Xonar U7 MKII
7.1 USB Soundcard & Headphone
Amplifier
User Manual
Table of Content
Introduction ..................................................................................... 4
Hardware.......................................................................................... 7
Bottom view....................................................................................... 7
5.
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ASUS Xonar U7 MKII User Manual
1.
Introduction
1.1
Package contents
Check your ASUS Xonar™ U7 MKII audio card package for the following items:
•
•
•
•
ASUS XonarTM U7 MKII 7.1-Channel USB Audio Card
S/PDIF TOSLINK optical adapter x 1
Quick Start Guide
USB Cable x 1
1.2
System requirements
To ensure a successful installation of the Xonar U7 MKII audio card, make sure
that your computer meets the following requirements:
•
•
•
•
•
USB port 2.0 and above
Microsoft® Windows® 10 / 8.1 / 7 (32/64bit)
Intel® Pentium® 4 1.4GHz or AMD Athlon 1400 CPU or faster CPU
More than 256MB system memory
More than 60MB available storage space for driver installation
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ASUS Xonar U7 MKII User Manual
1.3
General Specification
Items
Description
Audio Performance
Output Signal-to-Noise Ratio (A-
Weighted)
up to 114dB
Input Signal-to-Noise Ratio (A-
Weighted):
110dB
Output Total Harmonic Distortion + up to 0.0006% (104dB)
Noise at 1kHz (A-Weighted) :
Input Total Harmonic Distortion +
Noise at 1kHz (A-Weighted) :
up to 0.0001% (-100dB)
< 10Hz to 46KHz
Frequency Response (-3dB, 24-
bit/96kHz format):
Output / Input Full-Scale Voltage
1 Vrms (2.828 Vp-p) for line out
1.3 Vrms (3.677 Vp-p) for headphone out
1 Vrms (3.677 Vp-p) for line in
Bus Compatibility
USB audio class
- USB audio class 2.0 for all functions
- USB audio class 1.0 for playback
Main Chipset
Cmedia 6632AX High-Performance Sound
Processor (Max. 192KHz / 24bit)
Audio Processor
D-A Converter of Digital Sources
Cirrus CS4398* 1 (120dB SNR, Max. 192kHz/24bit)
Cirrus CS4362* 1 (114dB SNR, Max. 192kHz/24bit)
A-D Converter for Analog Inputs
Cirrus CS5361* 1 (114dB SNR, Max. 192kHz/24bit)
Sample Rate and Resolution
Analog Playback Sample Rate and 44.1K/48K/88.2K//96K/172.4K/192KHz @ 16/24bit
Resolution
Analog Recording Sample Rate
and Resolution
44.1K/48K/88.2K//96K/172.4K/192KHz @ 16/24bit
S/PDIF Digital Output
44.1K/48K/88.2K//96K/172.4K/192KHz @ 16/24bit
44.1K/48K/88.2K//96K/172.4K/192KHz @ 16/24bit
ASIO 2.0 Driver Support
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ASUS Xonar U7 MKII User Manual
Items
Description
I/O Ports
Analog Output Jack
RCA (phone) jack * 2 (Front left / Front right)
3.50mm mini jack * 3 for surround
(Side/Center-Subwoofer/Rear-out)
3.50mm mini jack * 1 (Headphone out)
Analog Input Jack
Button
3.50mm mini jack * 1 (Shared by Line-In / Mic-In)
Output volume knob/Output selection / Microphone
Volume)
Digital S/PDIF Output
High-bandwidth coaxial port supports 192HKz/24bit
with one S/PDIF TOSLINK optical adapter
Driver Features
Operating System
Windows® 10 / 8.1 / 7 (32/64bit)
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ASUS Xonar U7 MKII User Manual
No.
1.
Items
Description
Headphone Out port
Connect your headphone to this port.
Connect your external PC microphone to this 3.5mm
port for voice input.
Microphone In port
Line In port
2.
