Zadnje ogledano

Asus Xonar Essence STU


Nov izdelek

Asus Xonar Essence STU je vrhunski USB DA Konverter (DAC) in ojačevalnik za slušalke (600Ohm) z asinhronskim USB avdio. Vrhunska izdelava, izjemna kvaliteta najmanjšega brata v seriji Asus Hi-Fi zunanjih enot.

Več podatkov

Izdelek na zalogi. Rok dobave 1-3 delovni dnevi.

224,25 € z DDV


299,00 € z DDV

Na seznam želja

Več podatkov





  Expérience Audio - 5 étoiles     Обзор внешнего ЦАП с усилителем для наушников ASUS Xonar Essence STU-5     






USB DA Konverter (DAC) in ojačevalnik za slušalke (600Ohm) z asinhronskim USB avdio.

Excellent audio quality as inherited from acclaimed Xonar Essence ST/STX

Precision clock tuning technology and asynchronous USB transfer ensure jitter-free fidelity

Integrated 600ohm headphone amplifier optimizes sound detail with two gain settings

120dB Signal-to-noise ratio (SNR) delivers high definition audio clarity

Dedicated jumper switch allows direct audio delivery to your power amplifier, by-passing DAC volume controls. Three swappable Op-Amps enable tonal character tuning based on personal taste


The Essence of Sound

Following considerable positive feedback from customers on the excellent sound quality of Xonar Essence ST/STX sound cards, we developed the Xonar Essence STU USB external digital-to-analog converter and headphone amplifier. Based on the acclaimed design of Xonar Essence ST/STX and going beyond their already high standards, it offers even more premium audio quality plus easy controls and connectivity for discerning music lovers who needs a good DAC and headphone amplifier to drive the full capabilities of their high-end headphones.

Product overview

High quality precision audio

Xonar Essence STU delivers clean, clear, and low distortion sound with 120dB signal-to-noise ratio (SNR) thanks to exacting hardware design and top-notch component selection.

Precision clock tuning technology

Xonar Essence STU embeds a precise clock tuning IC that kills jitter prior to signal processing, ensuring the highest fidelity with extensive detail and lively sound imaging.

Digital-to-analog converter (DAC)

High fidelity Texas Instruments PCM1792A DAC delivers accurate digital-to-analog conversion, sensational audio clarity, and low distortion.

Audiophile-approved capacitors

WIMA FKP2 and Nichicon Finegold capacitors deliver balanced and rich sound.

Asynchronous audio transfer

Asynchronous USB transfer mode separates unstable and noisy clocks generated by the computer or its USB interface logic, maintaining sync with master clock circuitry on Xonar Essence STU.

Balanced (or mirrored) PCB layout

Symmetrical analog output path ensures balanced and truthful representation of all sound sources and minimal crosstalk.

Integrated 600ohm headphone amplifier optimizes sound detail with two gain settings


Headphone amplifier

Renowned TPA6120A2 headphone amplifier supports up to 600ohm impedance, driving all headphones available in the market. It empowers your favorite set with dynamic and detailed sound. 

Headphone gain switch

Xonar Essence STU offers readily accessible switching between low and high gain settings, accommodating better listening experiences across a wide range of headphones, from in-ear headsets (typically 16ohm-32ohm) to premium full-size headphones ( up to 600ohm). This is especially useful with the increasing popularity of mobile devices, which normally ship with low impedance/high sensitivity headsets.

Convenient tonal tuning

Xonar Essence STU has room for three swappable Op-Amps (operational amplifiers), which you can replace to adjust tonal performance based on personal taste. This open-ended and customizable design is inherited from previous Xonar Essence audio products, and remains true to the series’ commitment to accommodating as many audiophile preferences as possible. 

Texas Instruments NS-LME49720 and NS-LM4562NA Op-Amps deliver acoustics fine-tuned by audio engineers to support livelier, more detailed, and more spacious sound.

Advanced controls

By-passing volume jumper switch

The included jumper switch re-routes sound and allows Xonar Essence STU to be used as a pre-amplifier in conjunction with a dedicated power amplifier. You can opt to adjust master volume directly on the power amplifier without having to reach Xonar Essence STU controls.

Selectable DC servo headphone output

Many music enthusiasts choose to solder a DC servo on their DAC to minimize power-up pop noise on the renowned TPA6120A2 headphone amplifier. The dedicated DC servo on Xonar Essence STU offers a convenient and solder-free alternative.

Product overview



Audio Interface

USB 2.0 high-speed

Audio Performance

Output Signal-to-Noise Ratio (A-Weighted) (Front-out) :
120 dB
Output THD+N at 1kHz (Front-out) :
>0.00036 %(-108 dB)
Frequency Response (-3dB, 24bit/192KHz input) :
10 Hz to 48 KHz
Output/Input Full-Scale Voltage :
Unbalanced Output : 2 Vrms ( Vp-p)
Headphone : 7 Vrms ( Vp-p)


Audio Processor :C-Media CM6631A High-Definition Sound Processor

Sample Rate and Resolution

Analog Playback Sample Rate and Resolution :
44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit
ASIO Driver Support :
44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit


Analog Output 
1 x 6.3 mm jack (1/4") Headphone out
2 x RCA (Un-Balanced) 
2 x S/PDIF in (1 x Optical (Toslink)/1 x Coaxial)
1 x Aux in 3.5mm jack (1/8”)

Operating System

Windows® 8 , 32bit/64bit
Windows® 7 , 32bit/64bit
Windows® XP , 32bit/64bit
Mac OS X *


6.3mm to 3.5mm stereo adapter x 1
Driver CD x 1
Quick Start Guide x 1
USB cable x 1

Power cord x 1
Power adapter x 1



Swappable operational amplifier:
●I/V: LME49720 x 2
●LPF: LM4562 x 1

Output impedance:
●Line out: 100 ohm
●Headphone out: 10 ohm

●Crystal clock: 12MHz
●Oscillator: 45.1584MHz (44.1kHz);49.152MHz (48kHz)

Power supply type:
●Power consumption(Max): 12W
●Power input jack: DC in 12V
●Power input range: AC 90~264V

*Xonar Essence STU supports OS X 10.6 or above for playback.



Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.

All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.

PCB color and bundled software versions are subject to change without notice.

Brand and product names mentioned are trademarks of their respective companies.




Mnenja in ocene

Trenutno ni ocen.

Napiši mnenje

Asus Xonar Essence STU

Asus Xonar Essence STU

Asus Xonar Essence STU je vrhunski USB DA Konverter (DAC) in ojačevalnik za slušalke (600Ohm) z asinhronskim USB avdio. Vrhunska izdelava, izjemna kvaliteta najmanjšega brata v seriji Asus Hi-Fi zunanjih enot.