The 141 is a multifunction Eurorack module combining an Envelope Generator (EG), Voltage Controlled Amplifier (VCA), and Low Frequency Oscillator (LFO) in a single compact unit. Designed to reduce system clutter while maintaining flexibility, it integrates modulation and signal shaping tools inspired by classic analog transistor envelope circuits.
The envelope section is based on the Roland SH101/M-140 style transistor design, delivering a fast, snappy response ideal for percussive and expressive synthesis. The module includes velocity-sensitive control, inverted envelope output, and flexible routing options between envelope and VCA stages.
The built-in LFO spans a wide frequency range and can be internally or externally synced, while also functioning as a modulation source for looping envelope behavior. The audio VCA section supports both linear and exponential response curves, making it suitable for a wide range of dynamic control applications.
Features
• Combined Envelope Generator, VCA, and LFO Eurorack module
• Transistor-based envelope design inspired by Roland SH101/M-140 circuitry
• Fast, snappy ADSR-style envelope response for percussive sounds
• Velocity-sensitive VCA section with normalized input routing
• Selectable 0–5V or 0–10V velocity response compatibility
• Inverted envelope output (0 to -10V range)
• Built-in audio VCA with linear and exponential response modes
• LFO with wide frequency range (10 seconds to 200 Hz)
• Triangle and square LFO outputs continuously available
• Gate-controlled LFO sync and envelope looping functionality
• Designed to reduce system complexity by combining multiple utilities
Specifications
• Product: 141 EG / VCA / LFO Module
• Envelope Type: Transistor-based ADSR-style generator
• Envelope Range: Attack 1.5 ms – 4 s / Decay 4 ms – 12 s / Release 4 ms – 12 s / Sustain 0–10V
• LFO Range: ~10 seconds to 200 Hz
• CV Compatibility: 0–5V (default), 0–10V selectable
• Outputs: Envelope, inverted envelope, VCA output, LFO triangle, LFO square
• Width: 6HP
• Depth: 35 mm
• Power Consumption: +60 mA / -50 mA
Included
• 141 EG / VCA / LFO Eurorack module