This is a great example of a new Befaco Musical Instruments Module Filter Dual on Synth for Sale. INTRODUCTION The BF-22 VCF is a dual Hi/Low-pass filter inspired by the Sallen-Key filter from the early MS-20. FEATURES The module features attenu… Read More for more information and how to order.
This is a lovely example of a new Befaco Module available on Synth for Sale. INTRODUCTION The BF-22 VCF is a dual Hi/Low-pass filter inspired by the Sallen-Key filter from the early MS-20. FEATURES The module features attenu… Read More for more information and how to order. INTRODUCTION The BF-22 VCF is a dual Hi/Low-pass filter inspired by the Sallen-Key filter from the early MS-20. FEATURES The module features attenu…
Befaco is a Spanish modular synthesiser manufacturer based in Barcelona, best known for Eurorack modules that balance experimental ideas with solid, practical engineering. The company has strong roots in DIY culture, with many of its designs available both as fully built modules and as kits for hands-on builders.
Their modules cover a wide range of functions including oscillators, filters, modulation, sequencing, utilities, and performance tools, often with a playful edge and a focus on interaction. Befaco gear is popular with modular users who enjoy understanding how their systems work and who value flexibility, patchability, and character over polished presets.
For SynthForSale, Befaco fits into the Eurorack and modular synthesis category — versatile instruments and utilities aimed at creative musicians who want expressive, adaptable modular systems with a strong DIY-friendly ethos.
Dual indicates that an instrument or module contains two identical or complementary sections. This can apply to oscillators, filters, envelopes, or channels, allowing parallel processing, stereo operation, or more complex sound design within a single unit.
A filter is a sound-shaping component that removes or emphasises specific frequency ranges. Filters are used to sculpt tone, add movement, and control brightness or depth, playing a central role in shaping raw sound into expressive and musical results.
A module is a self-contained unit designed to perform a specific function within a larger system. Modules are commonly used in modular and Eurorack setups, where each unit handles tasks such as sound generation, modulation, filtering, or control, allowing systems to be built and expanded piece by piece.
New Gear is unused and in original condition, supplied as it leaves the manufacturer. It is chosen for guaranteed reliability, full functionality, and the assurance of manufacturer support. For example, buying new ensures access to the latest design revisions, included accessories, and official warranty coverage.
VCF is a voltage-controlled filter used to shape sound by removing or emphasising specific frequency ranges. It is used to control brightness, tone, and movement, responding dynamically to control signals such as envelopes, LFOs, or external modulation. For example, a VCF can be used to slowly open a filter on a pad sound to add evolution, or to sharply shape a bass line for punch and clarity.
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