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Average Price: $214
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$149
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Based on price data from 2 merchants for "4ms Quad Clock Distributor (QCD)". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
In the world of modular synthesis, timing is everything, and the 4ms Quad Clock Distributor (QCD) is here to ensure your Eurorack rig stays in perfect sync. This four-channel clock divider and multiplier is designed to manage complex rhythmic structures with ease. Whether you're crafting polyphonic beats, locking LFOs, or synchronizing envelopes, the QCD offers an impressive range of timing options with its independent channels. Each channel can divide or multiply clock signals from /32 to x16, providing a versatile toolkit for modular enthusiasts.
The QCD isn't just about division and multiplication; it doubles as a clock generator. Sync all four channels to a single internal clock using the Tap button, and effortlessly distribute five synchronized clock pulses across your rig. Expand your creative horizons by daisy-chaining multiple QCDs or integrating it with a Quad Pingable LFO (QPLFO) for even more modulation possibilities. With a straightforward interface that includes clock inputs, outputs, reset jacks, and CV-modulable division/multiplication, the QCD is an indispensable asset for any Eurorack setup.
Key Features:
- Four CV-controlled clock divider/multipliers
- Tap tempo button with master clock output
- Independent clock input, output, and reset per channel
- Division/multiplication range from /32 to x16
- Sync channels via a master Tap controlled clock
- 10HP Eurorack format for efficient space usage
- Expandable with QCD Expander for additional functionalities
- Includes power ribbon cable and mounting screws
- Power consumption: 88mA (+12V), 41mA (-12V)
- Visual feedback with LED indicators for each channel and master clock
Owner's manual
4ms Quad Clock Distributor (QCD) User ManualProduct specs
| Type | Clock Divider/Multiplier |
| Depth | 1.0" (26mm) |
| HP Size | 10HP |
| Power Usage | ±12V DC 88mA, ±5V DC 41mA |
| Power Supply | Requires Eurorack case and power supply |
FAQs
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What is the primary function of the 4ms Quad Clock Distributor in a modular synth setup?
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The 4ms Quad Clock Distributor is designed to divide and multiply clock signals, allowing you to create complex rhythmic patterns and synchronize multiple modules in your Eurorack system.
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How many clock outputs does the 4ms Quad Clock Distributor provide?
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The 4ms Quad Clock Distributor offers four independent clock outputs, each capable of dividing or multiplying the incoming clock signal to suit your modular setup's needs.
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Is the 4ms Quad Clock Distributor compatible with all Eurorack systems?
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Yes, the 4ms Quad Clock Distributor is compatible with any Eurorack system, requiring a 10HP space and appropriate power supply from your Eurorack case.
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What power requirements does the 4ms Quad Clock Distributor have?
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The module requires ±12V DC at 88mA and ±5V DC at 41mA, so ensure your Eurorack case's power supply can accommodate these needs.
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Can the 4ms Quad Clock Distributor handle both clock division and multiplication simultaneously?
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Yes, each of the four outputs on the 4ms Quad Clock Distributor can be individually set to either divide or multiply the incoming clock signal, offering versatile rhythmic possibilities.
Videos
4ms Company
Quad Clock Distributor (QCD): Video Manual part 1: Overview
Reviews
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about 4ms Quad Clock Distributor (QCD).
Features and functionality
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The QCD requires two pulses to sync with an external clock, affecting its timing precision for certain applications like aligning with drum machine hits.
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The QCD outputs 0-10V, which may be advantageous over Pamela's 0-5V outputs for specific applications, especially when interfacing with modules expecting higher voltages.
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The MiniBrute 2s requires a gate to trigger converter, like After Later Audio G&T, when interfacing its gate output with the QCD, which expects trigger signals.
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User experience
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Some users find the QCD's immediate control over multiplication/division more intuitive compared to other modules like the Octocontroller, which offers extensive features but can be overwhelming.
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Comparisons
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The Octocontroller offers features beyond the QCD, such as lockable random CV, arpeggios, and simultaneous LFOs, but lacks individual channel resets and independent clock multiplication/division.
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Temps utile is favored for ratcheting due to its CV-based output modulation, though it involves menu navigation, unlike the more tactile QCD.
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Shakmat Time Wizard is highlighted for its powerful, intuitive interface, offering an appealing alternative to the QCD and Tempi for those interested in DIY kits.
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Use cases and applications
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The QCD is ideal for syncing LFOs but may struggle with precise audio source triggering when externally clocked, due to its sync delay.
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Combining the QCD with RCD/SCM and sequential switches can create complex rhythmic patterns, utilizing gate clock signals with VCAs for added versatility.
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The QCD expander is recommended for users needing to convert triggers to gates for ADSR applications, enhancing its compatibility with classic ADSRs.
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The QCD can be used to control multiple sequences at different speeds by employing mod tracks in the MiniBrute 2s as additional pitch and gate sequences.
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Software and compatibility
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Pamela's Workout reportedly syncs well with external sources, though its internal timing may not be as tight according to some users.
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Artist usage
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Visible in this April 21, 2018 Instagram post and this photo from this August 2021 Sound on Sound interview.
Pretty Lights used the 4ms Quad Clock Distributor (QCD) in their modular rack during the post-episodic tour, as shown in the user-uploaded photo on Imgur.
This image posted to Underworld's Instagram profile shows a Eurorack full of modules. The Quad Clock Distributor can be seen in the center of the picture, just to the right of the PEG.
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 Quad Clock Distributor (QCD), it is most commonly used with the following gear.
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