---
product_id: 50162117
title: "Asus Xonar Essence STX II Sound Card"
brand: "asus"
price: "₩21114"
currency: KRW
in_stock: true
reviews_count: 4
url: https://www.desertcart.kr/products/50162117-asus-xonar-essence-stx-ii-sound-card
store_origin: KR
region: South Korea
---

# WIMA capacitors - ultra-stable, clean power delivery Supports 600Ω headphones - audiophile-grade power 124dB SNR - pristine audio clarity Asus Xonar Essence STX II Sound Card

**Brand:** asus
**Price:** ₩21114
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—because your ears deserve the best.

## Quick Answers

- **What is this?** Asus Xonar Essence STX II Sound Card by asus
- **How much does it cost?** ₩21114 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/50162117-asus-xonar-essence-stx-ii-sound-card)

## Best For

- asus enthusiasts

## Why This Product

- Trusted asus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** Designed for X86 platforms with DDR3 SDRAM compatibility, ensuring smooth installation and reliable performance in your setup.
- • **Premium WIMA Capacitors:** Equipped with high-quality WIMA capacitors for cleaner, more stable power, minimizing distortion and enhancing sound fidelity.
- • **Audiophile-Grade Clarity:** Experience crystal-clear sound with an industry-leading 124dB signal-to-noise ratio, ensuring every note is pure and immersive.
- • **Powerful Headphone Support:** Drive high-impedance headphones up to 600Ω effortlessly, perfect for professional-grade in-ear monitors and studio headphones.
- • **Precision Timing with TCXO:** Built-in TCXO clock source reduces jitter for ultra-accurate audio playback, delivering flawless timing and detail.

## Overview

The Asus Xonar Essence STX II is a high-performance internal sound card engineered for audiophiles and professionals. Featuring a 124dB signal-to-noise ratio, support for headphones up to 600Ω impedance, and premium WIMA capacitors, it delivers pristine, distortion-free audio. Its TCXO clock source ensures precise timing, making it ideal for critical listening and studio environments.

## Description

Product Description               Asus Xonar Essence STX II Sound Card                  Box Contains               1 x Asus Essence STX II

## Features

- accompanied by WIMA capacitors for cleaner and more stable power
- Essence STX II adds TCXO clock source
- Supports up to 600ohm‐headphone impedance with a dedicated gain for in‐ear monitors
- Output Signal-to-Noise Ratio (A-Weighted) (Front-out) : 124 decibel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ASUS |
| Batteries | 1 A batteries required. |
| Item model number | Essence STX II |
| Manufacturer | ASUS |
| Series | Essence STX II |
| Processor Count | 1 |
| Computer Memory Type | DDR3 SDRAM |
| Hardware Platform | X86 |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 British Thermal Units (BTUs) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 0.5 Milligrams |
| Number Of Lithium Ion Cells | 7 |
| Number of Lithium Metal Cells | 7 |
| Item Weight | 708 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Compatible devices:** Personal Computer
- **Brand:** ASUS
- **Hardware interface:** PCIE x 1
- **Audio output mode:** Surround
- **Platform:** Not Machine Specific

## Images

![Asus Xonar Essence STX II Sound Card - Image 1](https://m.media-amazon.com/images/I/61ztwr6aMUL.jpg)
![Asus Xonar Essence STX II Sound Card - Image 2](https://m.media-amazon.com/images/I/612sn+z99qL.jpg)
![Asus Xonar Essence STX II Sound Card - Image 3](https://m.media-amazon.com/images/I/61j9usQqP+L.jpg)
![Asus Xonar Essence STX II Sound Card - Image 4](https://m.media-amazon.com/images/I/617w28uXXLL.jpg)
![Asus Xonar Essence STX II Sound Card - Image 5](https://m.media-amazon.com/images/I/61OyUneEi+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superb High-End sound but with cheapo Drivers
*by R***D on 8 February 2016*

