Antelope – Isochrone Trinity Master Clock


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Antelope Audio Isochrone Trinity Master Clock

A master clock that stands out

In the fickle world of Audio & Video formats, Trinity is the Master Clock that stands out from the crowd, with the kind of features that others can only aspire to. With dedicated functions and controls, Trinity is the best sounding and most versatile Master Clock available anywhere. Installed in some of the most prominent audio and post production facilities around the globe, Trinity is in the roots of great percentage of the contemporary music and movie productions. Trinity is also an integral component of some of the largest live concerts and events nowadays.

Stable clocking and advanced jitter management

Powered by an ultra stable oven controlled crystal oscillator, Trinity’s completely redesigned timing engine with 4th generation 64-bit Acoustically Focused Clocking provides supremely low jitter and high stability, with distinct sonic advantages that are immediately apparent. An atomic input makes it a perfect match for the 10M Atomic Clock, while user recalibration and dual redundant power supply will keep the unit running smoothly and prevent costly downtimes.

The features that make it unique

Trinity takes care of requirements that usually would have needed several units. With 3 HD and 2 SD generators the unit locks to and generates all known professional video format, while simultaneously offering 3 independent audio channels capable of 384 kHz with varispeed adjustment in cents or percent! With its wealth of connectivity, flexibility, and ease of use, Trinity is the ideal linchpin for a modern studio.


  • 4th Generation of Acoustically Focused Clocking employing 64 bit DSP leads to a new level in detailed & focused sound.
  • Oven Controlled Crystal Oscillator or Atomic input for supremely low jitter.
  • Factory calibrated to better than +/- 0.001 ppm accuracy.
  • A wealth of rear panel connectivity for tremendous flexibilty
  • Comprehensive audio gearboxing for anything in, anything out
  • Atomic input for ultimate performance
  • 3 Independent & simultaneous audio generators up to 384kHz, andvarispeed control +/- 200 cents.
  • 3 Independent & simultaneous HD generators, covering 16 formats
  • 3 Independent & simultaneous SD generators, simultaneously offering PAL & NTSC.
  • Full Euro and USA Pull-ups / pull-downs for SD and HD video.
  • USB connection via PC & Mac allowing full remote control, loading/saving presets and firmware upgrades.
  • Dual redundant power supply with automatic switchover for added reliability


We often get asked “What are your jitter specifications?”. Well, thanks to our Oven Controlled and Atomic technology our jitter specifications are better than other similar devices. More importantly however, our unique techniques for dealing with jitter through our Acoustically Focused Clocking improves the sound a lot further than any jitter specifications may suggest. Now in it’s 4th generation for Trinity, AFC plays an important role in why Trinity improves the sound of your convertersmore than ever. Take a look below at the reaction of Carlos Castro after listening to Trinity for the first time….

Peace Of Mind

Clocking is a critical task, and should never be confusing. With straightforward controls dedicated to specific tasks, warning lights for critical errors, extensive termination diagnostics and a highly visible, accurate frequency display, operating status is apparent at a momentary glance. Never before has such a powerful device been so easy to use.

Clocking System

  • 4th Generation Acoustically Focused Clocking
  • 64 bit DDS
  • Oven Controlled Crystal Oscillator
  • Stability: < +/-0.02ppm @ 64.5°C
  • Ageing: < 1 ppm per year
  • Calibration: < +/-0.001 ppm
  • Atomic Clock Input: 10MHz@1Vpp, BNC
  • Basic sampling rates (kHz): 32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384
  • Generators: 9 Independent and simultaneous: 3 audio, 3 HD, 3 SD


  • +/-200 cents
  • +12.246%
  • -10,910%

Pull ups/downs

  • +/0.1% NTSC and/or +/ 4% PAL
  • -0.1% HD


  • Universal video input on BNC.
  • Recognizes all video formats automatically
  • 2 selectable Word Clock on BNC 32kHz – 384kHz
  • 1 AES/EBU on XLR. 32kHz – 192kHz @110Ω terminated
  • 1 S/PDIF on RCA. 32kHz – 192kHz @75Ω terminated
  • USB: 2.0 full-speed


  • HD Video 6xBNC @75Ω
  • SD 1 – BNC @75Ω fixed for NTSC video standard. Black Burst
  • SD 2 – BNC @75Ω fixed for PAL video standard. Black Burst
  • SD 3 – BNC @75Ω PAL 24/NTSC 30 selectable.Composite Sync
  • SD 4 – BNC @75Ω PAL 48/PAL 47.95 selectable. Composite Sync
  • Wordclock – 16 BNC, 3Vpp @ 75Ω
  • AES/EBU – 4 XLR @ 110Ω
  • S/PDIF – 4 RCA @ 75Ω
  • Operating Temperature: 0-50°C, 32-122°F
  • Weight: 4 kg / 8.8 lb

Dimensions (Approx):

  • 482 mm (W) × 89 mm (H) × 203 mm (D)
  • 19″ (W) x 3.5″ (H) x 8″ (D)