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Audio Research DAC9 User Manual

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Summary of Contents for Audio Research DAC9

  • Page 1 DAC9...
  • Page 3 Thank you for choosing the DAC9 as part of your high performance music system. Since 1970, Audio Research has been creating some of the world’s finest audio equipment. Each piece is handcrafted in Minnesota, and has been designed to provide many years of listening enjoyment.

  • Page 4: Table Of Contents

    Contents Warnings Installation Before Operating the DAC9 6 In Your System 7 A Note about Vacuum Tubes 7 Connections Back Panel Connections 8 Operation Input Connectors 9 10 Front Panel Controls and Display Output Connectors 9 11 Start-Up A.C. Power Connection 9...

  • Page 5: Warnings

    ‘Low Line’ and automatically goes into ‘Mute’. This • The detachable power cord on your DAC9 is condition will persist until the line voltage equipped with a heavy gauge, 3-conductor returns to a safe operating level; please (where applicable) cable and a standard note the unit will remain in ‘Mute’...

  • Page 6: Installation

    Installation Remove all screws fastening the top cover. Before operating the DAC9 Your DAC9 converter is shipped with the Carefully remove each vacuum tube vacuum tubes packed in a separate foam- from its protective foam and match its lined carton. These must be unpacked location ‘V’...

  • Page 7: In Your System

    For upright stability A Note about Vacuum Tubes and best performance, never operate The vacuum tubes in your DAC9 have the unit while it is sitting on a soft been burned in, tested and electrically surface such as a thick rug or carpet.

  • Page 8: Connections

    Connections Back Panel Connections RS-232 connector IR Input Fuse Holder Main Outputs A.C. Mains connector Digital Inputs...

  • Page 9: Input Connectors

    A pair of balanced and single-ended and interconnects. Audio Research main outputs are provided. Connect the cannot emphasize this enough. As output of the DAC9 to an input of your better components and systems are preamplifier or integrated amplifier. developed, it becomes increasingly important to avoid the limitations of A.C.
  • Page 10 Operation Front Panel Controls and Display Vacuum Fluorescent Display Power On/Off Menu Mute Option Input (used with Menu) Enter (used with Menu)
  • Page 11 • Plug three-prong power cord from • Turn off preamplifier. rear of chassis into grounded A.C. wall • Press Power switch to ‘off’ on DAC9. outlet. The Power switch defaults to ’off’ • Turn off input sources. when the unit is plugged into a power receptacle.
  • Page 12 Operation Front Panel Controls Mute The DAC9 has six buttons: Power, Menu, When activated, Mute electrically disables Option, Enter, Mono, and Mute. all outputs of the converter; indicated by ‘MUTE’ in display window, in the bottom right corner. This control should be...
  • Page 13 (see instructions under ‘Settings Menu’ on page 16). DSD or PCM Modes When you select a DSD music file, the DAC9 Note automatically switches to the DSD 1X or The installed 6H30 vacuum tubes have 2X modes.
  • Page 14 Operation System Settings - Menu Tree...
  • Page 15 Operation Note Settings Menu For the following menu settings, please refer The DAC9 has been designed with a simple, to the menu tree on page 14 for examples intuitive menu to allow adjustment of of the front panel display. the various features of the converter.
  • Page 16 DSD music files. button. Continue to press the ‘OPTION’ button to change the display brightness to Filter The DAC9 offers two different digital your preference. Once you have selected filter algorithms, labeled ‘FAST’ and the appropriate brightness, there is no need ‘SLOW’.
  • Page 17 Operation Input Naming Note The DAC9 is pre-loaded with a selection The auto shutdown feature is not in of names which can be assigned to the the signal path of the converter and five inputs of the converter, allowing for has no deleterious sonic effect.
  • Page 18 Perform the following operations with the DAC9 disconnected from the PC. Note If you have had another Audio Research driver installed on your PC, please see page 25 for instructions to uninstall any previous driver versions before installing the new version.
  • Page 19 Software Installation Open (unzip) the new USB DAC driver folder and install the new driver, using the “setup.exe” program, highlighted in the previous illustration. Follow the installation steps when prompted.
  • Page 20 Software Installation...
  • Page 21 Software Installation You will have the option to complete the process by connecting the DAC9 at a later time if you choose. If so, click finish. Otherwise, when prompted during the install, connect the DAC9 to a USB 2.0 H.S. or USB 3.0 port on your PC system.
  • Page 22 After the audio output driver is installed, your system drivers are configured and ready to play audio source files. Also, when the DAC9 is connected and powered up, within the Windows: Control Panel/ Device Manager, you will be able to see the presence of the “DAC USB DEVICE”:...
  • Page 23 Software Installation If you open the window for that device, you will see the DAC USB device properties. Click on the “DRIVER” tab to see the current revision of the driver software installed.
  • Page 24 Speaker/Mixer” popup.) Select the “MIXER” and then choose the USB DAC 1/2 in order to set the audio output path to be directed to the DAC input. (Please remember that this output path will not show up or be selectable unless the DAC9 is attached and powered up).
  • Page 25 Software Installation Removal of previous driver versions Uninstall any prior/existing Audio Research Corp. system Drivers (Windows OS). Using your PC system, find and open the Windows “Control Panel” features. Find and open the “Uninstall Programs” for your particular computer. This may be named: “Programs”...
  • Page 26 Software Installation Find and select all programs named “DAC USB Driver” or similar, whose Publisher name is “AudioResearch”, “AudioResearchCorp” or “RigiSystems AG” or similar. Select Uninstall for each program found with this identity, and follow the directions to complete this process.
  • Page 27 Software Installation After you click “Finish” you should see an updated Program listing with the driver(s) removed:...

  • Page 28: Maintenance

    Cleaning It is recommended that you replace the To maintain the new appearance of this 6H30 vacuum tubes of your DAC9 in converter, occasionally wipe the front panel sets. All of the tubes in your converter and top cover with a soft, damp (not wet) have been matched to have similar cloth to remove dust.

  • Page 30: Warranty

    Limited Warranty are listed on the Audio Research factory, along with a the warranty card accompanying the photocopy of the dated purchase receipt product in its shipping carton. The...

  • Page 31: Specifications

    Specifications Frequency Response: 6Hz - 192kHz +0/-3 dB; 20Hz - 20kHz +0/-0.15 dB. Noise Floor: >-103 dB RMS, 20 Hz - 20 kHz Signal-to-Noise Ratio: >114 dB Total Harmonic Distortion + Noise: 0.002% @ 2VRMS, I kHz balanced output IMD + Noise: 0.001% (SMPTE ratio). DAC resolution: 24 bits.
  • Page 32 3900 Annapolis Lane North Plymouth, MN 55447 www.audioresearch.com Specifications subject to change without notice. ©2016 Audio Research Corporation. Reproduction of this document in part or whole is expressly forbidden without written consent from Audio Research Corporation. 95000017 B...

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