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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 2 Sep 2016)

Useful tips & suggestions | Known issues & workarounds (updated 22 Mar 2016)

UNi Xonar installer addon documentation

Having problems installing UNi Xonar drivers? Refer to this topic

Poll: Rate ASUS Xonar driver support

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.

Possible issues:

  • Microphone stops working if running specific programs. If you run into this issue please report it in a reply to the original report. If you run into the issue you can switch to v1.75a drivers or connect the microphone to the onboard audio card microphone input.
  • WASAPI playback issues might occur with some soundcards
  • Occasionally when waking PC up from sleep the Xonar card does not output any sound.
  • 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.

Possible issues:

  • Microphone stops working occasionally or when changing audio playback settings (DS->WASAPI). If you run into this issue please report it in a reply to this comment. If you frequently run into the issue you could try v1.75a drivers if possible or connect the microphone to the onboard audio card microphone input.


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 compatibility (updated 30 Aug 2016)

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 30 Aug 2016: Thank you for the feedback so far. Based on the feedback received there shouldn’t be any problems installing the drivers on Windows 10 Anniversary Update (build 1607) whether it’s an upgrade or a new installation. One user reported that audio card was recognized only when installing the drivers when booting with Disable Driver Signature Enforcement option. Apart from drivers installation aspect, this new Windows build brings new problems for some users like the following reported ones: crackling or loud popping sound in the speakers, audio card not being detected sometimes or disappearing in Windows and 5.1 analog not working. For those of you who started having problems only after the Anniversary build upgrade you could roll back to a previous Windows 10 build (#1, #2). If that is not possible you can download a older Windows 10 build from here and install it without a internet connection present. To prevent upgrading to build 1607 you need to disable “Windows Update” service from Control Panel->Administrative Tools->Services.
  • Update 3 Aug 2016: Microsoft made changes to driver signature policy with the Windows 10 Anniversary Update (1607) that could make the Xonar drivers not working/installing anymore. There are some exceptions from this driver signature enforcement. At the moment it’s unclear to me if installing the drivers in Test Mode or with Disable Driver Signature Enforcement still works. I’m interested in hearing you experience under this discussion thread.
  • 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     – latest
  2. UNi Xonar STXII 11.5 v1.80b r3      mirror1
  3. UNi Xonar 1816/1822 v1.75a r2       mirror1      mirror2       – recommended
  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 or enhancing audio: 

1. Standalone apps pack / Mirror. Based on scripts made by Virus. Before running the files, close any audio source/application. Legacy, preferably use XonarSwitch  and configure it with separate profiles. 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.

2. Xonar related applications:

    1. XonarSwitch (beta) – Alternative panel to Asus Audio Center and C-Media Panel. Allows you to control various Xonar’s audio settings, define them as switchable profiles and apply them on-the-fly without having to stop the audio playback. By Giulio.
    2. Front Panel switch (new version) / Mirror. Release notes. By Virus.
    3. Driver re-starter for sound loop problem for Win Vista/7/8/10. By Razord93.
    4. Xonar-EQ – Control Xonar equalizer settings from your Android phone or tablet. By Sascha.
    5. UNi Xonar driver cleaner v1.01 – Standalone driver cleaner based on the one that’s included in UNi Xonar drivers.

3. Auxiliary audio applications:

    1. ASIOConfig by djdecks – ASIO configuration viewer/changer that can be used when you can’t access the Xonar ASIO Configuration directly.
    2. SoundLock – Set the maximum output volume that sounds can be at. Can replace Xonar SVN in some cases (like limiting the volume of loud noises in movies). Works on Windows Vista and newer.
    3. SoundVolumeView – Alternative to Windows Volume Mixer. Allows a finer tune of applications volume levels and offers the ability to save them as different profiles. Works on Windows Vista and newer.
    4. Equalizer APO – A parametric/graphic system-wide equalizer. Works on Windows Vista and newer.
    5. ASIO4ALL – Universal ASIO driver. Can be used instead of the ASIO driver included that’s included in Xonar drivers.
    6. MicMute – Mute microphone with a keyboard shortcut or turn your microphone to push-to-talk for any applications.


