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Befaco FX Boy – DIY Kit

Befaco FX Boy – DIY Kit

Regular price €327,00
Sale price Regular price

Product details

Main features

  • Cartridgesswappable effect cartridges change the effect without repatching
  • CV controlevery parameter is CV-controllable, including dry/wet
  • EQfour-band EQ with CV inputs, switchable pre or post effect
  • Open formatcartridge spec is open, with a breadboard and docs to design your own

Overview

The Befaco FX Boy DIY Kit is the self-build version of Befaco's 12HP Eurorack multi-effects module. It is for Eurorack users who build their own kits and want effects processing that is fully under CV control. FX Boy loads its effects from swappable console-style cartridges, and Befaco developed the format together with several other manufacturers.

  • Cartridge-based effects: swap a cartridge to change the analog or digital effect without repatching. Each cartridge is a small piece of hardware, much like a pedal inside the case.
  • Full CV control: every parameter can be modulated, including dry/wet.
  • Four-band EQ: LO, MID-LOW, MID-HI and HI bands, each with a CV input. A switch places the EQ before or after the effect.
  • Two modes per cartridge: an A/B selector changes what the cartridge does, alongside its X and Y controls.
  • Open cartridge specification: the kit page lists a breadboard and documentation for designing your own cartridge.

The signal runs from the audio input through the cartridge and the EQ, then the processed signal is blended with the dry signal at the output. The X and Y knobs each have a CV attenuator and input, and their function depends on the loaded cartridge. A peak meter shows green for output signal and red for clipping. Each EQ knob does nothing at 12 o'clock, boosts clockwise and cuts anticlockwise, so an LFO into the EQ inputs can sweep bands in and out.

Befaco and partner makers have released cartridges covering wavefolding, ring modulation and downsampling, fuzz, comb filtering, delay and granular processing, phasing and distortion. Cartridges can be hot-swapped, though a small pop or glitch may occur depending on the cartridge design. Befaco warns against using FX Boy cartridges in other devices, or cartridges from other platforms in FX Boy.

Specifications· 20 details

Format

Format
Eurorack
Width
12HP
Depth
35mm (including connector)

Inputs & outputs

Audio input
1 (modular-level bipolar signal, approx. 10V)
Audio output
1
CV inputs
X, Y, dry/wet, 4 EQ bands
X/Y/dry-wet CV range
10V range, added to the knob setting
Cartridge slot
1

Controls

X and Y
Knobs with CV attenuators
Mode selector
A/B
Dry/wet
Knob
EQ
4 level knobs (LO, MID-LOW, MID-HI, HI)
EQ position
Pre/post switch
Peak meter
Green signal, red clipping

Power

Power draw +12V
125mA (plus cartridge)

General

DIY
Yes
Functions
Effects and Modulation
Height
3U
Synthesizer form factor
Control voltage or gate connectivity

About the brand

Befaco

Barcelona-based maker of open-source Eurorack modules, sold assembled or as DIY kits. Known for experimental voices such as Oneiroi, hands-on build workshops and designs released under a Creative Commons licence.
Origin
ES
Founded
2010
Products
127
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