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UNi Xonar Drivers 1.80 (post periodically updated)

Page updates/changelog:

UNi Xonar drivers are modded Windows drivers for the following cards:

  • Asus Xonar: DG, DGX, DG SI, DS, DSX, D1, D2, DX, D2X, HDAV, HDAV Slim, ST, STX, STX II, Xense.

  • Other C-Media CMI8788 audio chip based cards: Auzentech X-Meridian & X-Meridian 2G; HT Omega Claro Plus, 2, Halo, eClaro; Razer Barracuda AC-1. (view full list)


UNi Xonar Features

FAQ & troubleshooting guide (updated 27 Feb 2015)

Useful tips & suggestions | Known issues & workarounds (updated 27 Feb 2013)

UNi Xonar installer addon documentation

Having problems installing UNi Xonar drivers? Refer to this topic

Please note that these are modded drivers and there are limitations regarding how much the actual original drivers can be fixed this way.

A WORD ABOUT DONATIONS – Donation list here.

Let me first say that these drivers are free of charge for everyone. Those of you who appreciate my hard work and take pleasure in contributing, you can make a small donation (like 2 to 5$). Bear in mind you don’t donate for ASUS & C-Media intellectual property & work, you do it for the work that I have done.

CONTRIBUTIONS – Contributors list here.

Surely donating is not the only way you can support this project. You can submit your custom made skin, icon, application or any other little enchantments that can make UNi Xonar better. Lets not forget about spreading the word about UNi Xonar drivers and helping other Xonar owners.


Release notes 1.80

UNi Xonar installer changes:

  • Added DPI interface scaling to the installer.
  • Added card autodetection and if the audio card is not detected it will show an error message with possible reasons for that.
  • Improved driver cleaning. It uninstalls all copies of the Xonar/C-media CMI8788 drivers that are present in the Windows driver repository. By installing drivers with “Run driver cleaning” option you won’t be able to use “Roll Back Driver” option for the audio card in Device Manager.
  • Changed the driver installation procedure. Added a fail safe driver installer that should help in those cases where you were required to manually install the audio driver or install it in safe mode. Silent installation is always on and its user option has been removed. If standard driver installation gets stuck (does not finish after 100 sec) it is automatically closed. If standard driver installer fails to install the drivers then an alternate driver installer is launched. If that fails too, you will get notified by the installer that driver installation failed.

Driver changes:

  • Windows XP: Added support for other CMI8788 cards.
  • Windows 10: Fix for microphone not working with some cards.
  • Xonar DG, DGX, DG SI: Front Panel jack detection should now work if it did with the original drivers.
  • Fixed GX not being turned off by default in “Normal” configuration for the following cards Xonar D2, D2X, DG, DGX and DG SI.

Rev. 2 changes:

  • Improved and fixed some problems with the new driver installation procedure.
  • Added different messages based on why installation failed.
  • Fixed “Front Panel Microphone” not working by default.

Rev. 3 changes:

  • Increased the delay between driver cleaning and driver installation procedures. Might help in some installation failing cases.
  • Fixed the “Warning: Windows running in Test Mode or with Disable Driver Signature Enforcement is required!” message not showing up if needed in combination with the detected audio card.

The 1.80 drivers come in two variants:

  • 1.80a “Standard”

Driver for all supported cards. Replacement for 1.75a driver. Includes 1816 audio drivers for Win XP and 1823 audio drivers for Windows Vista/7/8/8.1/10.

Driver changes:

  • Windows Vista/7/8/8.1/10: Updated audio driver to 1823 (built date: 2 Jun 2015).
  • Includes updated driver installer, ASUS Audio Center and C-Media Panel.

Other notes:

  • 1823 audio drivers are the first drivers released for Windows 10 by ASUS/C-Media. Whether they perform any better than 1822 or STXII 11.5 drivers remains to be seen.
  • Xonar STX II cards: Drivers work with STXII cards but the changing audio settings may not work with ASUS Audio Center and only with C-Media Panel. Installation on Windows Vista/7/8.1/10 x64 requires Windows running in Test Mode or with “Disable Driver Signature Enforcement” option.
  • 1.80b “STXII”

Driver maily for STX II and  STX II 7.1 cards. It does work for the other UNi Xonar supported cards too. Replacement for 1.75b driver. Includes STX II version 11.5 audio drivers (built date: 18 Feb 2014).

Driver changes:

  • Includes updated ASIO (, driver installer, ASUS Audio Center and C-Media Panel.
  • Windows XP: Drivers now work for all UNi Xonar supported cards. These were not working with 1.75b drivers.