  1. Denis    07 Oct 2016 @ 08:31   

    hello, i have a question for you; i use a essence stx with asio in audio production, the last version for the stx, installed with the 1.80 r3 is ASIO; this version get great quality but lots of problems with latency;
    then i found that the STXII version has asio version with different dll name (not cmasiop.dll and cmasiopx.dll but cmasiostxii.dll and the x64 one); tried to change the name and replace it both respectively on windows/drivers and wondows/wow64, but don’t work;
    so i found over the net a cmasio version that it work very good compared with the .12 one; just the asio pannel don’t work, but with sequencers the latency has been improved alot.. i wanna ask you if there is a way to get the work with the essence stx, or also if it is possible to get the asio pannel working with the version too; thanks Denis


    • CarvedInside    08 Oct 2016 @ 01:05   

      Hello. From where you got the cmasiop You could try the ASIOConfig to see if you can access the ASIO panel.
      I wasn’t able to make ASIO driver to work with standard drivers. If you want the you should install the v1.80b drivers. You can install them on STX card by installing them with Disable Driver Signature Enforcement method or the Test Mode method. If perform better you can try the v1.75b drivers.


      • Denis    08 Oct 2016 @ 20:25   

        thanks, im testing the 1.80b with the right now, work flawesly, they perform as good as the .13, and so better than the .12 for sure; the only difference is that the asio pannel can be set just till 24bit instead 32bit like the .13, .12.. (i know the card its supposed to be 24bit, but don’t know if it can get real benefits setting at 32bit); at firsts tests seems that the 1.80b drivers are balanced bit different in wdm compared to the last 1.80a, can be? seems more spatialized, bit more bass and maybe less high equalized frequencies, but i have to test it better; however i found the cmasio on a russian forum, where some users complain about some problems with the .12 with latency too,also with >40ms compared with the .10 asio where they can go with no problem till 10ms latency, but it has not the same quality as the; then an user shared all the cmasio dlls from till the .13;


        • CarvedInside    09 Oct 2016 @ 20:43   

          Without messing with files you could install v1.75b driver that has ASIO driver and see if you have access to 32-bit bit-depth. Using a 32-bit bit-depth output might be useful only if you would play 24-bit audio files. At the moment I’m not sure if setting a 32-bit bit-depth would be beneficial if the card is hardware capable of only 24-bit playback. If you are playing 16-bit audio files then a bit-depth output of 24-bit is sufficient. You can find a explanation here.
          Generally speaking, according to RMAA DirectSound tests there aren’t major differences between the v1.80a and v1.80b drivers.


          • Denis    10 Oct 2016 @ 03:55   

            thanks for answer, usually i set asio 32bit, cause my daw work internal at that bitdepth; as now i need to remain on the last 1.80b, cause it’s sound different to the 1.80a, i can clearely hear that, and i have my ears habitued to that precise sound; anyway i found that with thoose 1.80b the asio work well with the x64 dll, but it is not recognised the x86(32bit) dll; example i can work in fl studio x64 with the, but asio wont work with that version in sound forge which still is at 32bit; so as now i mixed the cmasio dlls with the latest 1.80b drivers (.13 for x64, .12 for x86);; still don’t understand why thoose problems when changin the dlls versions, since i saw that the both ddls don’t work with the 1.80b drivers but do so good with the 1.80a


  2. Holger    08 Oct 2016 @ 13:24   

    Hello there

    I have an Asus Essenxe STX. 6 days ago i bought a complete new PC (build myself, single components) but kept my asus soundcard and my PC case. So, after installing a fresh win10 version and getting my pc ready, i noticed that my flacs won’t playback fine as before. I noticed cracking sounds I never heard before in that track. I used different media player to check. Yesterday I even got 2 bluescreens while playing Battlefield 4 with the destination “cmudaxp.sys”. I dont know excactly what the problem is, because before I build my new PC I also used the actual Win10 Version (1607) and had no sound issues at all. I already disabled my onboard sound controller (thought maybe this produces the crackling sound) but this didnt helped.

