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Ayre QA-9 Owner's Manual

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Ayre QA-9
Owner's Manual
Analog-to-Digital Converter

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Summary of Contents for Ayre QA-9

  • Page 1 Ayre QA-9 Owner’s Manual Analog-to-Digital Converter...

  • Page 3: Table Of Contents

    Table of Contents Ayre ..... . . 2 Welcome to Introduction ....3 Overview and Installation .

  • Page 4: Welcome To

    Welcome to Ayre Your Ayre QA-9 offers a significant advance in the musical performance of high-fidelity equipment. The warmth and immediacy of a live performance are apparent from the first listening. The combination of superb resolution and a natural, relaxed quality will draw you into the music, time and time again.

  • Page 5: Overview And

    PC with unprecedented fidelity and realism. The QA-9 is available in two versions, both covered in this manual. The standard version include both USB and AES/EBU digital outputs and will meet the requirements of virtually all users.

  • Page 6: Connections And

    Connections and Installation The Ayre QA-9 is easy to connect and use. The following guidelines will ensure that the installation goes smoothly. Analog Inputs The Ayre QA-9 offers balanced inputs. Balanced connections are made via three-pin XLR connectors. High quality singled-ended-to-balanced adapters are included for single-ended analog sources.
  • Page 7 When the USB output is active, the AES/EBU output is disabled. DSD Output (QA-9 Pro only) The Ayre QA-9 Pro also offers conversion to digital using Sony’s single-bit DSD system. Two DSD interface formats are available to ensure compatibility with the widest range of equipment, SDIF-2 (DSD-Raw) and SDIF-3.
  • Page 8 Word Clock Outputs (QA-9 Pro only) Digital studio equipment with word clock inputs Ω can be slaved to the QA-9 Pro with 75 coaxial cable(s). The transformer-isolated BNC connectors present TTL-level signals derived directly from the ultra-low jitter master clock inside the converter.

  • Page 9: Configuring The Computer

    Audacity (Apple, Windows, and Linux), ProTools (Apple and Windows), or Audition (Apple and Windows). Additional information on setting up your computer for use with the QA-9 and QA-9 Pro A/D is available at the Ayre website: www.ayre.com/usb.htm...

  • Page 10: Optimization And

    Optimization and Customization While the Ayre QA-9 A/D is typically configured with your recording software via the USB connection, the AES/EBU settings and other options are configured with small toggle switches accessible on the rear of the unit. AES/EBU Sample Rate...

  • Page 11: Digital Filter

    This setting applies to both the USB and AES/EBU outputs. Display Brightness The front panel display of the QA-9 has two brightness levels. The switch position labeled “Bright” will make the display readable in all conditions. Setting the switch to the position labeled “Dim”...
  • Page 12 Word Clock Outputs (QA-9 Pro only) To enable the word clock outputs at the rate indicated on the front panel display, set the switch to the position labeled “WCk En”. Switch position “WCk Dis” will turn all the word clock outputs off.

  • Page 13: Controls And

    Controls and Operation The Ayre QA-9 A/D uses a zero-feedback, variable-gain analog circuit to adapt to a wide range of input signal levels. This allows the full dynamic range of the analog source to be realized in the digital recording.
  • Page 14 It is recommended to set the audio level prior to recording by playing a loud passage from the analog source. Adjust the QA-9 gain so that the peaks occasionally illuminate the amber LEDs but not the red clipping LED. If the red clipping indicator LED(s)
  • Page 15 A green LED to the right of the numeric display indicates the USB status and will be lit when there is an active USB connection. A red LED to the left of the numeric display indicates that DSD output mode has been enabled. When the green “USB”...

  • Page 16: Numbers And

    Numbers and Specifications Analog Input Impedance 2 MΩ (1 MΩ per phase) Analog Input Sensitivity 10.0 Vrms – at minimum gain 0.75 Vrms – at maximum gain Analog XLR Input Polarity Pin 1 = Ground Pin 2 = Non-inverting (Positive) Pin 3 = Inverting (Negative) USB Audio Output Signal Class 2...
  • Page 17 Dimensions 8-½" W x 11-½" D x 3" H 21.5 cm x 29 cm x 7.5 cm Weight 5 pounds 2.3 kg...

  • Page 18: Statement Of

    Warranty Registration Card and a photocopy of your original purchase receipt in the enclosed postage-paid envelope to Ayre within thirty days of product delivery. This optional warranty is only available within the thirty-day registration period.
  • Page 19 Ayre Acoustics, Inc. 2300-B Central Avenue Boulder, Colorado 80301 or to Ayre’s authorized agent. The product must be accompanied by a written description of the defect and a photocopy of your original purchase receipt. Ayre will not be responsible for any shipping damage and strongly recommends the purchase of shipping insurance.

  • Page 20: International Warranty

    5. The above warranty is the sole warranty given by Ayre, and is in lieu of all other warranties. All implied warranties, including warranties of merchantability or fitness for any particular purpose shall be strictly limited to the duration of the above warranty.

  • Page 21: A Place For

    A Place for Notes Serial Number: ________________________________________ Purchase Date: ________________________________________ Dealer: ________________________________________ Salesperson: ________________________________________...
  • Page 22 Rev. 1.2...
  • Page 24 Ayre Acoustics, Inc. 2300-B Central Avenue Boulder, Colorado 80301 www.ayre.com +1-303-442-7300...

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