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Average Price: $1,434

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$149

$350+

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Price History

Based on price data from 1 merchant for "Buchla 281e Quad Function Generator". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock new dimensions of sound with the Buchla 281e Quad Function Generator, a module that embodies the essence of modular synthesis innovation. Perfect for sonic explorers and modular enthusiasts, this versatile module is designed to enhance your Buchla system with its unique Quadrature mode, allowing envelope generators to pair up and operate in relation to each other. This feature, along with the OR function, enables the crafting of intricate, multi-layered envelopes that add depth and complexity to your soundscapes.

Each of the four channels on the 281e can function independently or be paired, offering a diverse range of modulation possibilities. The module's attack and decay parameters are continuously variable and can be voltage-controlled, giving you the flexibility to shape your sound with precision. Whether you're seeking simple envelopes or elaborate, evolving waveforms, the Buchla 281e delivers with its three modes: transient, sustained, and cyclic. These modes are easily toggled via momentary switches, providing quick access to a wide array of envelope generation techniques.

Ideal for both seasoned professionals and budding modular artists, the Buchla 281e Quad Function Generator is more than just a tool—it's a gateway to endless creative potential. Integrate it into your setup and experience the transformative power of modular synthesis.

Key Features:

  • Four independent or pairable envelope generator channels
  • Continuously variable, voltage-controlled attack and decay parameters
  • Quadrature mode for creating complex, multi-segment envelopes
  • Three operating modes: transient, sustained, and cyclic
  • OR function for blending generator values within pairs
  • Preset storage and recall capabilities (requires 225e or 206e Preset Manager)

Product specs

Type Buchla Quad Function Generator Module
Analog/Digital Analog
Envelope Generator 4 x AD
MIDI I/O 8 x CV in, 6 x CV out, 4 x Pulse in, 4 x Pulse out
CV Connector Buchla Banana
Width 1-panel
Power Supply Requires Buchla Case and Power Supply

FAQs

What type of synthesis does the Buchla 281e Quad Function Generator support?

The Buchla 281e is an analog module designed for use in modular synthesizers, focusing on envelope generation with four independent attack-decay (AD) channels.

How does the Buchla 281e integrate with other modular systems?

The Buchla 281e uses Buchla Banana connectors for CV and pulse I/O, making it compatible with other Buchla-format modular systems.

What are the connectivity options available on the Buchla 281e?

The Buchla 281e features 8 CV inputs, 6 CV outputs, and 4 pulse inputs and outputs, providing extensive connectivity for modular setups.

Is the Buchla 281e suitable for creating complex modulation patterns?

Yes, the Buchla 281e's four independent AD envelope generators allow for creating intricate modulation patterns in a modular synth environment.

Does the Buchla 281e require a specific power supply?

The Buchla 281e requires a Buchla case and power supply to operate, as it is designed for integration into Buchla modular systems.

7thDanSound

7thDanSound

62 Buchla 292e and 281e First Encounters

Video thumbnail for 62 Buchla 292e and 281e First Encounters by 7thDanSound

62 Buchla 292e and 281e First Encounters

7thDanSound

7thDanSound

Video thumbnail for SoU Episode 5 Featured Modules: 281e and 292e by Source Of Uncertainty

SoU Episode 5 Featured Modules: 281e and 292e

Source Of Uncertainty

Source Of Uncertainty

Video thumbnail for Buchla Tip: Cross Patching the 281e by Todd Barton

Buchla Tip: Cross Patching the 281e

Todd Barton

Todd Barton

Video thumbnail for Buchla 281e ORs by Todd Barton

Buchla 281e ORs

Todd Barton

Todd Barton

Reviews

Critic Reviews

Buchla 200e: Part 2

soundonsound.com

The Buchla 281e Quad Function Generator is a versatile module that shines in creating complex contours and dynamic modulations, but its steep learning curve and lack of intuitive controls might deter those seeking straightforward functionality. While it offers immense potential for creative sound design, especially for those familiar with Buchla's unconventional approach, the module's complexity and the absence of comprehensive documentation can be frustrating. Overall, the 281e is a powerful tool for adventurous sound architects but may not appeal to traditional synth users.

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Artist usage

Add artist
See how Adam Jones uses Buchla 281e Quad Function Generator

Adam Jones

Guitarist, Keyboardist

Tool

...
Verified via YouTube

During the interview you can clearly see the 292E and the 281E on behind the back of Rick Beato. They have more Buchla modules but they are less easy to identify .

See how Floating Points uses Buchla 281e Quad Function Generator

Floating Points

Music Producer, DJ

A Pulse Train

...
Verified via Facebook

can be seen in this post from September 2, 2019

See how Morton Subotnick uses Buchla 281e Quad Function Generator

Morton Subotnick

Music Producer

...
Verified via YouTube

Morton Subotnick can be seen using the Buchla 281e Quad Function Generator in this live performance at the 2011 CTM-Festival.

Genre Usage

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Used With

Based on how musicians on Equipboard use Buchla 281e Quad Function Generator, it is most commonly used with the following gear.

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