    After researching the internet I found this site. The Asus driver are extremly old and just beta status. Maybe I should use your driver. Can you please tell me, which version I have to download and what do I have to install to have something similar to the Xonar Essenxe STX Audio Center? (I am from germany, so please forgive wrong spelling 😉


    • gokmen    09 Oct 2016 @ 08:38   

      Battlefield have EAX-openal sounds like GX is on. I’d try installing low-latency or non-GX version of drivers. But, carvedInside can reply it better since he knows what cmudaxp.sys file is for.


    • CarvedInside    09 Oct 2016 @ 20:27   

      gokmen advice is good. The blue screens could be caused by the GX feature. To completely disable GX, install the UNi Xonar drivers with “Low DPC Latency” or “C-Media Panel” configuration. If you need the Asus Audio Center, it is accessible from Start Menu->All Programs->UNi Xonar. You should try with v1.80a and v1.80b.


      • Holger    10 Oct 2016 @ 15:53   

        Thanks for the answers. I just installed the 1.80a (thought b is just for stx II). Since then I experienced no more crashes in Battlefield. So, your driver seems to fixed this issue. Sadly I hear many cracks and pops in my FLACs as also in movies (MPC). I already read that this is a windows 10 problem. I definitely didnt have the problem with my old pc, where i updated windows 10 also to the actual build… Any fix possible? Or any ideas why this happens? Onboard-Sound is complete disabled.


  3. David    09 Oct 2016 @ 22:13   

    Hi guys!

    I have external amp which I want to connect to my Xonar DG. How to do it? Is there any way to disable built-in amp? My AMP has 2RCA->3.5mm jack. Any instruction on how to set this all up?


  4. Smyle    12 Oct 2016 @ 21:39   

    I installed anniversary update like 2 weeks ago, and since that I’m suffering freeze issues badly when I leave PC for a while. Now I got BSOD related cmudaxp.sys which belongs to C-Media Audio Driver (WDM)


  5. Sam    13 Oct 2016 @ 08:16   

    Has anyone ever run into a problem with loud static blaring at random when starting videos, whether it be streaming from a browser or on a video player?

    I have a Xonar DX that’s had that problem a few times and I read it’s a problem with the C-Media chip. Any ideas? I’ve been using the UNI drivers for a while, but it seems like it can happen with any driver including official. I just had it happen after a long period without problems and it nearly gave me a heart attack.


      • Sam    14 Oct 2016 @ 00:55   

        Thanks. I guess with an ASUS motherboard and Windows 10 it’s a double whammy. Do you think the static could damage a headphone amp somehow? I’m thinking of doing as suggested in the FAQ and getting an amp to control volume and set everything to 100 in Windows. And should I set both windows and Xonar driver volumes to max?


        • CarvedInside    16 Oct 2016 @ 05:09   

          There are 2 volume controls for Xonar cards, the Windows Volume that can also be controlled from Asus Audio Center and there is an additional volume control for the Xonar cards. This additional volume control is set by LEFT and RIGHT channel sliders that are under ASUS Audio Center->Mixer->Playback. I haven’t experienced myself this loud static noise so I don’t know how loud it actually is, if it’s: 1) 100% Windows Volume or 2) 100% Windows Volume + 100% Xonar additional volume. Based on that you set the volume.
          As for headphone amp damage, at least in case 1 I don’t see any reason why it would cause damage.

          If you go with the headphone amp, let us know how it goes.


          • Sam    18 Oct 2016 @ 06:20   

            Do you know if there’s anyway to recreate the static manually, so to speak? I haven’t picked an amp yet but I’m trying to see if I can recreate the problem, but no such luck. I disabled Intel SpeedStep for the winter and I feel like I haven’t experienced it since then but maybe I’m just lucky, or unlucky since I want to recreate it.


