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UNi Xonar Drivers 1.72 (post periodically updated)

POST updates changelog (new or updated stuff in the post will usually be marked in red):

  • 06.01.2014 : UNi Xonar v1.72 and v1.64 rev.2 drivers are released.
  • 10.09.2013 : Good news everyone! If you ever wanted to save Xonar settings as switchable profiles, or access to most of the settings while staying away from the Asus Xonar Audio center, or just wanted something better than the Standalone Apps then you should head on to XonarSwitch Beta page (by Giulio).
  • 29.04.2013 : Added to the standalone apps pack  the Headphone AMP switch .
  • See more post updates

UNi Xonar drivers are modded drivers for the following cards:

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

  • Other C-Media 8788 audio chip based cards: Auzentech X-Meridian & X-Meridian 2G; HT Omega Claro Plus, 2, Halo, eClaro; Razer Barracuda AC-1. (more…)


UNi Xonar Features

FAQ & troubleshooting guide (updated 19.07.2014)

Useful tips & suggestions | Known issues & workarounds (updated 27.02.2013)

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 UNi Xonar 1818+ 1.7x

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.


Note about Windows 8.1 RTM compatibility

While drivers up to 1.71 work with Windows 8.1 , they are not fully compatible. C-media Panel is missing some options and its interface is a little bit different (it’s displaying its Win XP interface). I suggest you try XonarSwitch for changing the needed settings.

There might be some problems with WASAPI playback.

Highlights from previous driver releases

Read Previous Release Notes

Driver Downloads:

  1. UNi Xonar 1816/1822 v1.72    mirror     (latest)
  2. UNi Xonar 1816/1821 v1.71    mirror
  3. UNi Xonar 1814/1818 v1.70   mirror   
  4. UNi Xonar 1814/1815 v1.64 r2   mirror    (proven stable)
  5. Older versions : v1.63 beta; v1.62 betav1.54 ; v1.61 ; v1.53

Official addons (how to):

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

Standalone apps for applying settings: 

Standalone apps pack  (mirror) containing :

    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* mirror (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

Other apps:

    1. Front Panel switch new version*  mirror (by Virus; notes)
    2. ASIO settings viewer/changer (ext link)
    3. Audio re-starter for sound loop problem for Win Vista/7/8 (by Razord93 ; ext link)


  1. Daniel    14 Oct 2014 @ 19:55   

    Will you ever make these unified drivers compatible with Asus ROG phoebus solo? Current Asus drivers for Phoebus are not great. Hope one day you can make these drivers compatible.


  2. gamingexpert13    15 Oct 2014 @ 02:47   

    Thanks for these drivers. I especially like XonarSwitch.
    A few things that I wish they had (that my onboard Realtek drivers had) are:

    –Option to swap Left & Right channels
    (My right speaker has volume/power/bass/treble controls and a headphone plug that I want near me on the left side of the room. Swapping the output lets me swap the speaker positions, which is how I had it with the onboard Realtek audio/drivers.)

    –Option to output to Front & Back outputs at the same time
    (I also used to do this with the Realtek drivers for my onboard sound so I know it’s possible. There’s many reasons this is useful. (1) I have 2 sets of speakers that I want to output to at the same time, one set has good sound, and the other has special light effects I want running but poor sound quality. (2) Another usage is to simply use 2 sets of speakers to have fake surround sound. (3) Another usage is to have speakers and headphones running at the same time, or 2 sets of headphones [independent volume control would be nice too]. (4) Another usage, which actually might be an additional feature since it’s more complicated, is to output 2 different audio streams to the 2 different outputs at the same time. For example if I wanted to output a movie to one room/output, and music to another room/output or headphones.)

    –Option to boost output volume past 100%
    (I was looking for this option when playing video files with very low sound in my media center program on my tv, which cannot boost audio past 100% like vlc. I’m outputting across the room to a soundboard and amp, so I have it boosted there as well, but it also boosts the noise picked up in the signal, so boosting it before it leaves my computer gives me more clean sound data compared to the noise. I don’t want to enable SVN because automatic volume control typically has constant annoying volume changes instead of just setting a louder volume that I want. I also finally just noticed that in the standalone apps pack there’s HpAMP/HP AMP switcher, which looks like it can boost by +12 or +18, but it says it’s for headphones…maybe I’ll just try it for speakers, if that will work the same way.)

    Thanks for all the work so far! It’s really helpful.


