Measurement's report ASUS ROG Xonar Phoebus - Reference Audio Analyzer

ASUS ROG Xonar Phoebus

About this report
This is a report for professionals with a suite of test of headphone amplifier.
You can see a simple report for "dummies" with explanations of the main characteristics for ASUS ROG Xonar Phoebus

A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".

Line-out, differences from the output for headphones and speakers

Advantages and disadvantages of balanced amplifiers

Test report - general data ASUS ROG Xonar Phoebus (as headphone amplifier)

Frequency response, Impedance and Frequency response with standard headphones

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Voltage levels from the load at the output of the amplifier

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Average value of impedance band in 40 Hz - 15 kHz10.5ohm
Voltage:
Linear Mode / Maximum or before clipping level
15.4/16.4dBV
5.9/6.6VRMS
Current:
Linear Mode / Maximum or before clipping level
35.5/46.9dB(mA)
59.6/222.0mA





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Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





Frequency response ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Range

Channel:LeftRight
Variation in frequency response in band from 40 Hz - 15 kHz -0.1, +0.0-0.1, +0.0dB



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



Impedance ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz10.5 10.6ohm
The minimum value in band from 40 Hz - 15 kHz10.5 10.6ohm
The maximum value in band from 40 Hz - 15 kHz10.5 10.6ohm


Comparison of basic characteristics AMPs


Brief information

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Crosstalk ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Range

Load

Channel:LeftRight
Crosstalk @ 1 kHz @ 15.8 ohm -65.5 -65.8dB
Crosstalk @ 1 kHz @ 24.5 ohm -68.1 -68.4dB
Crosstalk @ 1 kHz @ 30.5 ohm -69.6 -70.0dB
Crosstalk @ 1 kHz @ 62.4 ohm -74.8 -75.0dB
Crosstalk @ 1 kHz @ 100.0 ohm -78.5 -78.7dB
Crosstalk @ 1 kHz @ 198.9 ohm -84.0 -84.2dB
Crosstalk @ 1 kHz @ 300.0 ohm -87.4 -87.7dB
Crosstalk @ 1 kHz @ 763.0 ohm -95.0 -95.1dB
Crosstalk @ 1 kHz @ Not loaded-105.7 -106.9dB



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



Frequency response ASUS ROG Xonar Phoebus with resistive load

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Channel

Range

Frequency response of amplifier with resistive load @ 40 Hz - 15 kHz
Channel:LeftRight
TEST 16 ? + ASUS ROG Xonar Phoebus 0.00.0dB
TEST 32 ? + ASUS ROG Xonar Phoebus 0.00.0dB
TEST 64 ? + ASUS ROG Xonar Phoebus 0.00.0dB
TEST 126 ? + ASUS ROG Xonar Phoebus 0.00.0dB
TEST 256 ? + ASUS ROG Xonar Phoebus 0.00.0dB
TEST 512 ? + ASUS ROG Xonar Phoebus 0.00.0dB



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



Frequency response ASUS ROG Xonar Phoebus loaded dynamic headphone type

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Channel

Range

Frequency response of amplifier loaded dynamic headphone type @ 40 Hz - 15 kHz
Channel:LeftRight
TEST 10000 ? + ASUS ROG Xonar Phoebus 0.00.0dB
Grado GH4 Limited Edition + ASUS ROG Xonar Phoebus 1.61.5dB



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



Frequency response ASUS ROG Xonar Phoebus loaded type balance armature headphone type

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Channel

Range

Frequency response of amplifier loaded type balance armature headphone type @ 40 Hz - 15 kHz
Channel:LeftRight
TEST 10000 ? + ASUS ROG Xonar Phoebus 0.00.0dB
Campfire Audio Andromeda + ASUS ROG Xonar Phoebus 8.78.7dB
Fearless Audio S8F Freedom + ASUS ROG Xonar Phoebus 7.06.5dB



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



THD vs load vs output voltage ASUS ROG Xonar Phoebus

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Channel

Load

Harmonic, number

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Channel

Load

Harmonic, number

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Channel

Load


Brief information

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Maximum voltage output level vs load ASUS ROG Xonar Phoebus

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Type of chart

RAW coordinates

Power characteristics of the Voltage Current
dBVVRMSdB(mA)mA
Equivalent class A 15.45.935.559.6
Equivalent class AB 15.45.946.9222.0
Equivalent class B 15.45.946.9222.0
Maximum mode 16.46.646.9222.0


Volume Control TypeDigital
Optimal range of volume control36.0dB
Signal/Noise / Maximum106.0/16.4dB/dBV
Signal/Noise @ -14.9 dBV 32 ohm (1 mW)77.15dB
Signal/Noise @ -5.2 dBV 300 ohm (1 mW)84.69dB


Comparison ASUS ROG Xonar Phoebus and another amplifiers by loudness (Volume Level)

