Dual Envelope Generator module Behringer 1003 — 2500 Series Eurorack-compatible

Behringer 1003 is a dual envelope generator module from the 2500 Series designed for Eurorack-compatible modular synthesizers. It provides two independent envelope outputs in a compact format, intended to shape amplitude, filter cutoff, or other control voltages. The module follows an ADSR-style envelope behavior and fits standard Eurorack systems for studio and live modular setups.

Advantages

The module offers two independent envelope channels that allow simultaneous modulation of several destinations without needing external splitters. Its compact design conserves rack space while remaining compatible with standard Eurorack power and signal conventions. The ADSR-style response delivers familiar attack, decay, sustain and release stages for precise control of dynamics and timbre. The construction and front-panel layout are geared toward easy integration and immediate hands-on adjustment in performance or patching workflows.

Suitable for

• Shaping amplitude of oscillators and controlling VCAs
• Modulating filter cutoff and resonance with dynamic envelopes
• Creating percussive or evolving articulation for voices in a modular rig
• Triggering gates and timing events in patch-based setups

Key specifications

• Dual independent envelope outputs (two channels)
• ADSR-style envelope stages: Attack, Decay, Sustain, Release
• Eurorack-compatible form factor suitable for standard modular racks
• Front-panel controls for real-time adjustment of envelope parameters
• CV/gate-compatible inputs and outputs for integration with other modules

How to use

Patch a gate or trigger source to the module input to start an envelope cycle, then route the envelope output to a VCA, filter CV input or other modulation destination. Adjust attack, decay, sustain and release controls on the front panel to set the desired temporal shape. Use the second channel independently to process a different voice or link outputs to create stereo or multi-stage modulation paths. Ensure proper power connection to the Eurorack bus and observe standard signal levels when patching to other modules.

Usage recommendations

For predictable behavior, use a clean gate or trigger source and moderate control voltage levels when patching to sensitive filter or VCA inputs. Position the module near destinations you commonly modulate to minimize cable clutter and maintain clear signal routing in live or studio setups.