dCS Bartók DAC User Manual Software Issue 1.0x
February 2019
Bartok DAC Manual v1_0x Page 22 English version
STEP 4 – Using the USB1 interface with a computer
If you do not want to use a computer, you can miss out this step.
Compatibility
The USB1 interface can be connected to Windows™ 10, Windows™ 8.1, Windows™ 7 (SP1), Mac™
OSX (10.5.4 or later) PCs or a sound server, running software to stream PCM data.
The interface should work with Linux Ubuntu servers and computers fitted with USB 2.0 interfaces that
natively support USB Audio Class 1 or Class 2 operation, but this has not been extensively tested.
Setting the USB Audio Class
There are two USB Audio classes, one of which must be set during system set-up. The DAC is
shipped set to USB Audio Class 2.
USB Audio Class 1: The interface operates without a special driver at up to 96kS/s.
To select Class 1, open the menu, navigate to the Unit Settings > USB Class menu page.
The button sequence is: Menu, ►, ►, Menu, ◄, ◄, ◄, ◄, ◄ and then use the Menu
button to select the Class 1 icon.
USB Audio Class 2: The interface operates at up to 384kS/s (including DSD/128 over PCM).
For Mac OSX, version 10.6.3 or later is required.
Windows 10 Creator’s Edition supports Class 2 operation.
For earlier version of Windows, the dCS USB Class 2 Driver 2018 must be installed onto the
computer before use (see below).
To select Class 2, open the menu, navigate to the Unit Settings > USB Class menu page.
The button sequence is: Menu, ►, ►, Menu, ◄, ◄, ◄, ◄, ◄ and then use the Menu
button to select the Class 2 icon.
If an older version of the dCS USB Class 2 driver is installed on your Windows PC,
please un-install it and install the current version.
Loading the Windows driver for USB Class 2
• If ASIO4ALL or any other ASIO driver (e.g. for a sound card) is loaded on your computer, please
uninstall it - otherwise the dCS driver will not work correctly.
• Make sure the DAC is set to USB Class 2 - otherwise the driver installation will fail.
• Power up the DAC and the computer.
• Connect the DAC’s USB1 port to the computer’s USB port.
• Go to http://dcsltd.co.uk/products/bartok-DAC/, click the Support link and download the dCS USB
Audio Class 2 Driver 2018.
• Unzip the file to a temporary directory and run the file.
• Follow the on-screen prompts.
• Wait until installation is complete, then re-start the computer.
!
If you connect the DAC set for USB Audio Class 2 to a Windows computer without first
loading the driver, the interface will not operate.
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