Owner’s Manual 1
Contents 1. Safety Notes 5 2. Introduction 6 3. Features 7 4. Installation Guide 8 5. Front Panel Explained 9 6. Rear Panel Explained 11 7. Software Control Panel 12 7.1. Main View 13 7.2. Standby/Power On View 13 8. Advanced Notes 14 9. Ground Loop Hum and Noise 14 10. Additional Information 14 11. Calibration Mode 14 12. In The Box 15 13. Technical Specifications 15 14.
1. Safety Notes To reduce the risk of electrical shocks, fire, and related hazards: ●● Do not remove screws, cover, or cabinet. There are no user serviceable parts inside. Refer servicing to qualified service personnel. ●● Do not expose this device to rain, moisture or spillover of liquid of any kind. ●● Should any form of liquid or a foreign object enter the device, do not use it. Switch off the device and then unplug it from the power source.
2. Introduction Thank you for purchasing the Pure2 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.
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4. Installation Guide It only takes a few moments to harness the benefits of the Pure2 sound. Follow these simple steps to connect the Pure2 to your system setup: 1. Connect to the AC power source via AC Mains Outlet. Check and adjust the voltage selector! 2. Connect your choice of Analog/Digital Inputs and Outputs on the rear panel of the device and make sure the headphone jack is inserted securely in the front panel input. 3.
5. Front Panel Explained 1. Power button Toggles standby/operation state When you press & hold the power button the following ‘Options’ menu is displayed: - Device Info - Brightness - Input Trim - Output Trim - Reset - Screen Saver - 10M Calibration 2. Oven Clock light When lit, this indicates Pure2 is clocked by it’s own internal clock. 3.
from: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz. The current frequency is indicated on the display (6) when adjusting. Press and hold the ‘frequency up’ button to see the routing table and press and hold to return to the main display view. 6. Display Multi-function display that shows Sample Rate on the left and volume levels for the inputs on the right. It displays independently assignable sources that are adjustable from the software control panel.
6. Rear Panel Explained 11. Mains Power Connection Pure2 has a voltage select option and must be adjusted before powering up. The IEC connector supports ~110V @ 60Hz/ ~220V @ 50Hz. The user should enable the device to accommodate the appropriate mains voltage for their country. 12. WC Input BNC connector used to accept Word Clock reference 13. 10M Input This BNC Input Connector allows the Pure2 to receive timing reference from an Atomic Clock such as the Antelope 10M, to increase the Oscillator accuracy.
TOSLINK Digital Output One optical ‘jitter-free’ TOSLINK Digital Output for use with compatible equipment 17. Word Clock Outputs Eight Word Clock Outputs with BNC connectors. 18. Analog Inputs A combo stereo pair of balanced XLR / ¼” TRS Inputs for connecting Analog sources to the Pure2. 19. Analog Outputs A stereo pair of balanced XLR Outputs for feeding your analog chain from the D/A of the Pure2. 20. Monitor Outputs A stereo pair (2x ¼ TRS) of balanced outputs to connect different pairs of monitors. 7.
7.1. Main View This section of the control panel is used to configure inputs, outputs and also set names for them. The universal panel view sits constantly on the upper half of the control panel, allowing for quick access to the most important features. Top bar: 1. Standby button 2. Sample Rate select 3. Clock Source 4. Tab Selection 5. Options Panel, Minimize and Close Main View: 6. 2 x VU style level Meters 7. Source drop-down menu for Main Monitor 8. Source drop-down menu for Headphones 9.
8. Advanced Notes Proper Digital Audio cables should be used for S/PDIF and AES/EBU: Avoid using standard analog audio cables for digital signal. Even though they might look the same, they are not designed for digital audio and performance will be compromised. ●● AES/EBU use 110 Ω shielded twisted-pair digital cables. ●● S/PDIF use 75 Ω coaxial (video) cables. ●● WC uses 75 Ω BNC cables. And please do not exceed 6 meters in length.
●● Wait for the sign Locked. Error value will now be displayed at the bottom of the screen ●● Wait for the calibration to take place; ●● When the Err. Number becomes stable, press the Rotary control (7) again to end the calibration; ●● You will see “DONE” displayed on the LCD screen. You may exit the menu pressing the Volume Select button (8). 12. In the box ●● Pure 2 Converter & Clock ●● Owner’s Manual ●● Connectivity Chart ●● Warranty Card ●● 1 USB Cable ●● 1 AC Power Cable 13.
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.
14. Antelope Audio Support Resources Antelope Audio offers a range of services and support resources for your Antelope hardware, firmware and software control panels. FAQ Several categories of frequently asked questions are available on the website: http://www.antelopeaudio.com/en/support Telephone Support Phone line is for general inquiries and technical support: +1 734 418 8661 Hours of Operation: 7:00 a.m. - 3:00 p.m. (EST) Help Desk A ticketing system ensures a 24-hour response time: www.antelopeaudio.
Version 2.0 / 18.03.