The XMOS USB Audio firmware supports both USB Audio Class 1.0 and USB Audio Class 2.0.

Apple OSX version 10.6.4 and above natively supports USB Audio Class 2.0 – no driver install is required.
Windows, however, only provides support for USB Audio Class 1.0. To use a USB Audio Class 2.0 device under Windows requires a driver. XMOS therefore provides a free Windows USB Audio driver for evaluation and prototyping, a free stereo-only driver for production, and a path to a more feature-rich multichannel production driver from Thesycon.

Evaluation and production Windows drivers are also available from our partners CEntrance or Ploytec.

NOTE: XMOS does not provide drivers for third party USB products, even if they use XMOS USB chipsets internally. If you need a driver for your USB device, please contact your supplier who will be able to provide you with a drivers for their product.


  Evaluation / Prototyping Production
  Evaluation Driver XMOS Stereo Driver Thesycon Driver
Features USB Audio Class 2.0 & 1.0 asynchronous operation
Technical Audio channels Multichannel in/out Stereo in/out Multichannel in/out
Sample rate 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 358.2kHz, 384kHz
Sample depth 16, 24, 32bit, floating 32bit1 16, 24, 32bit 16, 24, 32bit, floating 32bit1
DSD Native DSD
DSD over PCM (DoP)
DSD over PCM (DoP) Native DSD
DSD over PCM (DoP)
Clock domains Multiple Single Multiple
Latency / buffering Adjustable
Down to 3ms round trip
Fixed, safe setting Adjustable
Down to 3ms round trip
ASIO ASIO 2.2, multiple clients ASIO 2.2, one client ASIO 2.2, multiple clients
WDM / DirectX MME, DirectSound, WASAPI
MIDI Yes No Yes
DFU Yes. Supplied with customizable DFU wizard application
OS Support Windows 7, 8, 8.1, 10 (32 & 64bit)
Customisation PID / VID XMOS VID
XMOS assigned PID, EVK PIDs
Customer supplied VID & PID
Branding Thesycon XMOS Customizable splash screen, strings and icons
Control panel Yes Yes
(Read-only information)
SDK with C++ API
Code signing Thesycon VeriSign XMOS VeriSign Customer supplied certificate
Terms Cost Free Free License fee
Restrictions / Licensing XMOS designs only.
Locked to XMOS VID & PIDs.
Evaluation and prototyping.
Fully featured evaluation
version of Thesycon
production driver.
Beep tones every 5minutes
after 60minutes.
XMOS designs only.
assigned customer PID.
Available after purchase of
at least 150 XMOS devices.
Maximum use of 10,000units.
Registered email linked to
legal entity.
Various licenses available
including unlimited and
royalty free.
Support Standard XMOS support Standard XMOS support Thesycon support contract
Deliverable EXE driver installer & kit2 EXE driver installer Customization kit
Availability Download Request Thesycon

1 Feature supported by the driver, but not by XMOS firmware.

2 The download package (EXE) contains the evaluation driver, but does not automatically install the evaluation driver.

– Attach the board using the USB connector.

– Go to C:\Thesycon\TUSBAudio_v4.11.0_2017-05-16\EvaluationKit\DriverPackages (or the location that you installed the driver).

– Execute XMOS_EVAL_KITS_DEMO_DriverSetup_v4.11.0_2017-05-16.exe, to install the driver.

– Click the red ‘T’ icon that has been added to the Task Bar to open the Thesycon Control Panel. The window shows all attached XMOS USB devices.

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