Important notice: kX Project was started more than 15 years ago, in 2002. kX driver allowed thousands of people to better use their sound cards for DSP, playback and recording, ASIO and so on. We are very glad to have been with you these years. But now it is time to go on. This web site will be permanently closed in November, 2018. Full source code for the driver, as well as pre-compiled driver binaries will be available from github. Please update your bookmarks.
Thank you for being with us all these years.
- E.

Welcome to the kX Project

The kX Project is an independent development project, focused on providing free WDM Audio Drivers for kX-Compatible sound cards. Read our Mission statement for a quick introduction.

The kX Audio Driver is an independent WDM (Windows Driver Model) driver for all EMU10K1 and EMU10K2-based soundcards manufactured by Creative Technology Ltd. and/or E-mu Systems Inc., including the SoundBlaster Live! series, the E-mu Audio Production Studio (APS) card, and the Audigy / Audigy2 series of cards. (Full List).

The kX Audio Driver package includes driver system files and setup files as well as a powerful audio mixer application (the kX Mixer), which acts as a Graphical User Interface, providing access to many of the driver's internal functions. The following features are either fully supported or partially supported in the latest release of the kX Audio Driver:

  • Wave Recording & Playback
  • MIDI Synthesizer (Soundfont-based) and MIDI UART In/Out
  • DirectSound 2D and DirectSound 3D
  • Full ASIO and GSIF support
  • DSP Microcode Loading/Unloading
  • Full AC97 codec control
  • AC3 Software Decoding

The kX Driver is FREE and will remain FREE. Please note that you can always encourage development by making a donation to the kX Fund. As one of our contributors has pointed out, if all satisfied kX users made even a very modest donation (say $10 each), it would go a long way towards deferring our costs and would further encourage development of new features (and elimination of old bugs).

Certain parts of this site are available in different languages (see the buttons above) - online preset management system

Latest driver version

Windows: - download download

1.11b0 - download download

Guides and Articles

Dane Programming Guide»...
Playback/recording guide»...
RemoteIR »...
Contribute to kX! »...
User feedback »...
Audigy2/P16V signal flow »...
RMAA benchmark results »...
Direct Recording Guide »...
IO Assignments »...
kX Guide»...
Routings guide »...
Translation guide »...
ACPI Issues Explained »...
VIA 686B Issues »...
Windows XP / 2000 installation guide »...
Swap Front and Rear explained »...

Recent news:

The project and this site are no longer maintained on a regular basis. Please visit our forums for recent updates.
  • 11/16/2015 - Web site updates
    Web site has been slightly re-organised, Knowledgebase and Downloads sections should now point to GitHub. Fixed some dead links.

  • 12/28/2013 - kX driver opensource on github
    kX audio driver released opensource on the github.

  • 03/20/2010 - Site updated.
    Changed site encoding to UTF-8
    Transferred the domain name to our hosting servers, '' should now work directly.
    Updated several web pages, removed invalid links.

  • 09/18/2009 - Version (BETA) released.
    Refer to Changelog for details.
    This version should fix problems with PCs with more than 2Gb or RAM.

  • 28/07/2009 - Version (BETA) released.
    Refer to Changelog for details.
    This version improves support for E-DSP cards, and also includes updated SDK.
    Windows 7 should also be supported.

  • 04/19/2009 - Version (ALPHA) released.
    Refer to Changelog for details.
    We are proud to announce x64 support. Vista x64, Windows XP X64 and Windows 7 are supported.

  • 07/17/2008 - Version (BETA) released.
    Refer to Changelog for details.
    Added support for 24-bit playback and recording for most 10k2-based devices (ASIO mode).
    E-DSP devices are now fully controllabe via E-DSP Control Panel.

  • 05/28/2008 - Version (BETA) released.
    Refer to Changelog for details.
    Added bit-accurate 24-bit playback for 10k2-based devices (WinMM mode).
    Whole range of E-mu E-DSP cards is now supported.

  • 04/05/2008 - Version (BETA) released.
    Refer to Changelog for details.
    3540 users are encouraged to update their driver.

  • 03/28/2008 - Version (BETA) released.
    Refer to Changelog for details.

  • News Archive

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