Unlike some reviewers I had no issues installing the card. It went in, drivers loaded and away it went.Originally installed under Windows 7 (64 bit) It also works fine now I've migrated to Windows 10.I was using the Asus Xonar DX previously, and that is a great budget card offering superb sound quality at a ridiculously low price. However, this is a no-compromise audiophile card aimed particularly at headphone users I think. I use BeyerDynamic DT770 Pro 250ohm version headphones so the top end headphone amp was a real plus for me, and as far as that is concerned it does exactly what it says on the tin, easily driving my Beyers to realistic levels with punch, attack and clarity on jazz and soul/funk style music.The whole package (apart from drivers) is top end. Nicely packaged and obviously a well made item.Sound quality is instantly improved over the already pretty impressive Xonar DX with adjustable gain for high impedance headphones. There are 3 settings, Up to 64 ohm, 64-300 ohm and 300-600 ohm impedance. (Just be sure to reduce volume before increasing the gain settings as it will blow your ears!)If there is any similarity between this and the Xonar DX its the driver interface. Very poor and clunky. If the guys at Asus could rewrite the GUI they'd have a real winner.I've found no reason to play around with the alternative op-amps that ship with the card. I find the sound exactly to my taste as shipped and if it ain't broke....However, I'm sure the lure of tinkering will prove too strong eventually, but I'd need somebody to try it first and see what difference they make.So from me its a solid 5 stars for sound (and build) quality but a poor 2 stars for the user interface. Come on Asus, you are letting down a premium product with inferior outdated software.

### ⭐⭐⭐⭐⭐ Blows away Creative Z series
*by D***S on 8 June 2015*

A worthwhile investment if you're serious about sound quality and want your PC to be a high quality playback device. I made the mistake of going with the Z series to replace my aging X-Fi, which had always had a nice clear, bright sound. Big mistake, Creative dropped it and their newer series, the sound is overly bloated and processed. This put a smile on my face from the start! Sound is huge - crisp and smooth, clean and detailed. There's a huge amount of texture/depth coming through and closer to proper audio equipment (amp) than any PC card i've heard.Set-up was easy, small driver package took 2 seconds to install and get working. Design complaint would be card is not well supported in single PCI-E slot and sags under it's own weight, especially w/ power cable. Think I'm going to have to get some good headphones now. All in all I think you need to get this card!

### ⭐⭐⭐⭐ Great once its working
*by W***L on 30 September 2015*

Absolutely stunning bit of kit. I bought it when my gaming headphones with their fancy in-line USB sound card packed in. I have been moving away from gaming and more towards listening to my music these days, so I thought I’d go for something a little more Hi-Fi. I also picked up some Beyerdynamic Custom One Pro headphones. (I still wanted occasional over-blown bass for occasional gaming. But bass you can then turn off.)I did have to fight to get it working though with Windows 10 Home x64 on a Z77 system. At first, even though it was powered up with the Molex power connection, the Asus driver installation software insisted no such device was installed and quit the installation procedure. Also it was showing up in device manager ONLY as an error on a PCIE bridge. Much swapping around of PCIE slots and testing voltages ensued. And some swearing.It only worked after I disabled my on-board sound in BIOS, and ditched the Asus drivers in favour of UNi Xonar STX II 11.5 v1.75b r2. Not sure if this was a Windows 10 issue and/or only beta drivers available from Asus at the time of writing this. Hope this helps others in my situation, but I could see how to some it would seem like it was a dead product and return it.With everything up and running, and having always used on-board sound and gaming headphones before now, I was stunned. I’m no audiophile and lack the lingo to describe this in any technical way, but the detail and clarity I was now hearing in my music was night-and-day different in every way from what I was used to. Never really appreciated all the quality in the mid-range I was missing before now either. There is also absolutely ZERO hiss when no sound is playing.The software UI looks a little dated, but it works well and is easy to figure out. After going through a few albums with a big grin on my face, I fired up a game with one of the best sound designs I can think of. Battlefield Bad Company 2. I turned on the Dolby 5.1 and jumped into a few rounds, and I was equally impressed. Only a couple of times I got a sense of the sound’s direction ‘jumping’ from one virtual channel to another, but forgivable considering how everything sounded.There is only one major downside. Now any other hardware I listen to music on sounds like ass. Things are about to get very expensive!I have to knock a star off for it being released with only official drivers in a beta state, plus needing a BIOS-tinkering level of knowledge PLUS unofficial drivers to get it running. And a Molex connector. Molex? Really?

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*