Measurement's report ASUS Xonar U7 test and graphs - Reference Audio Analyzer

ASUS Xonar U7 is available in reports and services. You are in a professional report.

Service and suite of tests

Information for entry level users

report for a newbie
(Headphone amplifier)

Information for all

Information for professionals

report for a pro
(Headphone amplifier)

(DAC Line Out)

Comparison of on-line graphs


Reports / ASUS / Xonar U7 / Amplifier path / report for a pro

Test report ASUS Xonar U7 (report for a pro)






Test report - general data of ASUS Xonar U7 as AMP mode

Frequency response, Impedance and Frequency response with standard headphones


Graphics setting view
Range, dB:


General results
General results
ASUS Xonar U7
Channel
Left
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,06, 0,08
Average value of impedance band in 40 Hz to 15 kHz, ohm
19,8
Max voltage output
VRMS
dBV
Maximum current output at loaded
ohm
mA
Max power output
ohm
mW
dBm

The table shows a most important technical characteristics of ASUS Xonar U7



Test conditions
  • For record of test signals RAA was used ADC: E-MU 1616m
  • During tests RAA software-hardware measuring complex was used galvanic isolated power transformer and was excluded the effect of ground loop in the spectra



Frequency response of ASUS Xonar U7 as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response ASUS Xonar U7
Channel
Left
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,06, 0,04

Impedance of ASUS Xonar U7 as AMP mode





Table of measured characteristics
Impedance ASUS Xonar U7
Channel
Left
Impedance average in band from 40 Hz to 15 kHz, ohm
19,8
Resistance at 500 Hz, ohm
19,3
Resistance at 1000 Hz, ohm
19,3
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
3741,6
The minimum value in band from 40 Hz to 15 kHz, ohm
19,2
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
40,5
The maximum value in band from 40 Hz to 15 kHz, ohm
24,1

Frequency response of ASUS Xonar U7 with loaded resistors as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response of amplifier headphone amplifier ASUS Xonar U7
with resistive load
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 ohm, dB
1,13
Variation in frequency response in band 40 Hz to 15 kHz loaded 32 ohm, dB
0,79
Variation in frequency response in band 40 Hz to 15 kHz loaded 50 ohm, dB
0,59
Variation in frequency response in band 40 Hz to 15 kHz loaded 100 ohm, dB
0,35
Variation in frequency response in band 40 Hz to 15 kHz loaded 250 ohm, dB
0,16
Variation in frequency response in band 40 Hz to 15 kHz loaded 600 ohm, dB
0,07

Frequency response of ASUS Xonar U7 loaded dynamic headphone type as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response of the headphone amplifier ASUS Xonar U7
loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
1,63

Deviation of frequency response of ASUS Xonar U7 loaded dynamic headphone type as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response of amplifier ASUS Xonar U7
loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
1,70

Frequency response of ASUS Xonar U7 loaded type balance armature headphone type (one driver) as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response of amplifier ASUS Xonar U7
loaded type balanced armature
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
7,07

Deviation of frequency response of ASUS Xonar U7 loaded type balance armature headphone type (one driver) as AMP mode


Graphics setting view
Range, dB:




Table of measured characteristics
Frequency response of amplifier ASUS Xonar U7
loaded type balanced armature
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
6,93



Maximum voltage output level vs load of ASUS Xonar U7 as AMP mode





Table of measured characteristics

The device was tested for a long time, a method of constructing the graph and table were outdated and not suitable for direct comparison of values between different devices. The current data are the closest to "Before hard overload" as the maximum level before clipping. The latest version of the methodology uses to build on the characters of the spectra and divided into "Pure power @ class A", "Optimal power @ class AB", "Hard power @ B class" and "Before hard overload".

Now the original data to update the graph and table no. Require re-testing of the device. Re-test will be conducted only in the presence of the device in a test lab RAA.

CloseMore detailed
Reports and testing methodology is gradually updated. We try to generate the report in such a way that it would have been a single kind of report for all devices, convenient for direct comparison.

We constantly introduce new tests and improving the options for displaying graphs and parameters. It introduces different changes in reports. Because reports are generated automatically, the updates do not take much time.

In the development and implementation of new tests, new reports are more complete. To update some charts and tables may require additional time to process the raw data separately for each device.

Some devices require re-testing.