    • CarvedInside    19 Oct 2014 @ 13:48   

      Just for clarification, XonarSwitch and UniXonar are 2 separate things. XonarSwitch is done by Giulio and it has its own page.
      1) You can exchange L & R if you switch the output from Rear 2 Speakers to Rear Headphones and press Set button near the Analog output combobox in XonarSwitch. Such an option is not available when your output is set as “Rear 2 Speakers”. The different between Rear 2 Speakers and Rear Headphones option is you have different addition options for each. So if you don’t use Dolby Virtual Speaker option and you have only 2 speakers you can use the output as Rear Headphones. This is how the original Asus/C-media drivers are and there is nothing I can do on that front.
      2) Xonar cards can’t have Front Panel and Rear(or Back) panel working at the same time.
      3) In XonarSwitch if you go to Realtime Settings->Mixer->Playback pane you have sliders that let you increase the volume. I don’t think t this is a better way to increase the volume rather than through speaker volume. Don’t use HPAMP switcher for speakers. The +12 or +18 option is for changing Ohm for Headphones that support different Ohm.


  3. PS    15 Oct 2014 @ 09:24   

    Using drivers on Win10x64 on Xonar DX.

    Adjusting volume results in the left side going mute before the right. At 0% volume I can hear the right side at roughly 10% with the left side mute.


    • PS    16 Oct 2014 @ 01:27   

      Little more. Listening to music, it seems It is not in mono as I seem to hear different sounds from the left and right side.

      Yet in balance options of speaker properties, adjusting the left slider results in adjusting volume like normally, adjusting right side does nothing, and setting both to zero results in the same 10% coming out of left side.


  4. Apostolis    15 Oct 2014 @ 12:14   

    Has anyone tried Uni Xonar with the Win10 ?
    Theoretically they should work, but you never know….


  5. recep    16 Oct 2014 @ 20:46   

    WOW! I am so regretful being so late to install these drivers as an audiophile! SO much better than stock drivers.
    I chose Cmedia Panel installation.I wasnt expecting this much sound improvement! Thank you guys for making this very good drivers!


  6. Larry    17 Oct 2014 @ 11:23   

    yes… stock drivers are s*** plus Asus is ALWAYS late to release stable/new drivers… expect to release Windows 10 drivers at least 6 months after release


  7. David    18 Oct 2014 @ 12:49   

    When are we going to get support for the STXII?


  8. TomP    19 Oct 2014 @ 10:28   

    Many thanks for this web site – very appropriate as I’m just about to buy a half-height Xonar card for my new HTPC !! Can I ask….

    1. How to load the drivers and avoid loading the Asus ones? Do I do it before installing the hardware?
    2. Thinking of buying an HDAV Slim because it has a SPDIF coax output, although are there any other Xonar’s with this kind of output?
    3. What applications should I use that best use these drivers?

    Thanks in advance…TomP


    • CarvedInside    19 Oct 2014 @ 14:46   

      1) You install the UNi Xonar drivers only after you’ve installed the card. For HDAV cards you need to enable Windows Test Mode before installing the drivers in order for UNi Xonar drivers to install
      2) Xonar HDAV Slim would be the only Xonar card with S/PDIF coaxial output that is slim. If you can use the analog jacks or S/PDIF Toslink then a better buy in my opinion would be a Xonar DX. You can search for cards by features and connections here: http://event.asus.com/multimedia/xonar/find.htm
      3) I’m not sure I understand. There are no applications (as in audio/video players) that work better with these drivers.


      • TomP    19 Oct 2014 @ 17:15   

        Many thanks, but a few more comments / questions (same numbers) if you do not mind.

        1. Never heard of the Test mode, so thanks for the hint
        2. The Xonar DX that I can find does not have a digital output at all, so which model(s) are you suggesting – DG? DGX? D1? STX? DSX?
        2. I need the coax output because my recorder already has the toslink port used.
        3. I see the ArcSoft app that came with the cards is now obsolete, so are there any other Bluray player apps and/or recording apps that might be suitable

        Supplementary – ASUS refer to HDAV software, but I cannot find where it is maintained / updated. Any advice?


  9. Roman    20 Oct 2014 @ 16:23   

    Carve i guess the driver will be out tomorrow… THANK YOU!!! i’ll try it on windows 10 as well.


  10. Red5goahead    21 Oct 2014 @ 12:12   

    A question about FlexBass on Xonar DX I bought a new sub , an Indiana LIne Basso 850 and I’m try to resume this feature to optimize the system

    I’m using Xonarswitch to build profiles for different purpose.

    My question about FlexBass is: with settings below for HT


    I activate the Flexbass with a 120 HZ crossover frequency and large option for front and center,surround small instead

    My target is that the Flexbass work as LFE+MAIN or LFE/Both option in the modern Avr so with front and center (large) there is no cut but the frequencies below the cross-over limit, on these channel, are merged into the original LFE channel. For the surround (little) I’ve less doubts so that channel should be cutted over cross-over limit and merged down into LFE. Am I right?



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