Connect analog devices like MP3 players, CD players,
music synthesizers, and other line-level sound sources
to this 3.5mm port for audio recording or processing.
Microphone Volume
Control
Press to increase or decrease microphone volume.
3.
4.
Output Selection
Indicator
LED indicator indicates different output selection
(Headphone/Speaker/S/PDIF).
Output Selection/
Volume Control
Rotate to adjust the playback volume. Press to select
an output source.
5.
For 2/4/5.1/7.1 channel speaker systems, connects to
the front right input on the powered speakers.
6.
Front (R) Out port
Front (L) Out port
For 2/4/5.1/7.1 channel speaker systems, connects to
the front left input on the powered speakers.
7.
Side Surround Out
port
Connects to the surround channel input on 7.1 powered
analog speakers.
8.
Center/Subwoofer Out Connects to the center/subwoofer input on 5.1/7.1
9.
port
powered analog speakers.
Connects to the back surround input on 4/5.1/7.1
powered analog speakers.
10.
Rear Out port
Coaxial digital output port. Connects to an external
digital decoder or digital speaker systems, Home
Theater systems, AV receivers for outputting digital
audio including PCM, Dolby Digital, DTS, etc. Connects
to the surround channel input on 4/5.1/7.1 powered
analog speakers. Through S/PDIF-Out it will deliver
stereo PCM and use DDL for 5.1 channel.
11.
S/PDIF Out port
USB Port
12.
13.
Connects to your computer using a USB Type B-A lead.
Move this switch to toggle between USB Audio 2.0
and USB Audio 1.0 connection. Use USB Audio 1.0
for plug and play. Use USB Audio 2.0 on a mac (Apple
computer).
USB Audio 1.0/2.0
switch
USB Audio 1.0/2.0 switch is located at the bottom side of the audio card. USB
Audio 1.0 connection has the following limitations:
•
•
Only supports playback features.
7.1 speakers, Headphone, Mic In / Line-In, and SPDIF Out can only
support sample rates of 44.1KHz/48KHz @16-bit.
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ASUS Xonar U7 MKII User Manual
3.
Driver Installation
Installing the Xonar U7 MKII Card Driver
After installing the Xonar U7 MKII audio card on your computer, you need to
install the device driver that enables the Xonar U7 MKII audio card to work with
download the latest driver.
The driver is required only when you connect the Xonar U7 MKII to a PC or
notebook.
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ASUS Xonar U7 MKII User Manual
4.1.2
Connecting digital audio systems
AVR
S/PDIF
1
No.
1.
Items
Description
Connect an AVR to this S/PDIF output port.
S/PDIF Output port
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ASUS Xonar U7 MKII User Manual
4.1.3
Connecting microphone / Line-In
OR
1
HP Out Mic In/Line In
No.
1.
Items
Description
Microphone In /
Line In port
Connect the microphone’s 3.5mm plug into this Mic-In
port for voice communication, recording, or karaoke.
Connect the 3.5mm plug of the CD/MP3 Player or any
other Line level analog audio sources into this Line-In
port for sound recording.
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4.2.2
Connecting 5.1 channel headphones
2
1
3 4
No.
Items
Description
1.
2.
3.
4.
Front (R) Out port Connects to the front right input port of 5.1 channel
headphones using the RCA cable.
Front (L) Out port Connects to the front left input port of 5.1 channel
headphones using the RCA cable.
Center/Subwoofer Connect the Center/Bass-channel 3.5mm plug of your
Out port
5.1 channel headphone into this jack.
Rear Surround
Out port
Connects to the rear surround input port of your 5.1
channel headphone.
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4.2.3
Connecting analog speaker systems
Connecting 2 channel speakers
2
1
No.
1.
Items
Description
Front (R) Out port
Connects to the front right input port of 2 channel
speakers using the RCA cable.
2.
Front (L) Out port
Connects to the front left input port of 2 channel
speakers using the RCA cable.
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Connecting 4 channel speakers / power amplifier
OR
Amplifier
3
1
2
No.
1.
