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Average Price: $153

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$149

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Based on price data from 4 merchants for "4ms Rotating Clock Divider". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

If you’re exploring the world of modular synthesis, the 4ms Rotating Clock Divider is a must-have tool for your Eurorack setup. This ingenious module takes a single clock signal and transforms it into eight distinct time-divided outputs, ranging from simple fractions like /2 to more complex divisions such as /17 and /62. It’s perfect for those looking to inject creativity and unpredictability into their rhythmic sequences.

The Rotating Clock Divider shines with its Rotate CV input, which allows you to reassign each output jack dynamically, resulting in nonstandard and evolving time divisions. This feature empowers you to create intricate polyrhythms and glitchy effects that can breathe new life into your modular system. Whether you're syncing percussion modules, modulating envelopes, or driving delays, the Rotating Clock Divider opens up a new dimension of sonic possibilities.

Alongside its main features, this module offers extensive configurability through jumpers, giving you control over gate/trigger modes, division ranges, and even adding an automatic reset for maintaining rhythmic coherence in complex patches. Expand your creative palette even further with the optional breakout module, offering advanced functionalities for the adventurous synthesist.

Key Features:

  • Voltage-controllable clock divider with 8 outputs
  • Division range from /1 to /64, including odd and nonstandard divisions
  • Rotate CV input (0V to +5V) for dynamic reassignment of output divisions
  • Clock and reset inputs for synchronization
  • Configurable settings via jumpers: gate/trigger mode, extended division, spread mode, auto reset, ascending/descending counting direction
  • Expandable with optional 4ms RCD breakout module
  • Slim design: 4 HP width, 35mm depth
  • Power consumption: 33mA (+12V), 4mA (-12V)

Owner's manual

4ms Rotating Clock Divider User Manual

Product specs

Type 1 x 8 Clock Divider
Depth 1.38" (35mm)
HP Size 4HP
Power Usage ±12V DC 33mA
Power Supply Requires Eurorack case and power supply

FAQs

What is the primary function of the 4ms Rotating Clock Divider?

The 4ms Rotating Clock Divider is designed to divide clock signals in a modular synthesizer setup, providing multiple clock outputs at different divisions of the input clock.

How much space does the 4ms Rotating Clock Divider take up in a Eurorack system?

The 4ms Rotating Clock Divider occupies 4HP in a Eurorack system, making it a compact choice for modular setups with limited space.

What power requirements does the 4ms Rotating Clock Divider have?

The 4ms Rotating Clock Divider requires a Eurorack case and power supply, operating at ±12V DC with a power consumption of 33mA.

Can the 4ms Rotating Clock Divider be used with any Eurorack modular synthesizer?

Yes, the 4ms Rotating Clock Divider is compatible with any Eurorack modular synthesizer system, provided you have the necessary power supply and space in your rack.

Does the 4ms Rotating Clock Divider offer any unique features compared to standard clock dividers?

The 4ms Rotating Clock Divider includes a unique rotating feature, allowing you to change the division order, which can create complex rhythmic patterns in your modular setup.

The Mad Music Machine

The Mad Music Machine

Caitlin explains clocks with the Mother-32 clock and the 4ms Rotating Clock Divider

Video thumbnail for Caitlin explains clocks with the Mother-32 clock and the 4ms Rotating Clock Divider by The Mad Music Machine

Caitlin explains clocks with the Mother-32 clock and the 4ms Rotating Clock Divider

The Mad Music Machine

The Mad Music Machine

Video thumbnail for 4ms Rotating Clock Divider - CV Rotate Demo by 4ms Company

4ms Rotating Clock Divider - CV Rotate Demo

4ms Company

4ms Company

Video thumbnail for 4ms Rotating Clock Divider - AUTORESET by 4ms Company

4ms Rotating Clock Divider - AUTORESET

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 Rotating Clock Divider.

Features and functionality

  • The 4ms Rotating Clock Divider can act as a subharmonic generator when a square wave is input and a slow LFO is applied to the rotate function.

    Source
  • CV Rotation allows clock divisions to rotate across output jacks with input voltages, changing divisions incrementally, though non-linearities exist at higher CV levels.

    Source
  • The RCD's back panel includes jumpers for various divisions, which can be easily modified with external switches for quick changes.

    Source

Use cases and applications

  • Owners frequently use the module for creating drum patterns and synchronizing resets to add variation to sequencers, enhancing rhythmic compositions in modular setups.

    Source
  • Feeding the RCD rhythm output from a Qu-Bit Chance module can yield unexpected and impressive rhythmic patterns.

    Source

User experience

  • Some users mention the RCD's fun and simplicity, noting its suitability for techno music due to its straightforward yet versatile clock dividing capabilities.

    Source
  • The RCD is praised for generating unexpected "happy accidents," enhancing creative exploration in modular setups.

    Source

Build quality

  • Some owners initially mistake a protective film on the panel for a defect, requiring disassembly to remove after discovery.

    Source

Comparisons

  • The Doepfer A-160-2 is noted to perform better at audio rates, making it more suitable for audio-rate modulation tasks compared to the 4ms RCD.

    Source

3.0 out of 5

Based on 0 Reviews and 2 Ratings

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Artist usage

Add artist
See how Andrew Huang uses 4ms Rotating Clock Divider

Andrew Huang

Singer, Guitarist

First Of October

...
Verified via YouTube

Visible in this September 25, 2019 video at 1:18.

See how BT uses 4ms Rotating Clock Divider

BT

Music Producer

All Hail The Silence

...
Verified via Instagram

"Polyrhythms and isorhythms with 4ms rotating clock dividers and pingable envelope generator. Absolute rhythmic inspiration mayhem."

See how Richard Devine uses 4ms Rotating Clock Divider

Richard Devine

Keyboardist, Composer

...
Verified via YouTube

can be seen in this November 8, 2016 video

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use 4ms Rotating Clock Divider, it is most commonly used with the following gear.

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