ASUS Xonar Essence ST


ASUS Xonar Essence ST
Ordering Information
Our Price$209.45
ConditionNew and Factory Sealed
Out of Stock as of 2:47am 3/29/2014

ASUS' Xonar Essence ST audio card with world's first precision audio clock tuning offers a revolutionary listening experience.

In its search for the purest essence of sound, ASUS have broken the boundaries with the soundcard on the market, the Xonar Essence ST. This PCI card is the world's first audio card to incorporate precision clock tuning to minimize audio jitter, bringing the user a clearer, crisper listening experience.

The Xonar Essence ST is capable of achieving an industry-leading 124dB SNR (Signal-to-Noise Ratio) in signal clarity and offers a built-in headphone amplifier to obtain the best performance out of any available pair of headphones. Thanks to ASUS' exclusive Hyper-grounding and EMI Shield design, even the most demanding audiophile will be satisfied with the unprecedented sound quality.

World's first precision tuning down to the picosecond for ultra-accurate audio details
Xonar Essence ST is the first soundcard in the world to focus on precise audio clock tuning. Using a technique that was once only seen on top-tier living room equipment, PC users can now experience 31% less audio jitter interference and enjoy ultimate sound quality that frees the audio signal from unsynchronized input streams and results in extensive music details and lively sound image for the ultimate listening experience. The improvement is most significant during general audio CD playback where the sample rate is 44.1kHz.

Industry-leading 124dB SNR for pure sound, pure music and pure listening pleasure
Utilizing only the finest components and design, ASUS has delivered a soundcard that is able to reproduce truly pure sounds at an industry-leading 124dB SNR (Signal-to-Noise Ratio). This is 64 times clearer the most onboard audio solutions (85-88 SNR). It also features the ASUS exclusive Hyper-grounding circuitry design that utilizes a PCB design to separate signal and noise - ensuring that only the cleanest signals are passed on to ultra-sensitive components for decoding.

Finest component selection to deliver crisp, clear audio
With a top-of-the-line PCM 1792A Digital-to-Analog Convertor (DAC) to convert audio signals at 127dB SNR, users will be able to enjoy minimum loss from the process of converting digital signals to analog sound. Additionally, Nichicon "Fine Gold" capacitors deliver rich bass and crystal-clear high frequencies, allowing the Xonar Essence ST to achieve an amazing frequency response and 124dB dynamic range. Furthermore, The Xonar Essence ST's EMI shield protects all analog outputs perfectly from any exterior electronic magnetic interference - resulting in the cleanest sound generation and delivery for the user's enjoyment.

High density sound performances with built-in headphone amplifier
Most quality headphones usually require additional driving power. Without it, the sound quality becomes bland. The Xonar Essence ST is equipped with a built-in headphone amplifier capable of driving every available headphone with up to 600ohms of impedance to their full extent and less than 0.001% of distortion - all without additional amplification. This ensures that only the highest density sounds can be heard from these headphones without the need to purchase an extra amplifier.

General Specifications

Manufacturer Part #XONAR ESSENCE ST
Manufacturer UPC #0610839042692
Cost Central Item #10988914
Product DescriptionASUS Xonar Essence ST - Sound card - 24-bit - 192 kHz - 124 dB SNR - stereo - PCI - ASUS AV100
Device TypeSound card
Enclosure TypeInternal
Interface TypePCI
Signal ProcessorASUS AV100
Sound Output ModeStereo
DAC Resolution24-bit
Sample Rate44.1 kHz (min) - 192 kHz (max)
Signal-To-Noise Ratio124 dB
System RequirementsMicrosoft Windows XP, Microsoft Windows XP Media Center Edition 2005, Microsoft Windows Vista

Extended Specifications

Device TypeSound card
Form FactorInternal
Interface TypePCI
Processor / Memory
Signal ProcessorASUS AV100
Audio Output
Sound Output ModeStereo
DAC Resolution24-bit
Sample Rate44.1 kHz (min) - 192 kHz (max)
Signal-To-Noise Ratio124 dB
Frequency Response10 - 90000 Hz
Compliant StandardsDirectSound, Dolby Digital 5.1, A3D 1.0, OpenAL, Dolby Digital Live, Dolby Virtual Speaker, Dolby Headphone, DirectSound3D GX 2.5, Dolby Pro Logic II
Audio ModesPlayback : 24-bit 192 kHz - 124 dB
Record : 24-bit 192 kHz - 118 dB
Expansion / Connectivity
Interfaces1 x audio line-out - RCA x 2
1 x headphones - phone stereo 6.3 mm
1 x audio line-in/microphone
1 x audio line-in - 4 pin MPC
1 x SPDIF output - RCA
Cables Included1 x audio (optical) adapter
Software / System Requirements
OS RequiredMicrosoft Windows XP, Microsoft Windows XP Media Center Edition 2005, Microsoft Windows Vista

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