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Antelope Audio OCX HD High Definition Master Clock

Availability: Please submit request below...
R31,795.00 R37,595.00
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64-Bit AFC Clocking, AES/EBU, S/PDIF, 768kHz High Definition Master Clock
15% Off... the manufacturer's suggested retail price...

The perfect solution for mastering, recording and project studios, film-scoring, post-production and live sound. For over a decade, Antelope’s legendary OCX Master Clock has been a dominant force in the audio world. This legacy now continues with the newest master clock by Antelope Audio – Isochrone OCX HD.

  • 64-BIT ACOUSTICALLY FOCUSED CLOCKING Antelope Audio game-changing 4th gen ACF jitter management algorithm
  • 768 KHZ CLOCKING OCX HD can output five different sample rates
  • GREATER CONNECTIVITY AES/EBU, S/PDIF clocking outs up to 192kHz, video in on BNC and Atomic clock Input


OCX HD and the vast choice of clocking options it offers studio professionals make it the most versatile audio clock on the market. OCX HD raises the bar yet again, delivering sample rate support of up to 768 kHz, Antelope’s best-in-class 4th generation Acoustically Focused Clocking (AFC) jitter management algorithm and oven-controlled crystal oscillator. OCX HD Master Clock offers a great variety of clocking options – 10 configurable in pairs Word Clock Outputs on BNC, four AES/EBU Outputs and two more on S/PDIF. This vast assortment of connectivity makes the OCX HD the most versatile audio master clock on the market, while proven, proprietary clocking technology delivers the most musical and reliable audio sync generation on the market.


All that you love about Antelope’s cult Trinity Master Clock now in just 1U. Additionally, OCX HD offers two Word Clock Inputs and a Video Sync Input, which can resolve to a huge variety of SD and HD formats, as well as clock distribution with gear-boxing, and pull-up and pull-down rates, as featured in the triple clock powerhouse, Trinity Master Clock. A 10 MHz Input allows for syncing with Antelope’s newest Atomic Clock – 10MX.


Access all OCX HD features via Antelope Audio’s flexible software control panel. Antelope’s latest master clock benefits from flexible firmware update functionality, as featured in all new-generation Antelope products, allowing for fast and easy firmware updates on the user-friendly software control panel, available for both OS X and Windows. The desktop app provides convenient remote control to simplify project workflow. The device is also easily configurable from an elegant front panel, which will add a futuristic aesthetic to any gear rack.

Antelope Audio OCX HD High Definition Master Clock Features:

  • Clocking up to 768 kHz
  • 64-Bit Acoustically Focused Clocking
  • Multiple BNC Outputs
  • AES/EBU & S/PDIF Clocking up to 192 kHz
  • Video Input on BNC Connections
  • 10 MHz Atomic Clock Input
  • Remote Desktop App for Remote Control
  • 1 RU Design

    Clocking System 4th Generation Acoustically Focused Clocking 64 bit DDS Oven Controlled Crystal Oscillator
    Basic sampling rates
    32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384, 705.6, 768 (kHz)
    Digital Inputs 2 x RCA Coaxial S/PDIF, 1 x XLR 3-Pin AES3
    Digital Outputs 2 x RCA Coaxial S/PDIF, 4 x XLR 3-Pin AES3
    Word Clock Input
    2 x 75 Ohms 3Vpp on BNC
    Word Clock Output
    10 x 75 Ohms 3Vpp on BNC
    Video Input 1 x 75 Ohms 3Vpp on BNC
    Atomic Clock Input 1 x 10M Atomic Clock Input @ 75 Ohms 3Vpp on BNC
    Humidity 30 – 80% RH non-condensing
    Clock Stability
    <+/- 0.02 ppm, oven controlled at 64.5 C/148.1 F
    Clocking System 4th Gen AFC jitter management technology
    Height 1.75" / 4.44cm
    19" / 48.26cm
    Depth 9.1"c/ 23cm
    Weight 5.8 lb / 2.7 kg
    Manufacturer Part Number 853744004342