Items
Description
Front (R) Out port
Connects to the front right input port of 4 channel
speakers.
2.
3.
Front (L) Out port
Connects to the front left input port of 4 channel
speakers.
Rear Surround Out
port
Connects to the rear surround input port of 4 channel
speakers.
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ASUS Xonar U7 MKII User Manual
Connecting 5.1 channel speakers
3
4
1
2
No.
1.
Items
Description
Front (R) Out port
Connects to the front right input port of 5.1 channel
speakers.
2.
3.
4.
Front (L) Out port
Connects to the front left input port of 5.1 channel
speakers.
Center/Subwoofer
Out port
Connects to the Center and Subwoofer input ports of 5.1
channel speakers.
Rear Surround Out
port
Connects to the rear surround input port of 5.1 channel
speakers.
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ASUS Xonar U7 MKII User Manual
Connecting 7.1 channel speakers
3 4
1 2
5
No.
1.
Items
Description
Front (R) Out port
Connects to the front right input port of 7.1 channel
speakers.
2.
3.
4.
5.
Front (L) Out port
Connects to the front left input port of 7.1 channel
speakers.
Side Surround Out
port
Connects to the Left surround and Right surround input
ports of 7.1 channel speakers.
Center/Subwoofer
Out port
Connects to the Center/Subwoofer input port of 7.1
channel speakers using the mini-jack cable.
Rear Surround Out
port
Connects to the rear surround input port of 7.1 channel
speakers.
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ASUS Xonar U7 MKII User Manual
5.
Troubleshooting
1.
I cannot install the audio card driver in my PC.
(1). Ensure that you have switched the USB sound card to USB Audio 2.0 and
plugged it to the USB port.
(2). Make sure that the LEDs light up.
(3). Ensure that you have the latest driver version.
(4). Check that the Windwos hardware Device Manager has detected the device.
(5). Restart your computer.
(6). Try to plug the device into another USB port.
2. I cannot find the Xonar U7 MKII Audio Center.
(1). Make sure you have installed the driver.
(2). Find the Xonar U7 MKII Audio Center icon in the system tray on the right
bottom of the screen. Double click the icon to launch the Xonar U7 MKII
Audio Center utility.
(3). If you cannot find the icon in the system tray, go to the Windows Control
Panel and double click the Xonar U7 MKII Audio Center icon to make it
visible in the system tray again.
(4). After the driver installation is complete, it’s recommended that you reboot
your computer to complete the setup. If the icon still doesn’t appear, please
try installing the driver package again.
3. I can’t hear any sound from my analog speakers
(1). Ensure that you have connected speakers properly and have powered on
your speakers.
(2). Ensure that the device master volume or the software player has NOT been
muted in the Xonar U7 MKII Audio Center.
(3). Ensure that the output LED indicator matches the output source configured in
the device.
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ASUS Xonar U7 MKII User Manual
(4). If you are using Dolby Digital Live encoder through the S/PDIF output, the
analog output will be muted to get rid of the interference between your digital
speaker system and analog speakers or headphones. Please check if this is
the case.
(5). Please go to the sound and audio device of Windows® Control Panel to check
whether the playback default device is set to Xonar U7 MKII Audio Device,
instead of other onboard AC97 or HDA codec device. If it’s not, please set it
to Xonar U7 MKII Audio Device and restart your applications.
(6). Restart your computer.
4. I can’t hear any sound from the S/PDIF output
(1). Ensure that you have enabled S/PDIF output in the Audio Center GUI (Main
page).
(2). Ensure that you have connected the correct S/PDIF output jack in the card to
the decoder’s (AV receiver) S/PDIF input jack.
(3). You may need to select the correct input and mode of your decoder or AV
receiver. For Dolby Digital or DTS output, double check that the AV receiver
is in that decoding mode.
(4). If you are using 192KHz PCM output, make sure that your decoder can
support 192KHz decoding. Try changing it to 44.1K or 48KHz first.
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ASUS Xonar U7 MKII User Manual
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