, -12V: 50mA +5v : 0mA
Width: 6HP
Depth: Assembled version 25 mm
Depth: DIY version 35 mm
Designed, kits prepared and assembled in Barcelona.

Notes: A spectral processing playground.

Bandit is a fun combination of band-pass filters, VCAs, and routing options.

It serves multiple functions including equalizer, crossover, multiband VCA, 4 band spectral mixer, and spectral external FX insert point.

It allows you to:

Cut or emphasise different frequency bands of a signal, acting as a voltage-controlled equalizer/isolator.
Split a sound into four different frequency bands for external processing, and if needed, insert them back
Mix four different signals with predefined tone placement in the mix.
Create four different sounds from one sound source by modulating the volume with four different envelopes.
Create evolving timbres by modulating one or more frequency bands using LFOs or audio-rate modulation.

Specs

Current needs: +12V: 80mA, -12: 70mA, 5v:0
Width: 8 HP
Depth: 30mm (including power connector)

Notes: The EVEN VCO is a voltage-controlled oscillator that offers stability and high precision tuning over 10 octaves. A redesigned temperature compensation circuit maintains the oscillator stable against voltage and temperature drops.

Specifications:

Current needs: +12V: 36mA, -12V: 26mA
Width: 8 HP
Depth: 22mm, (28mm DIY) including power connector
Aluminium, heat-treated front panel.
Designed, kits prepared and completed modules assembled in Barcelona.

Notes: A compact attenuverting (attenuator-inverter) joystick controller and Gate Generator. With it, you can generate and process two control voltages using only one hand. Provided controls for CV ranges and offset adjust the boundaries of your control, this way it never gets out of the desired range, ensuring sensibility and playability even with wild performance gestures.

Specifications

Current needs: +12V: 25mA, -12V: 10mA
Width: 12 HP
Depth: 35mm (including power connector)
Aluminium, heat-treated front panel.
Designed, kits prepared and completed modules assembled in Barcelona.