Here are some things and issues you should be aware concerning ASUS Xonar sound cards and other C-Media CMI8788 audio chipset cards:
- As of January 2017, the cards are no longer supported by the card manufacturer or audio chip manufacturer (C-Media). This means no new drivers with fixes from them.
- Essence ST, STX, STXII and possibly other Xonar cards and Windows 7/8/10: Some owners get random high pitch noises that is so loud it could damage the ears (#1).
- Essence STXII, STX, Xonar D2X cards and probably other Xonar cards may not be compatible with certain Ryzen motherboards. Certain systems with B350, X370, B450, X470, and probably A320, X399 and X570 chipset motherboards may crash when trying to install the drivers. More details and a list with compatibility reports here.
- Windows 10 compatibility might be an issue with future Windows 10 versions. At the moment the cards work fine for most, just a few experience system crashes or other issues. You can read more about Xonar and Windows 10 compatibility here.
- The advertised EAX emulation feature called GX does not work and will give you BSOD when enabled.
- There are some incompatibility issues with some motherboards. Most of these seem to be with ASUS motherboards. For example, some have an issue where the right channel volume gets muted regularly, requiring to restart the system or the Xonar sound card in order to fix it. Might be good to search the web for Xonar and your motherboard model keywords to see if someone reported an issue.
If you want still want to buy a ASUS Xonar card or another CMI8788 audio chipset card, you should buy it second hand and use it with UNi Xonar drivers. If you are looking for an alternative card I recommend you check Creative’s SoundBlasterX AE-5 audio card.
- ASUS Xonar DG, Xonar DGX, Xonar DG SI, Xonar DS, Xonar DSX, Xonar D1, Xonar D2, Xonar DX, Xonar D2X, Xonar HDAV, Xonar HDAV Slim, Xonar Essence ST, Xonar Essence STX, Xonar Essence STX II, Xonar Xense.
- Other C-media CMI8786 and CMI8788 audio chipset cards:
- Auzentech: HDA X-Purity 7.1, X-Meridian 1G, X-Meridian 2G.
- HTOmega: Claro, Claro Plus, Claro II, Claro Halo, eClaro.
- Razer Barracuda AC-1.
- TempoTec HIFIER Serenade