Other notes:

Rev. 2 changes:

  • Fixed “Asus Audio Center” not working properly and getting replaced by C-Media Panel when installing with “Normal – Asus Audio Center” configuration.

Rev. 3 changes:

  • Fixed some installation issues when drivers were installed on STXII cards (like missing driver uninstall entry in Programs and Features,  incorrect C-media panel name).
  • Fixed a bug where optimal card configuration was not being applied if the drivers were installed without the “Re-enable stereo upmix” option.


Release notes 1.75

UNi Xonar Installer changes:

  • Various changes and improvements done to the UNi Xonar installer.
  • Added warning message if installing the drivers would require Test Mode.
  • XonarSwitch is now automatically closed before installing the audio drivers.
  • Improved “Apply addons” function. Included .inf files from the drivers can now be dynamically altered. Documentation can be read here. Applying new 1.75 compatible versions of addons (like DHT4) will display the proper audio driver version now and users could now choose which addons they want to install once these are added to the Uni Xonar installer location.

Known issues:

  • GX is not turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.

The 1.75 drivers come in two variants:

  • 1.75a “Standard”

Driver for previously supported cards. Same audio drivers as those in 1.72 (1816 for Win XP, 1822 for Windows Vista/7/8/8.1/10).

Rev.2 changes:

  • Fixed ASUS and C-Media Panels not working in Win XP.
  • Includes updated driver installer and C-Media Panel.

Known issues:

  • The installer is showing “Warning: Test mode to be enabled!” message by mistake if Xonar Xense selected as card.

Possible issues:

  • Missing Dolby Pro-Logic IIx options from C-media Panel. If you have this issue, you can use the “C-media Panel v1.62” installer addon or install v1.72 drivers.
  • 1.75b “STXII”

Driver mainly for STX II and  STX II 7.1 cards. It also works with UNi Xonar previously supported cards.

Rev.2 changes:

  • Fixed issue where installer did not apply the correct audio settings (e.g. to fix surround echo). Anyone who installed the previous 1.75b drivers should install the 1.75b rev.2.

Driver changes:

  • Includes updated ASIO ( , ASUS Audio Center and C-Media Panel.
  • Includes STX II version 11.5  audio drivers (created on 18 Feb 2014).

Other notes:

  • These drivers will work with the previously supported Xonar cards on Win Vista/7/8.1/10 but may require that you enable Windows Test Mode on 64 bit OS.
  • These drivers do not work for the other Xonar cards on Windows XP.

Known issues:

  • ASIO in 64 bit mode does not work. The cause of this issue is the 64 bit asio  dll file from the original STXII drivers.


Release notes 1.72

These drivers bring Windows 8.1 support.

Driver changes:

  • Updated audio driver to version 1822 for Windows Vista/7/8/8.1. Still using 1816 for Windows XP.
  • Includes updated driver installer, ASUS Audio Center and C-Media Panel.

Other notes:

  • New icon for UNi Xonar installer. Thanks to propheticus for his contribution.
  • ASUS Audio Center and C-Media Panel tray icons now have higher resolution icons. Useful for >100% DPI settings.

Release notes 1.71

Driver changes:

  • Updated audio driver to 1821 for Windows Vista/7/8  and 1816 for Windows XP.
  • Includes updated driver installer

UNi Xonar Installer changes:

  • Fixed some issues with Driver cleaning module
  • Improved and fixed some potential issues with UNi Xonar Installer

Known issues :

  • C-media Panel: Enabling and disabling “7.1 Virtual shifter” option disables stereo upmix. Use “Stereo upmix switch” to re-enable it or you can use the C-media Panel v1.62 addon (it will revert to an slightly older C-Media Panel version)
  • In some cases,  WASAPI exclusive playback is interrupted by playback from other audio applications. More details here.  Fix: If you don’t use S/PDIF, disable Digital Output from Control panel->Sound. It’s confirmed that the audio drivers included in 1.70 don’t have this issue.
  • Win Vista/7/8, there are reports that you cannot play sound through S/PDIF and headphones at the same time.


Release notes 1.70

Driver changes:

  • For Windows Vista/7/8 it includes 1818 audio drivers. For Win XP it includes 1814 audio drivers.
  • Includes updated versions of Updated C-media and Asus panels.
  • Fixed HTOmega Claro 2 driver support.
  • Fixed driver signature issues for the other non-Xonar cards that were present in previous release.

