Befaco Atte
At 4 HP, it fits into tight systems. It's small, but it does real signal control.
Overview
The Befaco Atte is a Eurorack module built as a compact utility for audio and CV signal manipulation. It has four channels in a small footprint. Each one works as an attenuator, inverter, splitter and offset generator. Owners report it is good for patch simplification and signal routing, particularly in dense systems where space is at a premium. Inputs cascade, so a single source can feed multiple channels without external mults. Each channel is also reversible, so users can assign input or output direction as needed.
The Atte doesn't generate sound. It shapes how signals behave across a system. It handles both audio and control voltages with equal competence, which makes it useful for modulating parameters or balancing stereo outputs. Collectors note its presence in utility-heavy builds, where precise level control and inversion are routine needs. Its value lies in quiet reliability and a thoughtful layout.
Specifications
| Manufacturer | Befaco |
| Format | Eurorack modular synthesizer format |
| Module Width | 4 HP |
| Module Depth | 25 mm |
| Power Consumption | +12V, 60 mA |
| Power Consumption | –12V, 50 mA |
| Channels | Four-channel |
| Function | attenuator, inverter, splitter and offset generator |
| Normalling | The input of each channel is normalled to the next channel |
Key Features
Cascading/Normalled Inputs
The input of each channel is normalled to the next, forming a daisy-chained signal path. A single source plugged into the first input automatically feeds the following three channels unless a patch cable overrides it. According to available documentation, this reduces the need for external mults and simplifies distribution of control voltages or audio signals. Users on MOD WIGGLER note this configuration is uncommon and appreciated, and call it a time-saver in live patching.
Four-Channel Reversible Design
Each of the four channels can be used independently and reversibly for input or output. That lets the Atte work as a bidirectional signal router. A user could send one signal through all four attenuverters in parallel, or route four separate sources into the module and sum or offset them individually. The channel independence, confirmed by Synthesizer.gr, makes it adaptable beyond typical attenuator roles, particularly in feedback loops or multi-stage modulation paths.
Quad Attenuator/Inverter with Offset Generation
Each channel combines attenuation, inversion and offset generation. Each section reportedly has controls for signal level (attenuation), polarity inversion (attenuverter function), and a fixed offset between 0 to +10 V or -10 to 0 V. This allows precise shaping of CV sources, for instance converting a unipolar LFO into a bipolar one, or biasing a random voltage into a usable pitch range. The offset generators are built per channel, so the module is self-contained.
Collectibility & Value
The Befaco Atte has held a modest but stable place in the used market. A June 2025 listing on MOD WIGGLER reported a used price of $75. New prices vary across retailers. Thomann lists the module at €95, while Perfect Circuit offers a version labeled "Befaco Atte V2 Quad Attenuverter" for $120.00. Thomann's own new listing prices it at $92, which suggests regional or version-based discrepancies. No original MSRP or production timeline is documented, and there is no evidence of widespread failure or service issues. Owners value it for utility, not rarity.
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