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Item#: N82E16829132006

ASUS Xonar DX 7.1 Channels 24-bit 192KHz PCI Express x1 Interface Sound Card

In stock.

  • PCI Express x1 Low Profile, 7.1 Channels
  • Powered by complete Dolby Home Theater technologies
  • VocalFX voice processing technologies
  • Delivers ~35 times cleaner audio quality
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The ASUS Xonar DX is a PCI-E sound card with a 116 dB Signal-to-Noise Ratio (SNR), which provides audio that is 35 times cleaner than onboard audio. With the support of Dolby technologies and GX2.5, the Xonar DX provides rich audio effects in games and theater quality audio in movies.

Dolby is globally recognized for their innovations in audio for cinemas, home theaters, PCs, and games. With Dolby technologies, your PC is upgraded to surround sound and transformed into an immersive digital entertainment center. These include Dolby Digital Live (Real-time 5.1 Dolby Digital surround sound encoding), Dolby Pro-Logic IIx (Converts stereo or 5.1 sounds to a seamless 7.1 surround sound field), Dolby Headphone (Delivers a realistic and spacious 2-to-5.1 surround or 3D positional sound field over any set of stereo headphones), and Dolby Virtual Speaker which simulates a highly realistic 5.1 speaker surround sound listening environment from as few as 2 speakers.

ASUS designed GX2.5 to simulate EAX game effects and makes them available on Windows Vista/7 PCs. GX2.5 will automatically emulate the latest EAX technologies without additional software.

  • newegg High Signal-to-Noise Ratio (SNR) A high SNR rating means less unwanted noise. Therefore the audio is cleaner which translates to better sound quality. The Xonar DX achieves a 116 dB SNR rating for clear audio in games, movies, and music.
  • newegg Dolby Technologies A rich Dolby feature set is supported in order to enhance PC audio with surround sound. A surround sound experience can be achieved with as little as two speakers or even headphones.
  • newegg GX2.5 GX2.5 automatically emulates the latest EAX technology – up to EAX5.0, to offer advanced environmental audio effects. While enhancing the feeling of actually being in the game, GX2.5 also improves on directional audio information.
  • newegg Low Profile The Xonar DX is bundled with a low profile bracket for compatibility with HTPC cases.
  • newegg VocalFX VocalFX is an innovative voice processing technology to let your voice get into the realistic game landscape (VoiceEX) or to emulate the background scenes in online chat (ChatEX). It also allows you to change your voice pitch to disguise who you are (Magic Voice).

Learn more about the ASUS Xonar DX


Xonar DX

Audio core

Audio Chipset
Sample Rate
Digital Audio


Line In
1 x 3.5 mm jack (1/8") (shared with Mic-in)
Line Out
4 x 3.5 mm jack (1/8") (Front out/Side out/Center-Subwoofer out/Rear out)
1 x S/PDIF out (1 x Optical (Toslink)/(combo with analog in))
1 x 3.5 mm jack (1/8") (shared with Line-in)
CD/Aux In
1 x 4-pin header
Other Ports
1 x Front-Panel Header


PCI Express x1
Operating Systems Supported
Microsoft Windows Vista(32/64bit)/XP(32/64bit)/MCE2005
System Requirements
One PCI Express 1.0 (or higher) compatible slot for the audio card
One available 4-pin power cable from PC's power supply unit
Intel Pentium4 1.4GHz or AMD Athlon 1400 CPU or faster CPU
>256 MB DRAM system memory
>60 MB available HDD space for driver installation package
CD-ROM drive (or DVD-ROM drive) for software installation
High-quality headphones, powered analog speakers, or a Dolby Digital or DTS decoder, to enjoy the ultra-high fidelity sounds of the card


Powered by complete Dolby Home Theater technologies

Supports latest DS3D GX 2.0 for gaming on Vista & XP

VocalFX voice processing technologies to make gaming and online chat more lively and attractive

Delivers ~35 times cleaner audio quality (116dB SNR) than most motherboard audio (85dB SNR)


Package Contents
XonarTM DX 7.1 Channel PCI Express Audio Card
Driver CD (including Portable Music ProcessorTM Lite and RMAA V6.0.6 utilities)
S/PDIF TOSLINK optical adaptors
Quick Start Guide

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): Lifetime

Customer Reviews of the ASUS Xonar DX

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  • N/A
  • 3/26/2014 1:56:33 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsBeautiful sound

Pros: Beautiful sound quality. No-hassle PCI passthrough to a Xenserver guest!

Cons: Annoying power connector. Be very careful with it. I still haven't figured out how to disconnect it without applying force, so the power adaptor is installed permanently as far as I'm concerned.

Other Thoughts: My use case is undoubtedly not typical. This card is mounted on an Asus P9D-C/4L running Xenserver, and is dedicated to an Ubuntu virtual machine using PCI passthrough. It works perfectly and sounds fabulous.

Did you find this review helpful? Yes No

  • N/A
  • 3/15/2014 8:16:13 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs

Pros: Plenty of ports including internal connectors for the front panel.

Cons: The drivers it came with wouldn't install so I had to find other ones on a website. The card didn't recognize the internal ports so I had to get an extension cord to use for the back ports. After a few months of usage, it died and I am about to return this.

Other Thoughts: I would not recommend purchasing this unless you really need the nice 7.1 audio set up it provides. Otherwise, it isn't worth the price if you are only using it with headphones.

