Buchla 292e Quad Dynamics Manager Module
A four-channel dynamics processor for the Buchla 200e modular system, combining vactrol-based lowpass gates and VCAs with dual outputs per channel.
Overview
The Buchla 292e Quad Dynamics Manager Module is a signal processing module for the Buchla 200e series modular synthesizer. It has four independent channels. Each one can work as a voltage-controlled amplifier (VCA), a lowpass gate, or both at once. The module uses vactrols - light-dependent resistors - to shape both amplitude and timbre, and the response is smooth and organic, typical of West Coast synthesis. Each channel has an audio input, a control voltage input, an audio output, and a dedicated CV output for modulating other modules.
Specifications
| The 292e is a four-channel dynamics manager | |
| Each channel can be used as a VCA, lowpass gate, or both simultaneously | |
| The 292e features a unique combination of vactrol-based lowpass gates and voltage-controlled amplifiers | |
| Each channel features a control voltage input, an audio input, and an audio output | |
| The 292e also includes a dedicated CV output for each channel, which can be used to control other modules | |
| The 292e requires 30mA of +15V power and 30mA of -15V power |
Design
The 292e uses vactrols for its characteristic response, and they act as both filter and amplifier. Each channel has dual outputs, so you can run parallel signal processing. That vactrol-based response is hard to copy with purely digital or standard VCA-based designs. The module is known for the classic Buchla "plink and plonk" percussive filtering, and it produces dynamic, woody, evolving timbres.
Context
The 292e is a modern recreation of the classic Buchla 292 lowpass gate, updated for the 200e series. It is a staple of West Coast synthesis and widely used for rhythmic, textural, and organic sounds. Buchla users favor it for adding movement to patches.
Similar items on eBay
No exact Buchla 292e listings are live right now — these searches show current Buchla and similar vintage synth gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.