UNi Xonar Installer changes:

  • Added option to apply addons at driver installation.
  • Improved Low DPC Latency option. Now it allows access to C-media Panel as well. And Asus Audio Center won’t autostart after driver installation like it previously did.
  • Improved Driver Cleaning process. Now it will clean the Panel and HsMgr(GX) processes startup entries too.
  • Reduced the overall installer size (from 13MB to 7MB)
  • Replaced Windows XP driver installer with the same one that’s being used in Windows 7. Please report if there are any malfunctions compared to previous UNi Xonar driver releases.
  • Removed “1777 drivers + Asio 1.0”. This option lives on as an addon.
  • Rev 2: Applied all UNi installer fixes from 1.71

Known issues :

  • C-media Panel: Enabling and disabling “7.1 Virtual shifter” option disables stereo upmix. Use “Stereo upmix switch” to re-enable it or you can use the C-media Panel v1.62 addon (it will revert to an slightly older C-Media Panel version)


Release notes 1.64 rev.2

  • All the improvements and changes done to the UNi Xonar installer from 1.7x versions have been incorporated into this release (like support for addons).
  • Updated C-Media Panel with the one included in 1.72 release.

Other notes:

  • New icon for UNi Xonar installer. Thanks to propheticus for concept and contribution.
  • ASUS Audio Center and C-Media Panel tray icons now have higher resolution icons. Useful for >100% DPI settings.

Read Previous Release Notes


Notes about Windows 10 RTM compatibility (updated 28 Nov 2015)

UNi Xonar drivers above v1.64 will work in Windows 10 but since the audio drivers are not yet made specifically for Windows 10 there could be some issues that you could run into depending on audio settings used. Different drivers could work differently so if you encounter any issues try installing the other UNi Xonar versions.

Apart from driver issues there could be issues solely from Windows 10 sound system that would be fixed with future Windows updates. There is also a small chance that some things could break with future Windows updates.

Update 28 Nov 2015: The Windows 10 Threshold 2 update does not seem to fix many of the sound issues that where present so far and it may introduce new ones. In my opinion Windows 10 is a very buggy OS, the only things working fine are the spying of its users(#1, #2) and the periodic removal of user preferences and programs(#1, #2, #3, #4).

Update 19 Oct 2015: The audio fixes from Insider Previews >= 10547 will probably be included in the upcoming “Threshold 2” update that will be released around November 2015.

Update 1 Oct 2015: The Windows 10 development team is fixing some audio issues with Windows 10. The fixes where made available for testing starting with Windows 10 Insider Preview build 10547.

100% compatible drivers when?

Because of the very slow development of the audio drivers by C-Media and the long time it takes for C-Media partners (ASUS and HTOmega) to release the new drivers it may take a while before we have a 100% compatible driver for Windows 10.  If we are lucky we will have new audio drivers in 2-3 months after Windows 10 RTM launch. As soon as new audio drivers became available I will release a new UNi Xonar drivers package.

Update 01 Oct 2015: 1823 audio drivers are the first drivers released for Windows 10 by ASUS/C-Media. Whether they perform any better than 1822 or STXII 11.5 drivers remains to be seen.

About Chrome stutter issues on sites like YouTube. (27 Aug 2015)

Update 27 Aug 2015: The stutter issues on youtube are  fixed with the latest Chrome build released on 20 Aug 2015 (v 44.0.2403.157). Reports indicate that stutter issues are still happening for videos on other websites (eg. daily motion, facebook, instagram).

Update 7 Aug 2015: After some testing and some reading it seems that the stuttering issues are not related to the UNi Xonar drivers. I’ve got the same behavior with Realtek’s onboard audio and from what it looked liked. My guess the issue is caused either by Windows 10 or Chrome.

There is a Chromium issue opened here.

Here are some things you could try:

  • Change Chrome audio buffer size.
  • Change/keep sample rate to 44.1 kHz both in the audio panel and Windows Volume->Playback devices->(…) Audio Device Proprieties -> Advanced -> Default Format.
  • Change sample rates back and forward a couple of times.

Driver Downloads (for Windows only):

  1. UNi Xonar 1816/1823 v1.80a r3      mirror1
  2. UNi Xonar STXII 11.5 v1.80b r3      mirror1
  3. UNi Xonar 1816/1822 v1.75a r2       mirror1      mirror2
  4. UNi Xonar STXII 11.5 v1.75b r2       mirror1      mirror2
  5. UNi Xonar 1816/1822 v1.72    mirror   
  6. UNi Xonar 1816/1821 v1.71    mirror
  7. UNi Xonar 1814/1818 v1.70   mirror   
  8. UNi Xonar 1814/1815 v1.64 r2   mirror    (proven stable)
  9. Older versions : v1.63 beta; v1.62 betav1.54 ; v1.61 ; v1.53

Official addons (documentation):

  1. “1777 drivers + Asio 1.0” aka “ASIO 1.0 Patch”. Info.
  2. C-media Panel v1.62 (fixes stereo upmix turning off for v1.64 rev.1 drivers)

3rd party addons page here.

