Asus
Xonar Essence STU

Product information: Xonar Essence STU

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.


- 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
- Dedicated Volume Controls one for the headphone amp the outher for speakers
- USB, Toslink and Coaxial S/PDIF inputs


Specifications:-
- Audio Interface:- USB
- 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:
- Balanced Output : 2 Vrms ( Vp-p)
- Headphone : 7 Vrms ( Vp-p)
- Audio Processor :C-Media CM6631 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
- S/PDIF Digital Input : 44.1K/48K/96K/192KHz @ 16bit/24bit
- Dimensions: 261.33 x 230 x 60.65 mm ( L x W x H )

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

Accessories:-
- Driver CD x 1
- 6.3mm to 3.5mm stereo adapter x 1
- Audio Precision (AP) test report x 1
- User manual x 1
- USB cable x 1
- Power cord x 1