Home > News > Asus debuts the Xonar U7 MKII USB sound card and headphone amp

Asus debuts the Xonar U7 MKII USB sound card and headphone amp

ASUS today announced the upgraded version of the Xonar U7 external sound card, dubbed the U7 MKII.

Similar to the U7, the new Xonar U7 MKII features a compact USB-powered design and delivers true 7.1-channel, 192KHz/24-bit high-definition (HD) surround-sound output. Inside the Xonar U7 MKII is a high-quality Cirrus Logic CS4398 digital-to-analog converter (DAC), which has been coupled with exclusive ASUS Hyper Ground technology, delivering a 114dB signal-to-noise ratio (SNR) for ultra-pure sound.

With gamers in mind, the Xonar U7 MKII allows users to make instant audio adjustments without interrupting their game, thanks to dedicated headphone and microphone controls. The master volume control can be used as an output selector as well, allowing you to easily switch between your speakers and headphones with a simple click of a button.

The Xonar U7 MKII comes with Sonic Studio as well, a full-featured and simple sound utility that gives users complete control over their audio. It offers various features such as equalization (EQ) and 7.1 surround speaker level-balancing. The utility includes Sonic Radar Pro controls as well, which lets you precisely map in-game sounds – such as footsteps and gunshots – and display them on an on-screen overlay, giving gamers an advantage in FPS games.


Audio Performance
Output signal-to-noise ratio
Up to 114dB
Input signal-to-noise ratio
Output total harmonic distortion + noise at 1khz (A-weighted) Up to 0.0006% (104dB)
Input total harmonic distortion + noise at 1kHz (A-weighted) Up to 0.001% (-100dB)
Frequency response
(-3dB, 24-bit/96kHz input )
<10Hz to 46kHz
Output/input full-scale voltage Rear output (Speaker) 1Vrms (2.828 Vp-p)

Headphone 1.3Vrms (3.677 Vp-p)

Line-in 1Vrms (3.677Vp-p)

Bus Compatibility
USB audio class USB audio class 2.0 for all functions

USB audio class 1.0 for playback

Main Chipset Sensors
Audio processor CMedia 6632AX

High-performance sound processor

(Max. 192KHz/24-bit)

D-A converter (digital sources) 1 x Cirrus CS4398 (120dB SNR, Max. 192kHz/24-bit)

1 x Cirrus CS4362 (114dB SNR, Max. 192kHz/24-bit)

A-D converter (analog input) 1x Cirrus CS5361 (114dB SNR, Max. 192kHz/24-bit)



Sample Rate and Resolution
Analog playback sample rate and resolution 44.1K/48K/88.2K/96K/172.4K/192KHz @ 16/24-bit
Analog recording sample rate and resolution 44.1K/48K/88.2K/96KHz/172.4K/192K @ 16/24-bit
S/PDIF digital output 44.1K/48K/88.2K/96K/172.4K/192KHz @ 16/24-bit
ASIO 2.0 driver support 44.1K/48K/88.2K/96K/172.4K/192KHz @ 16/24-bit
I/O Ports
Analog output jack 3 x 3.5mm mini-jack for surround-sound output

(front / side / center-subwoofer / back)

1 x 3.5mm mini-jack for headphones

Analog input jack 3.50mm mini jack (line-in/mic-in)
Buttons Output Volume / Headphones / Speaker Select / Microphone Volume
Digital S/PDIF output High-bandwidth optical/coaxial connector supports 192khz/24-bit
Front-panel audio header None
Driver Features
Operating system Windows 10/8.1/7(32/64-bit)


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