Asus Xonar Essence STU

Xonar Essence STU
USB DAC and headphone amplifier features asynchronous USB audio and 600ohm headphone amplifier

- 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

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)

Bus Compatibility - USB 2.0 high-speed
Chipset - 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

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”)

Operating System:

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

Accessories:

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



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

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

Clock:
●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.



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