Pricing and availability

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Average Price: $76

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$149

$350+

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Based on price data from 2 merchants for "4ms BUFF MULT". Prices shown reflect NEW condition. Tracking began Apr 12, 2026.

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Description

Unlock the full potential of your modular synth setup with the 4ms BUFF MULT. This versatile Eurorack module offers a straightforward yet powerful solution for routing, splitting, and combining multiple audio or CV signals. With its flexible configuration, it can operate as two independent 1-to-3 multiples or a unified 1-to-6 multiple, allowing you to expand your sonic possibilities effortlessly.

Designed with precision in mind, each channel of the BUFF MULT provides one input and three high-quality outputs, ensuring your original signals are faithfully replicated without degradation. The inclusion of video-rate op-amps makes this module fully compatible with LZX and other video signals, making it an indispensable tool for both audio and visual artists. Each channel features a bi-color LED that indicates signal polarity, aiding in troubleshooting and performance monitoring.

Whether you're isolating modules, detecting signals, or preventing unwanted glitches during live performances, the BUFF MULT excels at maintaining the integrity of your patches. Its compact 3 HP size makes it an ideal addition to any Eurorack setup without sacrificing valuable space. Complete with a 10- to 16-pin power cable and M3 Knurlie screws, integrating the BUFF MULT into your rig is seamless and hassle-free.

Key Features:

  • Two independent buffered multiples, normalized together
  • Each channel: 1 input and 3 high-grade outputs
  • Video-rate op-amps for high bandwidth, compatible with LZX/video signals
  • Bi-color LED indicators for signal polarity
  • 1-to-6 multiple configuration via normalization
  • Compact 3 HP Eurorack format
  • Low power consumption: +12V rail: 13mA, -12V rail: 13mA
  • Includes ribbon power cable and mounting screws

Owner's manual

4ms BUFF MULT User Manual

Product specs

Brand 4MS
Model Buff Mult
Finish Silver
Year 2010s
Categories Eurorack Modules and Cases, Synth Modules
Horizontal Pitch 3HP
Modular Synth Format Eurorack
Synth Module Function Mult

FAQs

What is the primary function of the 4ms BUFF MULT module?

The 4ms BUFF MULT is a buffered multiple module designed for Eurorack systems, allowing you to split CV or audio signals without losing voltage accuracy.

How many outputs does the 4ms BUFF MULT provide for each input?

The 4ms BUFF MULT provides three buffered outputs for each of its two inputs, ensuring reliable signal distribution across your modular setup.

Is the 4ms BUFF MULT module suitable for precision CV applications?

Yes, the 4ms BUFF MULT is ideal for precision CV applications as it maintains signal integrity and voltage accuracy across multiple outputs.

What is the width of the 4ms BUFF MULT in a Eurorack system?

The 4ms BUFF MULT occupies 3 HP in a Eurorack system, making it a compact choice for efficient signal distribution.

Can the 4ms BUFF MULT handle both audio and CV signals?

Yes, the 4ms BUFF MULT is designed to handle both audio and CV signals, making it versatile for various modular synth applications.

4ms Company

4ms Company

4ms BUFF MULT

Video thumbnail for 4ms BUFF MULT by 4ms Company

4ms BUFF MULT

4ms Company

4ms Company

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about 4ms BUFF MULT.

Use cases and applications

  • Owners use the 4ms BUFF MULT for clock signals to maintain sync stability across modules, avoiding issues with passive mult-induced timing errors.

    Source
  • Buffered mults solve grounding issues common with passive mults, useful for maintaining trigger signals when cables accidentally touch grounded surfaces.

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Features and functionality

  • The 4ms BUFF MULT is not recommended for precisely-tuned 1V/oct pitch CV, as it lacks precision in maintaining unity gain.

    Source
  • Winterbloom Helium provides cascading buffered mults with a 3->1 unity mixer, allowing for nine multiples of a single signal and includes LEDs for voltage monitoring.

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User experience

  • Some users experience unintended voltage propagation with passive mults; the BUFF MULT helps mitigate this by preventing voltage feedback loops.

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  • Some owners report issues with the 4ms BUFF MULT affecting pitch accuracy, suggesting potential quality control variances or defects in specific units.

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  • Some users prefer Intellijel Buff Mults for their compact size and effectiveness, noting that solutions like stackables can become messy and obstruct access to other modules.

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Setup and maintenance

  • It's noted that modules with different startup cycles can desynchronize clock signals; a buffered mult or a reset mechanism is essential for consistent timing.

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  • Owners mention that cheaper passive mults like starfish connectors can be cumbersome, protruding significantly from jacks and complicating patch visibility.

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Mods and upgrades

  • To improve pitch CV accuracy with the BUFF MULT, consider upgrading resistors near the op-amps to higher-precision, matched-value components.

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Comparisons

  • Stack cables and passive mults can cause voltage drop, affecting pitch CV accuracy, whereas buffered mults like the 4ms BUFF MULT prevent this issue.

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  • The Frap Tools 333 is favored for its flexibility, offering three groups of unity mixers and multiples with attenuation, though currently hard to find in stock.

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Value and pricing

  • Stackable cables are seen as expensive at £7 each, making mono headphone splitters a budget-friendly alternative for multing non-critical signals.

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  • The AI Synthesis A001 Multiple is highlighted for its affordability and ease of DIY assembly, making it an attractive option for budget-conscious enthusiasts.

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Artist usage

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See how Pretty Lights uses 4ms BUFF MULT

Pretty Lights

Bassist, Music Producer

...
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Used live during Episodic Tour and later in modular rack

Genre Usage

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Used With

Based on how musicians on Equipboard use 4ms BUFF MULT, it is most commonly used with the following gear.

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