Standalone applications for changing settings : 

1. Standalone apps pack* (mirror). Legacy, preferably use XonarSwitch with separate profiles instead. Contains :

    1. Front panel switch v3.2
    2. SampleRate switch v1.2
    3. Microphone Array Enabler v1.1 – Might be useful if you have an microphone array
    4. HDAV HDMI enabler v1.0 – This application hasn’t been tested please submit feedback if it works or not. It appears it is not needed anymore.
    5. Acoustic Echo Cancellation enabler v1.0 – Useful for other Cmedia 8788 based cards that lack this setting
    6. Stereo upmix switch v1.0
    7. 7.1 virtual speaker shifter enhanced profile v1.0 – Profile created by Cu. This profile should enhance the effect of positioning in games when using Dolby Headphones and 7.1 virtual speaker shifter. Please provide feedback about this profile. Demo.
    8. Headphones ohm Amp switch v1.0  – Works only with the cards that support this.

*All these apps are based on scripts created by Virus. Before running the files, close any audio source/application.

2. Other Xonar related applications:

    1. Front Panel switch new versionmirror (by Virus; notes)
    2. ASIO settings viewer/changer (external link)
    3. Audio re-starter for sound loop problem for Win Vista/7/8 by Razord93 (external link)
    4. Xonar-EQ – Control Xonar equalizer settings from your Android phone or tablet. By Sascha.
    5. UNi Xonar driver cleaner v1.01


  1. PEZ27    25 Nov 2015 @ 04:25   

    Recently upgraded to a Skylake build and it seems that if my RAM is clocked higher than 2500mhz, I get insane latency and audio clipping.
    My RAM is rated at 3200mhz, and it runs stable, but the audio issues are unbearable. Got a new RAM kit coming just to play around some, but has anyone else ran into this issue when dealing with overclocked RAM?


    • Tuoni    26 Nov 2015 @ 10:30   

      6700K @ 4.5GHz with 4x 8GB DDR4 @ 2666MHz and no problems here with audio.
      Not that excited about my Skylake build though.. it’s more that i had to then that i actually wanted to and is more a side grade at best then an upgrade form what I had before.

      Windows 10 TH2 seems to have started a whole new avalanche of compatibility and driver/software issues not in the last place in the audio department. Guess that is the price we “early adopters” pay.
      Personally i would say to stick with Windows 8.1 until DX12 actually becomes relevant and hopefully Windows 10 will have matured in that time too.


  2. somch    27 Nov 2015 @ 04:42   

    i want to buy xonar dgx but dont know whether my motherboard supports it or not.??
    could anyone shed some light on it






  3. Arturo Meneses    27 Nov 2015 @ 12:04   

    Dear Sir,
    On the official Asus page the Xonar Essence STX drivers ( Version ) is not listed anymore as a beta, should I surmise that this is the definitive version?


    • CarvedInside    27 Nov 2015 @ 16:13   

      Beta and non-beta 1823 drivers are exactly the same.
      Besides that, when it comes to ASUS Xonar drivers any driver is beta quality.


  4. Western    27 Nov 2015 @ 21:11   

    I want to buy Asus XONAR-DX Sound Card.some frnds told me my pc specs is not support this card
    plz see my specs give me answer ASAP sir.

    Intel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz
    Mainboard Model = D945GCCR
    Dual Core Model
    2 GB Ram


    • CarvedInside    28 Nov 2015 @ 01:53   

      Depends on whether you have a dual slot video card or not. A dual slot video card will occupy the slot(PCIe) needed for the DX.
      You could go for the D1 which uses a different slot(PCI).


  5. Aidan357    29 Nov 2015 @ 00:20   

    Hi again, had an odd problem the past couple weeks. The Hata region unload box started popping up for me but only after I added the audio center .exe to the startup folder (\Windows\Start Menu\Programs\Startup, copy-pasted into it). The reason I added it is because it stopped loading with windows for whatever unknown reason. Now I’m trying to figure out how to get it to start with windows again without putting it in the startup folder, as it being in there seems to cause the Hata box to pop up, which then makes the right click menu of the icon blank, and double-clicking it covers fills the screen with an invisible wall of sorts. I tried using different driver versions but it kept happening, but only when the shortcut was in the startup folder.