Main characteristics of the ASUS ROG Xonar Phoebus


Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



Maximum voltage output level vs load ASUS ROG Xonar Phoebus

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Type of chart

RAW coordinates

Maximum Amplifier Voltage Level
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dBVVRMSdBVVRMSdBVVRMSdBVVRMS
15.8 ohm -0.11.010.91.010.91.010.91.0
24.5 ohm 4.31.612.31.612.31.612.31.6
30.5 ohm 4.81.712.81.712.81.712.81.7
62.4 ohm 10.13.214.13.214.13.215.13.2
100 ohm 15.56.014.56.014.56.015.56.0
198.9 ohm 14.95.614.95.614.95.615.95.6
300 ohm 15.15.715.15.715.15.716.15.7
763 ohm 15.35.815.35.815.35.816.35.8
Not loaded15.45.915.45.915.45.916.45.9



Maximum level of amplifier current
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dB(mA)mAdB(mA)mAdB(mA)mAdB(mA)mA
15.8 ohm 36.062.946.9222.046.9222.046.9222.0
24.5 ohm 36.566.944.5168.244.5168.244.5168.2
30.5 ohm 35.257.243.1143.743.1143.743.1143.7
62.4 ohm 34.251.038.280.938.280.939.190.7
100 ohm 35.559.834.553.334.553.335.559.8
198.9 ohm 29.028.129.028.129.028.130.031.5
300 ohm 25.518.925.518.925.518.926.521.2
763 ohm 17.67.617.67.617.67.618.68.5


Power
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dBmmWdBmmWdBmmWdBmmW
15.8 ohm 18.062.528.9778.828.9778.828.9778.8
24.5 ohm 20.4109.728.4692.928.4692.928.4692.9
30.5 ohm 20.099.828.0629.828.0629.828.0629.8
62.4 ohm 22.1162.526.1408.226.1408.227.1512.9
100 ohm 25.5357.324.5284.024.5284.025.5357.3
198.9 ohm 22.0156.922.0156.922.0156.923.0197.4
300 ohm 20.3107.620.3107.620.3107.621.3135.5
763 ohm 16.444.116.444.116.444.117.455.5



Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



   

Spectrum of Total Harmonic Distortion vs Level ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Level

Range

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Channel

Level

Range

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Channel

Shift

dBm

Range

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Shift

dBV

Range




Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



   

Spectrum of Multitone Distortion vs Level vs Load ASUS ROG Xonar Phoebus (as headphone amplifier)

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Level

Range

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Channel

Level

Range

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Shift

dBm

Range

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Channel

Shift

dBV

Range


Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



   

Spectrum of IMD SMPTE vs Level ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Level

Range

Range

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Channel

Level

Range

Range

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Channel

Shift

Range

dBm

Range

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Channel

Shift

Range

dBV

Range


Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



   

Spectrum of IMD CCIF vs Level ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Level

Range

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Channel

Level

Range

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Shift

dBm

Range

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Channel

Shift

dBV

Range


Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



   

Spectrum of Noise Distortion vs Level vs Load ASUS ROG Xonar Phoebus (as headphone amplifier)

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Channel

Level

Range

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Channel

Level

Range

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Channel

Shift

dBm

Range

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Channel

Shift

dBV

Range


Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





More detailed

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

The ASUS ROG Xonar Phoebus 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



Information for Authors. You can freely use the graphics in your articles with a link to us.












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Comments

Commentary view:





W3sley_D
Изображения, медиа и смайлы доступны в исходном чате.
2020-10-24 02:19:56

Комментарий к оглавлению отчетов ASUS ROG Xonar Phoebus
Здравствуйте. у ASUS ROG Xonar Phoebus есть 3 режима усиления (в драйвере)
1.обычный(0 дб для менее 64ом наушников)
2.средний (+6дб для 64ом и более)
3-макс (+12дб для 150ом+) (цифры взяты из драйвера)
вопрос: beyerdynamic dt 770 pro 80 ohm и audio-technica ath a900(40ом), наушники разные. есть ли смысл в этих режимах для наушников? стоит ли руководствоваться подсказкой из драйвера по ОМам?
Reply


romanrex
Изображения, медиа и смайлы доступны в исходном чате.
2020-10-24 08:53:00

Комментарий к оглавлению отчетов ASUS ROG Xonar Phoebus

W3sley_D 2020-10-24 02:19:56
Комментарий к оглавлению отчетов ASUS ROG Xonar Phoebus
Здравствуйте. у ASUS ROG Xonar Phoebus есть 3 режима усиления (в драйвере)
1.обычный(0 дб для менее 64ом наушников)
2.средний (+6дб для 64ом и более)
3-макс (+12дб для 150ом+) (цифры взяты из драйвера)
вопрос: beyerdynamic dt 770 pro 80 ohm и audio-technica ath a900(40ом), наушники разные. есть ли смысл в этих режимах для наушников? стоит ли руководствоваться подсказкой из драйвера по ОМам?



Эти значения просто ограничивают максимальный уровень громкости. Если на 100% в максимальном режиме карта не используется, то при установке меньшего усиления регулировать громкость будет удобнее.

Так как большинство низкоомных наушников более чувствительные по напряжению, а высокоомные наоборот, то привязка к Ом просто для наглядности.
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