The maximum voltage level load before overload or the certain level of distortion ASUS Xonar U7
(the values of the maximum current and voltage)
Limit
Pure
Optimal
Hard
Level
VRMS
dBV
VRMS
dBV
VRMS
dBV
loaded 16 ohm
N/А
N/А
N/А
N/А
0,56
-4,98
loaded 24 ohm
N/А
N/А
N/А
N/А
0,69
-3,24
loaded 30 ohm
N/А
N/А
N/А
N/А
0,76
-2,40
loaded 50 ohm
N/А
N/А
N/А
N/А
0,90
-0,93
loaded 100 ohm
N/А
N/А
N/А
N/А
1,04
0,37
loaded 200 ohm
N/А
N/А
N/А
N/А
1,13
1,10
loaded 300 ohm
N/А
N/А
N/А
N/А
1,17
1,36
loaded 600 ohm
N/А
N/А
N/А
N/А
1,21
1,63
loaded 750 ohm
N/А
N/А
N/А
N/А
1,21
1,68





Maximum current level output vs load of ASUS Xonar U7 as AMP mode





Table of measured characteristics

The device was tested for a long time, a method of constructing the graph and table were outdated and not suitable for direct comparison of values between different devices. The current data are the closest to "Before hard overload" as the maximum level before clipping. The latest version of the methodology uses to build on the characters of the spectra and divided into "Pure power @ class A", "Optimal power @ class AB", "Hard power @ B class" and "Before hard overload".

Now the original data to update the graph and table no. Require re-testing of the device. Re-test will be conducted only in the presence of the device in a test lab RAA.

CloseMore detailed
Reports and testing methodology is gradually updated. We try to generate the report in such a way that it would have been a single kind of report for all devices, convenient for direct comparison.

We constantly introduce new tests and improving the options for displaying graphs and parameters. It introduces different changes in reports. Because reports are generated automatically, the updates do not take much time.

In the development and implementation of new tests, new reports are more complete. To update some charts and tables may require additional time to process the raw data separately for each device.

Some devices require re-testing.



Maximum output current level vs load at overload or achive the certain level of distortion ASUS Xonar U7
(the values of the maximum current and voltage)
Limit
Pure
mA
Optimal
mA
Hard
mA
loaded 16 ohm
N/А
N/А
35,22
loaded 24 ohm
N/А
N/А
28,76
loaded 30 ohm
N/А
N/А
25,15
loaded 50 ohm
N/А
N/А
17,92
loaded 100 ohm
N/А
N/А
10,43
loaded 200 ohm
N/А
N/А
5,69
loaded 300 ohm
N/А
N/А
3,88
loaded 600 ohm
N/А
N/А
2,01
loaded 750 ohm
N/А
N/А
1,62



Maximum power level output level vs load of ASUS Xonar U7 as AMP mode





Table of measured characteristics

The device was tested for a long time, a method of constructing the graph and table were outdated and not suitable for direct comparison of values between different devices. The current data are the closest to "Before hard overload" as the maximum level before clipping. The latest version of the methodology uses to build on the characters of the spectra and divided into "Pure power @ class A", "Optimal power @ class AB", "Hard power @ B class" and "Before hard overload".

Now the original data to update the graph and table no. Require re-testing of the device. Re-test will be conducted only in the presence of the device in a test lab RAA.

CloseMore detailed
Reports and testing methodology is gradually updated. We try to generate the report in such a way that it would have been a single kind of report for all devices, convenient for direct comparison.

We constantly introduce new tests and improving the options for displaying graphs and parameters. It introduces different changes in reports. Because reports are generated automatically, the updates do not take much time.

In the development and implementation of new tests, new reports are more complete. To update some charts and tables may require additional time to process the raw data separately for each device.

Some devices require re-testing.



Maximum output power level vs load at overload or achive the certain level of distortion ASUS Xonar U7
(the values of the maximum current and voltage)
Limit
Pure
Optimal
Hard
Level
mW
dBm
mW
dBm
mW
dBm
loaded 16 ohm
N/А
N/А
N/А
N/А
0,02
-34,05
loaded 24 ohm
N/А
N/А
N/А
N/А
0,02
-34,07
loaded 30 ohm
N/А
N/А
N/А
N/А
0,02
-34,39
loaded 50 ohm
N/А
N/А
N/А
N/А
0,02
-35,87
loaded 100 ohm
N/А
N/А
N/А
N/А
0,01
-39,27
loaded 200 ohm
N/А
N/А
N/А
N/А
0,01
-43,81
loaded 300 ohm
N/А
N/А
N/А
N/А
0,00
-46,86
loaded 600 ohm
N/А
N/А
N/А
N/А
0,00
-52,33
loaded 750 ohm
N/А
N/А
N/А
N/А
0,00
-54,14





THD vs load vs output voltage of ASUS Xonar U7 as AMP mode


Graphics setting view
Load, ohm:




Table of measured characteristics

скрыть

Measurements of ASUS Xonar U7 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The ASUS Xonar U7 test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.

I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a headphones and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com




ASUS Xonar U7 is available in reports and services. You are in a professional report.

Service and suite of tests

Information for entry level users

report for a newbie
(Headphone amplifier)

Information for all

Information for professionals

report for a pro
(Headphone amplifier)

(DAC Line Out)

Comparison of on-line graphs






Original text in Russian page. Translation page is not yet ready

You can help with translation via the: forum, facebook and feedback.


Comments

No comments to ASUS Xonar U7
Commentary view:





Want to leave a comment or ask a question? Register now or log in