  6. Jeff D    29 Nov 2015 @ 00:52   

    I am not currently running the unified drivers, just the official drivers for windows 8.1. I am using the card as pretty much an optical line out to my receiver. I have noticed that NONE of the equalizer and other sound adjustment features in the xonar panels have any effect on the line out sound. Is this intended? Are the unified drivers the same way? Is there an alternative EQ program that will work for my SPDIF out?


  7. Den    29 Nov 2015 @ 11:16   

    Hello, I have Xonar D1, Why the driver UNi Xonar 1816/1823 v1.80a r3 does not include ASIO ( and what is the difference between versions ASIO ( and ASIO (


  8. Sasa P.    29 Nov 2015 @ 13:03   

    Hey guys, what is now with the (ASUS STRIX SOAR, ASUS STRIX RAID PRO and ASUS STRIX RAID DLX) ? Are this Soundcards better than a ASUS XONAR DX and will it become new driver updates ?
    Tanks :))


    • CarvedInside    29 Nov 2015 @ 18:24   

      Asus Strix series are totally different cards than Xonar series, they use a different maker for the audio chip, thats why they are named differently. I don’t think they will be any better than Xonar cards. Any Asus product that relies on firmware/bios/drivers for functioning has major problems except maybe their video cards which rely on NVIDIA or AMD for drivers.
      I won’t make or mod any drivers for Asus Strix cards.


      • HunterZ    29 Nov 2015 @ 19:26   

        Xonar DX has firmware too. Does the Strix get a firmware load from the driver at startup or something? I have a USB-MIDI adapter that does that, and it’s annoying.


        • CarvedInside    29 Nov 2015 @ 20:05   

          From what I know the PLX bridge on the Xonar DX has a firmware and the audio chip has another or maybe I am wrong and the cards firmware includes the PLX bridge part to. Every device has some kind of firmware/bios but the complexity of the firmware depends on the complexity of the device and how much of that device functions are done by its driver or its firmware.

          I don’t know about Strix firmware load. I think it’s on the card. I never heard of firmwares loaded from the drivers at startup.


  9. Anatoli    29 Nov 2015 @ 20:55   

    I have an Asus Xonar DGX device running on Windows 10 Pro 64Bit. I recently noticed that the Asus Xonar software doesn’t want to load up, so decided to reinstall it, but it seems the software cannot detect my card. It simply displays a message “Can’t find any device”. I also tried with the UNi software, doing driver clean-up. Still, Device Manager shows the card correctly, there is sound, but the Xonar Audio Center software shows the same error “Can’t find any device”. I tried the Xonar Switch software and it seems that settings work from there.

    Any idea what could be the issue with the Xonar Audio Center?


    • CarvedInside    30 Nov 2015 @ 01:03   

      Hi. Check to see if your cards hardware ID was overwritten.
      Please mention which drivers have you installed and if you’ve updated Windows 10 to the newest build (Build 10586).


      • Anatoli    30 Nov 2015 @ 01:37   

        Hi, thank you for your quick reply:

        I tried latest drivers from Asus Xonar DGX page for windows 10 (1823) and also installed latest UNi drivers (1.80a r3).
        HWID: PCI\VEN_13F6&DEV_8788&SUBSYS_85211043&REV_00 (seems OK)
        My Windows version shows Build 10240


        • CarvedInside    30 Nov 2015 @ 03:46   

          Maybe the antivirus that you have installed is deleting some files from the installation. Check virus (and quarantine) log. Try reinstalling the drivers with antivirus paused and see if you still get the error.


  10. bob    29 Nov 2015 @ 21:56   

    I downloaded 1.80a r3 and I can’t find the add-ons. Where is the icon?


  11. y0d4    29 Nov 2015 @ 22:45   


    i have issue with dpc latency with new asus driver Version and also new uni xonar 1823 v1.80a r3
    I believe you know how that is manifest…
    Is there solution for this?

    thank you.


    • CarvedInside    30 Nov 2015 @ 01:15   

      Unfortunately there isn’t a reliable way to measure DPC latency on Windows 10, the LatencyMon tool isn’t that good, for example is says that my system has problems playing audio/video in real-time but my system is working perfectly fine. If you don’t have audio stutters or audio/video desyncronizations when playing movies or playing games your system might be fine too.
      For lowering DPC latency you could install the drivers with Low DPC Latency, avoid Asus Audio Center for changing settings and you could read and apply the advices in Part II of the The case of DPC Latency article.



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