Antelope 10MX Rubidium Atomic Clock

Article number: 10MX
Availability: Ships from manufacturer
Delivery time: Normal delivery time is 2-7 business days, subject to availability.

10MX is the newest and the premier member of the Isochrone family. It features technologies from two of Antelope's legendary products. The atomic precision of the 10M and the sophisticated jitter-management algorithm of Trinity are combined in a futuristic, 1U rack space enclosure, providing the world's most stable and musical clocking.

10MX is a fusion of proven technologies and contemporary industrial design, where no compromises are allowed and both build-quality, and performance-excellence are top priority. The new Rubidium Atomic Clock is an epiphany of more than 20 years’ expertise in the digital audio world, making vividly real the clarity, depth, width and 3-dimensionality distinctive of the analog sound.

10MX is perfectly suited for recording, mixing and mastering environments. Its form factor, occupying only 1U of rack space, makes it ideal for live sound application where rack slots are precious commodity.

The multiple atomic outputs allow up to 10 devices to be clocked simultaneously over BNC outputs of 10MHz. The unit can also be used as a master clock with 4 outputs, supporting the outstanding sampling rate of up to 768 kHz via BNC. Two more clocking outputs are available via AES and two via S/PDIF.

The new Rubidium Atomic Clock is equally easy manageable either from the front panel or the intuitive software control panel available for OS X and Windows, connecting via a USB port.


    Rubidium core with accuracy of 0.05 ppb (parts per BILLION)

    4th generation Acoustically Focused Clocking (AFC), employing 64-bit DSP

    Master clocking up to 768 kHz over 4 WC

    2 x S/PDIF and 2 x AES/EBU master clocking outputs up to 192 kHz

    Atomic clocking compatible with any device that accepts 10MHz reference

    Utmost ease of operation, just connect it and power it on

    PC/Mac connection via USB, allowing remote control and firmware upgrades

    Intuitive Software Control Panel

    Extremely sturdy mechanical construction


  • Atomic Reference Type: Rubidium Ultra-Stable Resonance-Controlled Master Oscillator
  • Frequency: 10MHz
  • Frequency Accuracy: Better than ±5E-11 @25C (±0.05 PPB)
  • Aging: Daily* ±2.5E-11, Monthly* ±1E-10, Yearly ±1E-9 (*After 1 day & 1 month of operation respectively)
  • Short Term Stability: t=1s ≤3E-11, t=10s ≤1.6E-11, t=100s ≤8E-12
  • Time drift in a 24-hr period: <7μs over 0°C to +60°C
  • Phase Noise (SSB): 1Hz ≤-70 dBc/Hz, 10Hz ≤-87 dBc/Hz, 100Hz ≤-114 dBc/Hz, 1kHz ≤-130 dBc/Hz, 10kHz ≤-140 dBc/Hz
  • Warm-Up Time: 8 – 10 minutes (depends on ambient temperature)
  • Maximum shock withstanding: Non-operating, flight case mounted: 100m/s2 (~10.2 g*), 11 msec half-sine pulse per IEC 60068-2-27:2008
  • Maximum shock withstanding: Non-operating, in original packing: 300m/s2 (~30.6 g*), 5 msec half-sine pulse per IEC 60068-2-27:2008
  • Power Supply Type: AC
  • Power Supply Input: 100 – 240 V~
  • Power Consumption: 15 W
  • Atomic Clock Outputs: 10 x BNC Sinusoidal, 10MHZ, 75 Ohm, 1Vpp typical (unload)
  • Word Clock: 4 x BNC
  • AES/EBU: 2 x XLR
  • S/PDIF: 2 x RCA
  • USB: USB 2.0 Hi-Speed, Type B, only for control
  • Word Clock Specs: TTL Level, 75 Ohm Output Impedance
  • Operating Temperature: 0 – 50°C, 32-122 F
  • Humidity: 30 – 80% RH non-condensing
  • Dimensions: 482.6 (W) х228 (D) х 44 (H) mm, 19 (W) x 9 (D) x 1.73 (H) inch
  • Weight: 2.8 kg/6.17 lb
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