Did you find this review helpful? Yes No

  • Blizz
  • 3/12/2014 2:41:55 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSound Works

Pros: After attempting an XFI and Recon card install for weeks of frustration and no help with tech support I decided to install this Asus. Standard card install and Win 7 detected it immediately. Card sounds great for audio output which supports both 5.1 & 7.1. Great to have my music & gaming surround back!

Cons: This card requires power. Not an issue as long as you have the extra wire. An adapter four pin plug is provided.

Did you find this review helpful? Yes No

  • Fred
  • 3/8/2014 5:50:35 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsLosing eggs!

Pros: Nice card. But if you have a problem.....

Cons: Customer Service. I have had this card for over a year & it has worked well in that time. I had a recent build & I decided to put another card in my computer that had the DX card & move the DX card to the new build. The new build had been working fine for about 6 months when I moved the card to it. After the installation when I tuned the computer on it popped real loud & shut down. It would not restart for a couple of hours & when I finally got it to turn on it repeated the same sequence.
So I re-installed it in the other computer that it had been working in & now it popped real loud & shut that computer down. So I RMA'd the card & the replacement does the same thing. So I RMA'd that card & now am having the same problem. During all this time I also was installing the new card(different brand) in both computers & it was working fine. So with the last card when I tried it in the first build it killed the motherboard. I talked to ASUS & they said they would be more than happy to RMA the card. I'm not sure what is the fair thing to do here because I would never cosider putting one of their audio in on of my builds again. By the way I have a new Sound Blaster Zx on the way.

Other Thoughts: See cons

Did you find this review helpful? Yes No

  • N/A
  • 2/17/2014 5:20:14 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsUsing to drive Two Crown XLS1000 amps (bi-amp line arrays) and sub

Pros: Great Sound Quality, 8 channels unlike some other 2 or 4 channel sound-quality oriented cards.

Can finally bi-amp stereo mains, while running center/sub/surrounds

Good analog voltage out - drives Crown XLS 1000 amplifier via RCA input much better than onboard audio

Cons: Terrible drivers, and required firmware update was difficult to find.

Keep in mind Windows Vista/7 handle audio differently than XP, and what you select in Xonar audio center isn't always intuitive (ie stereo upmix requires "2 Channels" under Audio Channels, Sample rate must be manually selected to 44.1 khz, and Analog Out set to 5.1 Speakers for my setup)

Other Thoughts: I don't know why it's so hard to get good quality multi-channel analog output from a PC. Separate, mono power amplifiers have long been a better option than home theater "receivers," and the Crown XLS Drivecore series of power amps opens a whole new world with their built-in crossovers.

That still left me trying to find 5 channel high-quality analog output. I settled with the Xonar DX, and was immediately plagued with random channel-swapping (test the front left speaker 8 times and it would play from a different speaker each time) and a terrible POP every time the PC sleeps or shuts down.

Downloaded Xonar unified drivers, didn't fix anything. Discovered a firmware update under the Window's XP tab of Asus' website... BINGO! Now the channels stay where they're supposed to. The POP is still annoying - power amps MUST be off before shutting down the PC else it startles us. Where it not for the crossovers built-into the amps, I would have fried 16 Dayton Planar Tweeters ($800).

1 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 1/29/2014 11:21:12 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks well as expected

Pros: -The sound is a lot clearer and richer than my onboard Realtek ALC 892.
-I can re-use this card in near future new computer builds since no known onboard audio is as good (though ALC 1150 comes close).

Cons: None so far

Other Thoughts: Had to download the driver from ASUS. The driver comes in .rar file, which needs 7 zip (free) to open. Not really an issue for me, but just an FYI for those unfamilliar rars.

0 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 1/23/2014 5:23:54 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNo Problems

Pros: Well I've had no problems, however I haven't used a lot of the features or things it can do. For instance I haven't used it for mic input. I bought it specifically for my Astro A40 headset and it works well for that.

Cons: None.

Other Thoughts: Haven't used the mic input - be wary if you plan to and have GPU SLI setup. Apparently some sound cards can pickup interference from GPUs when under heavy load. This is hard or easy to fix based on specific things. So just do some research before hand.

1 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 1/21/2014 8:13:16 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsOnly buy if you don't use optical for your headset

Pros: Significant sound upgrade from stock

Cons: You can't use a mic and an optical plug because they share the same port.

4 out of 5 people found this review helpful. Did you? Yes No

  • Ty
  • 1/5/2014 7:18:02 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsProblem with Card

Pros: A little more of... nothing.

Cons: When plugged in and drivers installed, the sound at 192 Khz is heavily distorted, as another reviewer had said. Meaning that I am having the same problem but this one is new out of the box. When my 7.1 Dolby Digital headphones are plugged into the motherboard, it works fine without any tweaking of settings. Yet when plugged into the sound card the Sound OUT (green plug) only works for the right headphone and not both as it is supposed to do.

0 out of 3 people found this review helpful. Did you? Yes No

  • InternetGuy
  • 1/3/2014 8:35:45 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsAwesome!

Pros: Sound quality is fantastic
Customized settings
Dolby headphone amp

Cons: Non

Other Thoughts: I have owned this card for over a year now and I must say it sounds great. The dolby headphone amp sounds great and it is very clear and crisp. I had an audigy 2 ZS prior and while i feel the bass pounded harder the satellites now sound far more clear and less muddy.

I would not hesitate to purchase this again.

1 out of 1 people found this review helpful. Did you? Yes No

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