Measurement's report ASUS K50IJ - Reference Audio Analyzer

Reports / ASUS / K50IJ / A set of device tests as a headphone amplifier - report for a pro

Test report ASUS K50IJ (report for a pro)

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 K50IJ

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".

Test report - general data ASUS K50IJ (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 kHz40.5ohm
Voltage:
Pure or equal class A / Maximum or before clipping level
-1.0/1.0dBV
0.9/1.1VRMS
Current:
Pure or equal class A / Maximum or before clipping level
16.1/26.3dB(mA)
6.4/20.5mA






Frequency response ASUS K50IJ (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 headphone models with advanced graph display settings.



Impedance ASUS K50IJ (as headphone amplifier)

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz40.9 40.0ohm
The minimum value in band from 40 Hz - 15 kHz40.9 40.0ohm
The maximum value in band from 40 Hz - 15 kHz40.9 40.0ohm


Comparison of basic characteristics AMPs

Brief information

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



Crosstalk ASUS K50IJ (as headphone amplifier)

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Channel

Range

Load

Channel:LeftRight
Crosstalk @ 1 kHz @ 15.8 ohm -62.3 -62.6dB
Crosstalk @ 1 kHz @ 24.5 ohm -63.1 -64.0dB
Crosstalk @ 1 kHz @ 30.5 ohm -64.8 -64.6dB
Crosstalk @ 1 kHz @ 62.4 ohm -65.2 -66.4dB
Crosstalk @ 1 kHz @ 100.0 ohm -70.9 -70.7dB
Crosstalk @ 1 kHz @ 198.9 ohm -72.5 -76.5dB
Crosstalk @ 1 kHz @ 300.0 ohm -78.2 -76.1dB
Crosstalk @ 1 kHz @ 763.0 ohm -82.3 -80.4dB
Crosstalk @ 1 kHz @ Not loaded-81.3 -82.1dB


Brief information

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



Crosstalk Phase ASUS K50IJ (as headphone amplifier)

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Channel

Load



Brief information

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



Frequency response ASUS K50IJ with resistive load

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Channel

Range

Frequency response of amplifier with resistive load @ 40 Hz - 15 kHz
Channel:LeftRight
HP 16 Ω + ASUS K50IJ 2.22.3dB
HP 32 Ω + ASUS K50IJ 1.81.8dB
HP 64 Ω + ASUS K50IJ 1.31.3dB
HP 126 Ω + ASUS K50IJ 0.80.8dB
HP 256 Ω + ASUS K50IJ 0.50.5dB
HP 512 Ω + ASUS K50IJ 0.30.3dB


Brief information

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



Frequency response ASUS K50IJ loaded dynamic headphone type

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Channel

Range

Frequency response of amplifier loaded dynamic headphone type @ 40 Hz - 15 kHz
Channel:LeftRight
HP 10000 Ω + ASUS K50IJ 0.00.0dB
Grado GH4 Limited Edition + ASUS K50IJ 4.23.9dB


Brief information

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



Frequency response ASUS K50IJ 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
HP 10000 Ω + ASUS K50IJ 0.00.0dB
Campfire Audio Andromeda + ASUS K50IJ 16.116.2dB
Fearless Audio S8F Freedom + ASUS K50IJ 10.29.5dB


Brief information

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



THD vs load vs output voltage ASUS K50IJ

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Channel

Load

Harmonic, number

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Channel

Load

Harmonic, number

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Channel

Load

Brief information

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



Maximum voltage output level vs load ASUS K50IJ

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Type of chart

RAW coordinates

Power characteristics of the Voltage Current
dBVVRMSdB(mA)mA
Equivalent class A -1.00.916.16.4
Equivalent class AB 1.01.126.320.5
Equivalent class B 1.01.126.320.5
Maximum mode 1.01.126.320.5


Volume Control TypeDigital
Optimal range of volume control36.0dB
Signal/Noise / Maximum106.0/1.0dB/dBV
Signal/Noise @ -14.9 dBV 32 ohm (1 mW)97.20dB
Signal/Noise @ -5.2 dBV 300 ohm (1 mW)100.91dB


Comparison ASUS K50IJ and another amplifiers by loudness (Volume Level)

Main characteristics of the ASUS K50IJ

Brief information

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



Maximum voltage output level vs load ASUS K50IJ

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