ASUS XONAR Essence STX 5.1-Channel PCI Sound Card

Product code: 098102

  • Available for Home Delivery
  • Available to Order Online & Collect in Store from next day  

Product features

  • Built-in headphone amplifier
  • High-fidelity low-dropout (LDO) regulator
  • Signal-to-noise ratio: 124 dB
  • Includes Op-amp swap kit
Product information
Please your inner audiophile with the Asus XONAR Essence STX 5.1-Channel PCI Sound Card. With high quality audio response and ample connectivity, it's ideal whether you're listening to music or gaming.

High quality sound

The XONAR Essence STX uses precision made components to provide you with only the best sound. The impressive 124 dB signal-to-noise ratio means that you'll be able to enjoy high quality audio on your PC.The multi-layer PCB separates signal from noise for a clean signal, meaning you can enjoy fantastic 5.1 sound.

It includes a built-in headphone amp and a high quality headphone driver, offering up to 600 Ohms of impedance. With less than 0.001% distortion, you'll be able to hear every detail in your games or listen to music the way it should be heard when you're using your headphones or headset.

Built for power

The Nichicon 'Fine Gold' capacitors offer great dynamic performance, combining fantastic components and ample connectivity for excellent sound quality.

You can also customise your sound using the swappable OPAmp socket. This lets you alter your listening experience without hassle, so you can find the perfect sound to suit your games or home entertainment.

For booming 5.1 sound that will blow you away, all you need is the Asus XONAR Essence STX 5.1-Channel PCI Sound Card.

Technical specifications for ASUS XONAR Essence STX 5.1-Channel PCI Sound Card

Enclosure Internal
Interface PCI
Channels 5.1
DAC resolution 24-bit
Signal processor ASUS AV100 High-Definition Sound Processor
Frequency response 10 - 90000 Hz
Signal-to-noise ratio 124 dB
Encoding - Dolby Digital Live
- Dolby Headphone
- Dolby Virtual Speaker
- Dolby Pro-Logic II
Inputs - S/PDIF
- RCA x 2
- 6.3 mm jack
- Aux-in x 1
Outputs - 3.5 mm jack
System requirements Windows 8, 7, XP
Accessories included - S/PDIF adapter x 1
- 3.5 mm to RCA cable x 1
- Quick start guide x 1
Dimensions 112 x 2 x 169 mm (H x W x D)
Weight 920 g
Manufacturer’s guarantee 2 years
Customer reviews

ASUS Xonar DG 5.1-Channel PCI Sound Card reviews verified by Reevoo

59 reviews

Reviews from: Sort by:
(8.2 out of 10)
Sound quality
Value for money
Overall rating
Scores 8.2 out of 10 based on 59 reviews
Show more score details
(10 out of 10)


Poole GB Serious Technology Enthusiast
I absolutely love this card and the sound it produces when paired with my Sennheiser's. It is far beyond anything else I've ever owned, including my expensive hi-fi setup. The range of customisability and software functionality allows a very high level of control over card. I also noticed a huge difference in perception of positional surround sound in games such as Battlefield. I would recommend this to anybody looking to take the listening experience on their computer to a new level of enjoyment.
Confirmed purchase: 07 January 2015
Published on: 15 March 2015
(9 out of 10)


Burnham-on-Sea GB
Good sound quality, reduces hissing.
Confirmed purchase: 28 January 2015
Published on: 09 March 2015
(9 out of 10)


london GB
Instantly noticed the difference in sound quality in both my headphones and speaker systems
Not really a bad point but visually the card could look better but that's not it's purpose
Confirmed purchase: 15 January 2015
Published on: 06 March 2015
(8 out of 10)


Northampton GB
Sound is incredible for the money. The built-in amp makes it perfect hard-to-drive headphones.
Drivers can be a bit troublesome, but the third-party 'Uni Xonar' drivers work great and solve some problems that Asus haven't bothered sorting out.
1 of 1 people found this review helpful
Confirmed purchase: 25 December 2014
Published on: 25 February 2015
Delivery, Order & Collect and Services

Online delivery

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Same day delivery (£9.99): exclusively for selected addresses in Greater London. Simply place your order before 9:30am Monday-Friday and receive it that evening between 6:30pm and 10:30pm.

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  • Available for Home Delivery
  • Available to Order Online & Collect in Store from next day  
ASUS XONAR Essence STX 5.1-Channel PCI Sound Card