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Vivaldi Master Clock

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Vivaldi Master Clock is a powerful yet simple to use Grade 1 master clock based on our pioneering developments in studio and home audio. Featuring two banks of clock outputs capable of outputting different frequencies, Vivaldi Master Clock uses the latest groundbreaking technology from dCS.

In a digital audio system, samples must be accurate in level and time but jitter, which exists in all digital systems, can result in timing errors in these samples, causing the analogue signal to be reconstructed inaccurately.

In a dCS system, the DAC can act as the system master clock, but listening tests have shown that there is no substitute for a dedicated high quality master clock. dCS pioneered the use of external clocks in digital audio systems and this clocking technology has been continually refined so that our latest multi-stage Phase-Locked-Loop (PLL) system sets world-beating standards for accuracy and control of troublesome jitter from the incoming audio stream.

All dCS Master Clocks are subjected to rigorous in-house testing. The crystal oscillators are pre-aged and selected for long term stability and then individually calibrated over a wide temperature range to ensure consistent optimal performance. Vivaldi Master Clock uses a sophisticated microcontroller system to ensure smooth correction as the temperature changes, and this approach gives a more stable result than either oven-controlled crystal oscillators or even atomic clocks.

All dCS master clocks are designed to generate industry-standard Word Clock on 75 ohm coaxial cable. Other manufacturers’ equipment that has been designed to accept standard Word Clock can be used with our clocks.

Vivaldi Master Clock may be slaved to an external reference (such as an atomic clock or GPS reference) if increased accuracy is desired. Our sophisticated multi-mode Phase-Locked-Loop (PLL) significantly reduces jitter from the reference source.

The dCS ‘soft’ approach to programmable logic allows the user to easily update Vivaldi Master Clock software, whether this is to add new features, improve performance or adapt to changes in digital formats.

Used as part of the Vivaldi digital audio playback system, Vivaldi Master Clock improves on an already spectacular sound and takes it into an entirely new domain. With a clock added to a dCS system, images snap into sharper focus and the music displays a substantially greater sense of authority and power, as well as offering noticeably superior resolution of detail.

Key Features

  • Utilises the latest generation dCS Digital Processing Platform for state-of-the-art measured performance and unrivalled musical experience.
  • Dual crystal oscillators with microcontroller-enhanced temperature correction.
  • New dual frequency output and auto-clocking mode used in the Vivaldi range improves ease of use and minimises jitter, particularly with computer audio sources.
  • Improved power supplies give lower running temperature and improved tolerance to AC supply variations.
  • Multi-stage regulation ensures sensitive clock and PLL circuitry is unaffected by digital interference.
  • Aerospace-grade machined aluminium chassis fitted with tuned acoustic damping panels reduces magnetic effects and vibration.


Technical Specifications

  • type

    Class 1 Master Clock.

  • clock frequencies

    44.1, 48, 88.2, 96, 176.4 or 192kHz.

  • colour

    Silver or Black.

  • dimensions

    444mm/17.5” x 435mm/17.2” x 126mm/5.0”. Allow extra depth for cable connectors.

  • weight


  • clock accuracy

    Better than +/-1ppm when shipped. Typically +/-0.1ppm when shipped and stabilised.

  • Wordclock I/Oworldclock io

    Two groups of 4 independently buffered outputs on 75Ω BNC connectors. Each group may be set to a different clock frequency

  • digital inputs

    External Reference Input on 1x 75Ω BNC connector. Accepts either Word Clock or AC coupled signals at 1MHz, 5MHz & 10MHz. Lock range is +/-300ppm.

  • startup time

    Typically 1 minute to rated accuracy

  • software updates

    Loaded from CD-R or PC / Upsampler via Reference Input.

  • local control

    dCS Premium Remote handset is supplied with Vivaldi DAC. RS232 (controlled by a third party device).

  • power supply

    Factory set for 100, 115, 220 or 230V AC, 50-60Hz.

  • power consumption

    10 Watts typical/12 Watts maximum.


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    dCS Vivaldi ONE at Werner Music

    Hifi Live Magazine by Ramón Ger

    Read the full article here.

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    The Absolute Sound – dCS Vivaldi Version 2.0

    Review by Jacob Heilbrunn

    “the dCS conveyed it with a sense of weight and gravity, majesty and grandeur that I had not heretofore experienced, apart from a live performance”

    Read the full review

  • image 1

    The Audio Beat – dCS Vivaldi 2.0

    Review by Marc Mickelson

    . . . the most versatile digital system I’ve used and also — by far — the most sonically complete.

    Read the full review.




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    dCS Vivaldi 2.0 digital replay system – Equipment Review

    HiFi+ , November 2016

    Review by Chris Thomas

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    Vivaldi y Rossini: de nuevo la magia de dCS

    Pocas marcas han sabido hilar tan fino a la hora de dotar de “alma” al audio digital doméstico
    como la británica dCS. ¿El motivo? Un dominio de la tecnología “pro” más avanzada cuya expresión
    más reciente la encontramos en el modelo Rossini, presentado en sociedad en el icónico loft de la
    barcelonesa Werner.

    Por Salvador Dangla

    AV Premium

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    dCS Vivaldi – System Review

    HiFiLive Magazine (available in Spanish and English)

    Review by Miguel Castro

    Read the review online

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    dCS Vivaldi DAC Review

    Ultra High End Review, June 2014

    Review by Frank Berryman

    Read the review online

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    dCS Vivaldi Digital Playback System – Equipment Review

    Stereophile, January 2014

    Review by Michael Fremer

    Read the review online

  • image 1

    dCS Vivaldi System Review – Part 1&2

    HiFi Plus Issue 104 & 105,  November 2013

    Review by Chris Thomas

    Read the review online

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    Ne Plus Ultra – dCS Vivaldi Digital Playback System

    The Absolute Sound Issue 233, May 2013

    Review by Robert Harley

  • image 1

    Vivaldi Sings – dCS Vivaldi Digital Playback System

    HiFi News Vol85 No.02, February 2013

    Review by Paul Miller



This is the support section for dCS Vivaldi Digital Playback System.   If you cannot find what you need please try the Support section or Contact Us.

  • Mosaic 1.0.1 Release Notes

  • Vivaldi DAC and Upsampler Release notes

  • User Manual – Vivaldi App v2.0x

    Control app for Vivaldi Upsampler v1.20 with Network firmware v63.

  • Menu Guide – Vivaldi Digital Playback System v2.0

  • User Manual – Vivaldi Master Clock v1.2x

    Software v1.2x.

  • Vivaldi Master Clock v1.20 Update Instructions

  • Vivaldi Transport v2.03 Update Instructions

  • dCS Vivaldi-Nevo Q50 Remote Config 3v00

  • Remote Control Codes

    Last updated 11 Feb 2016.

  • Product Datasheet – Vivaldi Master Clock



  • The Absolute Sound – Editor’s Choice 2014

    HiFi+ – Network Player of the Year 2016

    Dec 2016

  • The Absolute Sound – Editor’s Choice 2014

    The Absolute Sound – Editor’s Choice 2014

    Jan 2014

  • The Absolute Sound – Editor’s Choice 2014

    The Absolute Sound – Product of the Year 2013

    Jun 2013

  • The Absolute Sound – Editor’s Choice 2014

    HiFi Review Hong Kong – Product of the Year 2012

    Dec 2012

  • The Absolute Sound – Editor’s Choice 2014

    Stereo Sound Japan – Golden Sound Award 2012

    Dec 2012

Others in the Vivaldi range