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Reverb
$172.18 New
$129.00 Used
Thomann
5.0 (5)
$163.00 $162.00 $1.00 · All time low

Average Price: $173

Standard/Professional

$149

$350+

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Based on price data from 4 merchants for "Tiptop Audio Buchla 257T Dual Voltage Processor". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock a world of creative possibilities with the Tiptop Audio Buchla 257T Dual Voltage Processor. This Eurorack module is a modern incarnation of the legendary Buchla 257, allowing musicians to delve into the rich realm of voltage manipulation. Sporting two identical sections, each processor can take multiple control voltages and transform them into a single, powerful output. This is achieved through a series of algebraic manipulations like addition, scaling, and inversion, making it an essential tool for modular synthesis enthusiasts.

With a straightforward yet sophisticated interface, the 257T enables seamless voltage-controlled crossfading between inputs, thanks to its intuitive voltage-controlled transfer feature. One of the standout features is the ability to blend, invert, and scale voltages, allowing for creative experimentation with sound waves. The module’s design ensures that you can maintain a smooth workflow while diving deep into complex sound design.

The 257T is more than just a module; it’s a gateway to exploring the esoteric world of West Coast synthesis. Whether you're a seasoned synthesist or a curious newcomer, this module offers a wide range of uses, from crafting subtle sonic textures to creating dynamic, evolving soundscapes. Its robust construction and precise engineering make it a durable and reliable addition to any Eurorack setup.

Key Features:

  • Dual independent voltage processors for versatile sound manipulation
  • Algebraic functions including addition, subtraction, scaling, and inversion
  • Voltage-controlled crossfading between inputs for dynamic sound changes
  • Adjustable offset from 0 to 10 volts for fine-tuning outputs
  • Includes a power ribbon cable for easy integration into your Eurorack setup
  • Compact 14 HP design with low power consumption: 45 mA (+12 V) / 22 mA (-12 V)

Product specs

Type CV Processor
HP Size 14HP
Power Supply Requires Eurorack case and power supply

FAQs

What is the primary function of the Tiptop Audio Buchla 257T Dual Voltage Processor?

The Tiptop Audio Buchla 257T Dual Voltage Processor is designed to process control voltages in a modular synthesizer setup, allowing for complex modulation and signal routing.

How many HP does the Tiptop Audio Buchla 257T occupy in a Eurorack setup?

The Tiptop Audio Buchla 257T occupies 14HP in a Eurorack modular synthesizer setup.

Does the Tiptop Audio Buchla 257T require a specific power supply?

Yes, the Tiptop Audio Buchla 257T requires a Eurorack case and power supply to function properly.

Can the Tiptop Audio Buchla 257T be used in any Eurorack system?

The Tiptop Audio Buchla 257T is compatible with any Eurorack system, provided there is sufficient space and power available.

What type of synthesis can benefit from using the Tiptop Audio Buchla 257T?

The Tiptop Audio Buchla 257T is ideal for modular synthesists looking to add complex voltage processing capabilities, enhancing modulation and control options within their setup.

Todd Barton

Todd Barton

Tiptop 257t part 1

Video thumbnail for Tiptop 257t part 1 by Todd Barton

Tiptop 257t part 1

Todd Barton

Todd Barton

Video thumbnail for Buchla/Tiptop #257T | Voltage Processor by Cinematic Laboratory

Buchla/Tiptop #257T | Voltage Processor

Cinematic Laboratory

Cinematic Laboratory

Video thumbnail for Tiptop 257t part 3 by Todd Barton

Tiptop 257t part 3

Todd Barton

Todd Barton

Video thumbnail for Two 245t & the 257t | Buchla & Tiptop Audio Tips & Tricks by Stazma

Two 245t & the 257t | Buchla & Tiptop Audio Tips & Tricks

Stazma

Stazma

Reviews

PROS

  • Sturdy build and excellent form factor, close to original Buchla 4U modules

  • Dual design with two attenuverters, crossfaders, and offset generators

  • Allows for attenuation, inversion, mixing, modulation, and CV addition

  • Offers multiple functions in one module, saving space in your setup

  • Great for experimental patches and quick simple tasks

  • High-quality production with precise and clear functionality

CONS

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Tiptop Audio Buchla 257T Dual Voltage Processor.

Features and functionality

  • The Buchla 257T excels in attenuverting, crossfading, and offsetting CV, providing a unique workflow that enhances playability and creativity in modular setups.

    Source
  • The 257T can convert the 281t's envelopes to exponential, enhancing the modulation possibilities in a modular setup.

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  • The Tesseract mixer modules are noted for their flimsy knobs, sound bleed, and audible pops when muting, but praised for their price and performance mixer capabilities.

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  • The Tesseract mixer can be split into various parts of a system, using the monitor out as an extra send, adding flexibility to modular setups.

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Comparisons

  • While a similar effect can be achieved with a 3XMIA and X-pan, the 257T offers a distinct, intuitive interface that encourages experimentation, unlike the alternative setup.

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  • The 281-t envelopes offer a raw and lively feel, providing a unique texture compared to the pro 1 envelopes.

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  • The Tesseract mixer is likened to Behringer quality for its style and functionality, albeit with some build quality compromises.

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User experience

  • Owners appreciate the Buchla module's design for promoting new patching paradigms, like AM and FM, due to its dual outputs and inputs, which inspire creative exploration.

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  • Some users have found that collecting Tiptop Buchla modules over time enhances their modular experience, suggesting a strategy of gradual accumulation for full immersion.

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  • One user notes the need for more utilities to fully exploit the capabilities of a modular system, indicating a potential limitation for new setups.

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  • The QD module is praised for its versatility and logical interface, though users caution about its steep learning curve and potential for underuse.

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Value and pricing

  • Some users opt against larger modules like the 296t due to cost and size considerations, suggesting a strategic choice for budget-conscious buyers.

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Use cases and applications

  • Incorporating 257T with the 2600 can introduce unique West Coast synthesis elements, enriching the sonic palette of a system.

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  • The 2hp Drive module is noted for its minimal gain and distortion, leading some users to consider replacing it with more effective options.

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Mods and upgrades

  • Owners recommend Ochd with an expander and 3xMIA for a compact and utility-rich setup, offering enhanced modulation options within limited space.

    Source

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