            • CarvedInside    19 Oct 2016 @ 09:32   

              From what I’ve read some people triggered it when skipping through videos on youtube.


              • Sam    20 Oct 2016 @ 01:02   

                I’ve been trying that quite a bit, as well as skipping through MPC-HC, which was another problem program in my experience. I can’t seem to get it to trigger.


  6. DM    13 Oct 2016 @ 11:49   


    Two ASIO drivers show for the STX II, ASUS Xonar ASIO driver (64) and Essence STX II ASIO (64), win7 64 bit, 1.80b. I don’t notice any difference between both.

    – Are these ASIO drivers the same? If not, which one would you recommend for this card?
    – Are your recommended settings still applicable for this card under an “optimal” windows audio output scenario? (24 bit 10ms, 24bit 44/48khz)
    – Under headphone output, would you recommend 2 speaker output with Dolby Pro Logic IIx or 6/8 speaker with dolby headphone and 7.1 virtualization?
    – Would you recommend disabling the subwoofer and center speaker for accurate spatial positioning?

    I’d like to sincerely thank you and your team because I’ve used a DX for over 7 years exclusively with your drivers. Thanks again.


    • CarvedInside    14 Oct 2016 @ 00:17   

      1) “ASUS Xonar ASIO driver(64)” is the name from the UNi Xonar drivers. “Essence STX II ASIO (64)” is probably a leftover ASIO component registration from previous drivers, probably you’ve installed the original drivers first. Most likely both point to the same ASIO driver component. Did you install the UNi Xonar drivers with driver cleaner option enabled?
      2) I think so.
      3) I’m not a fan of 7.1 virtualization. Games can have a very good spatial positioning sound on 2.0 channels. If you are not happy with how a game handles the spatial positioning sound then you could try Dolby 7.1 virtualization. Dolby Pro Logic IIx feature is for S/PDIF stereo upmixing feature, this would not be good for spatial positioning.
      4) Don’t know.


      • DM    19 Oct 2016 @ 19:09   

        Thanks for the reply. I managed to remove the original ASIO driver through an OS format. Otherwise the driver cleaner wouldn’t remove it.

        Xonar DX connected to an amplifier had options to ouput analog 8 channels on a headphone. The STX II only has rear speakers and headphones, besides the usual FP. Clearly it’s intended as an audiophile card rather than a DTS and surround processing station, it’s just interesting to point that out.

        I’m not a fan of 7.1 virtualization either, however I’m quite sure that Dolby Pro Logic IIx is reproduced accurately using six channels with dolby headphone.

        From Dolbys website: “When combined with Dolby Pro Logic® II, Dolby Headphone can transform content from a two-channel (stereo) source into surround sound for a richer listening experience.”

        The sound is really good in that representation, I’d really recommend it. I asked a question on the virtualization because I wanted to know whether I could use 5.1 surround while using the rear speakers to output indpendently another source of audio, but it’s all good!

        In a true hifi setting, the audio is unsurpassed esp. upgraded with 3x Muses 02 opamps.

        Thanks Carved and all my best. Regards


  7. ujo    13 Oct 2016 @ 12:01   

    All of the sudden after some Windowes updates last month both recommended and latest version crash on my PC every restart (Win 7) and boot time takes forever now. E.g. I clean up driver remains as described here for detailed cleaning and reinstall, and then on the restart PC boots 5 – 15 minutes minutes and driver works, but after next restart the system icon for changing bitrate and latency is gone and I cannot bring it back, driver’s not working anymore. Is there a way to solve this so I don’t have to reinstall the driver whenever I need to change bitrate and latency for recording? Do you know which Windows update as of late makes driver crash?

    Card is D2


  8. Casodi    24 Oct 2016 @ 19:25   

    Hi. Could you tell me if these drivers would work fine if I had two xonar products connected like a D2 and a U3?


  9. Kurogane    26 Oct 2016 @ 04:44   

    Hi. I’ve a problem, i got pitch/click or whatever is call on my speakers when start a sound is very annoying



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