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Pure2 is a high-end mastering converter, powered by Antelope Audio’s legendary clocking and pristine analog circuitry

Pure2 is a mastering-grade 24-bit, 192 kHz AD/DA 2-channel converter and master clock that includes a relay-controlled volume attenuator. It features Antelope Audio’s world-renowned Acoustically Focused Clocking (AFC) technology, and also utilizes pristine analog circuitry, driven by a proprietary multi-stage linear power supply for unsurpassed digital clarity and analog realism.



  • Improved overload handling for smoother clipping and analog warmth, handled by PCM4222


  • Dedicated D/A converter for greater convenience, allows monitoring a secondary source


  • Dual DAC architecture for enhanced stereo imaging and signal-to-noise ratio


  • A -1dB stepped relay attenuator with 0.05dB precision and full bypass option


  • Sharp conversion timing via 4th gen AFC jitter management technology


  • Super intuitive OS X & Windows compatible software panel



Access all Pure2 features via Mac & PC app or through the front-panel controls

All Pure2 features are available in an intuitive software control panel for Mac or Windows provides users the ability to manage all facets of the device operation. Pure2 is also configurable via the front panel with user-definable presets.



We know the engineer’s life is not a glamorous one. So we tried to make it easier.

You can set up Pure2 in a couple of minutes. All you actually need is one USB cable (provided in the box) and a laptop of your choosing (Win 7.1 or higher / Mac OSx 10.9 or higher) and you can start capturing stereo audio at 192 kHz.

After setting it up, just download the Control Panel, a few clicks and you’re set.



Antelope Audio Pure 2: Mastering AD/DA Converter & Clock


Analog Inputs

  • 2 x Combo Balanced Analog (XLR / 1/4 TRS) factory calibrated to +20dBu

Digital Inputs

  • 1 x AES/EBU on XLR (32kHz to 192kHz) @ 110 Ohms terminated
  • 1 x S/PDIF on RCA (32kHz to 192kHz) @ 75 Ohms terminated
  • 1 x TOSLINK on optical fiber: up to 96kHz

Word Clock Input

  • 1 x Input @ 75 Ohms 3Vpp on BNC 32 – 192kHz

Analog Outputs

  • 1 x Stereo pair of Balanced XLR Outputs from D/A Converter (Main Output) is factory calibrated to 20dBu and user adjustable from 8dBu to 26dBu
  • 1 x Stereo pair Balanced Outputs for monitors (2 x 1/4 TRS)
  • 1 x 1/4 TRS Front Headphones 20dBu

Digital Outputs

  • 1 x AES/EBU on XLR (32kHz to 192kHz) @ 110 Ohms terminated
  • 1 x S/PDIF on RCA (32kHz to 192kHz) @ 75 Ohms terminated
  • 1 x TOSLINK on optical fiber: up to 96kHz

Word Clock Outputs

  • 8 x Outputs @ 75 Ohms 3Vpp on BNC 32 – 192kHz


  • USB 2.0 Hi-Speed; Data stream up to 480Mbits/192kHz,
  • 4 channels I/O playback/record, Type B

External Reference Clock

  • 1 x 10M Atomic Clock Input @ 75 Ohms 1Vpp on BNC
  • 1 x Word Clock Input @ 75 Ohms 3Vpp on BNC 32 – 192kHz

A/D Converter

  • Dynamic Range: 122dB
  • THD+N: -105dB

D/A Converters

  • Main DAC Dynamic Range 127dB; THD+N -107dB
  • Monitor DAC Dynamic Range 120dB; THD+N -103dB
  • Headphones DAC Dynamic Range 120dB; THD+N -100dB

Clock Specifications

  • <+/-0.02 PPM, oven controlled at 64.5°C/ 148.1°F

Clock Aging

  • < 1 ppm per year

Clock Calibration

  • < +/-0.001 ppm

Atomic Clock Input

  • 10MHz @ 1Vpp, BNC

Sample Rates (kHz)

  • 32, 44.1, 48, 88.2, 96, 176.4, 192

Operating Temperature

  • 0-50°C, 32-122°F


  • 3 kg, 6.6 lb approx.

Dimensions (Approx)

  • 483mm(W) x 44mm(H) x 220mm (D)
  • 19”(W) x 1.75”(H) x 8.66”(D)

Power Supply

  • ~110VAC 60Hz/ ~220VAC 50Hz selectable

Atomic Clock Input

  • 1 x 10M Input @ 75 Ohms 1Vpp on BNC


  • 2 x 0.8A 250VAC 5mm x 20mm Type T (or Time delay)
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