Measurement's report AKG K 272 HD test and graphs - Reference Audio Analyzer

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AKG K 272 HD (report for a pro)



Test report - general data of AKG K 272 HD headphone

Frequency response, Impedance, Frequency response with standard AMPs


Graphics setting view
Range, dB:

Perception of headphone frequency response curves of equal loudness ISO 226-2009


General results
General results AKG K 272 HD
Channel
Center/Summary
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
94,5
Impedance average in band from 40 Hz to 15 kHz, ohm
74,2
For 94,0 dB SPL need, VRMS
0,949
For 94,0 dB SPL need, mW
12,129

The table shows a most important technical characteristics of AKG K 272 HD

*Center channel headphone is received by averaging between left and right channels

*impedance value in the table for Left channel



Test conditions
  • Type of headphones: Over-ear
  • Measurements were performed on the stand:
    • with on the simulator of human head with ears HDM1
  • Headphone's impedance has been tested only with Left channel



Sensitivity of AKG K 272 HD headphone


Graphics setting view
Channel:




Table of measured characteristics
Sensitivity AKG K 272 HD
Channel
Left
Right
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
93,5
95,3
Sensitivity at 500 Hz at 1 V, dB
95,9
97,4
Sensitivity at 500 Hz at 1 mW, dB
84,0
-бесконечность
Sensitivity at 1000 Hz at 1 V, dB
93,2
95,1
Sensitivity at 1000 Hz at 1 mW, dB
80,9
-бесконечность

The sensitivity was calculated by data from the measuring stand HDM1


Frequency response of AKG K 272 HD headphone


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response AKG K 272 HD
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-5,86, 9,12
-6,83, 6,58

Impedance of AKG K 272 HD headphone





Table of measured characteristics
Impedance AKG K 272 HD
Channel
Left
Impedance average in band from 40 Hz to 15 kHz, ohm
74,2
Resistance at 500 Hz, ohm
65,3
Resistance at 1000 Hz, ohm
58,6
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
1356,2
The minimum value in band from 40 Hz to 15 kHz, ohm
58,1
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
130,8
The maximum value in band from 40 Hz to 15 kHz, ohm
105,1

Electric phase of AKG K 272 HD headphone


Graphics setting view
Range, degree:




Table of measured characteristics
Electric phase AKG K 272 HD
Channel
Left
Average variation in phase response in band from 20 Hz to 20 kHz, degree
7,8
The minimum value in band from 20 Hz to 20 kHz at frequency, Hz
310,7
The minimum value in band from 20 Hz to 20 kHz, degree
-16,2
The maximum value in band from 20 Hz to 20 kHz at frequency, Hz
19682,2
The maximum value in band from 20 Hz to 20 kHz, degree
41,2

Frequency response of AKG K 272 HD headphone when connected to amplifiers with constant output impedance


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response of headphone AKG K 272 HD with amplifier with a constant impedance
Channel
Left
Right
Variation in FR from AMP 0 ohm in band 100 Hz to 10 kHz, dB
-5,86, +9,12
-6,83, +6,58
Variation in FR from AMP 10 ohm in band 100 Hz to 10 kHz, dB
-5,92, +9,21
-6,91, +6,59
Variation in FR from AMP 20 ohm in band 100 Hz to 10 kHz, dB
-5,97, +9,27
-6,97, +6,59
Variation in FR from AMP 50 ohm in band 100 Hz to 10 kHz, dB
-6,08, +9,40
-7,09, +6,66
Variation in FR from AMP 100 ohm in band 100 Hz to 10 kHz, dB
-6,19, +9,51
-7,21, +6,76
Variation in FR from AMP 300 ohm in band 100 Hz to 10 kHz, dB
-6,35, +9,63
-7,38, +6,89

The impedance was tested only Left channel data variance for Right channel generated by the data Left channel



Deviation of frequency response of AKG K 272 HD headphone when connected to amplifiers with constant output impedance


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Variation in frequency response with amplifiers with constant output resistance from AKG K 272 HD
Channel
Center/Summary
With amplifier impedance at 10 ohm in band 20 Hz to 20 kHz, dB
0,6
With amplifier impedance at 20 ohm in band 20 Hz to 20 kHz, dB
1,1
With amplifier impedance at 50 ohm in band 20 Hz to 20 kHz, dB
2,0
With amplifier impedance at 100 ohm in band 20 Hz to 20 kHz, dB
2,9
With amplifier impedance at 300 ohm in band 20 Hz to 20 kHz, dB
4,1

*Center channel is received by data averaging between the left and right channels

The impedance was tested only Left channel data variance for Right channel generated by the data Left channel



Frequency response of AKG K 272 HD headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response with an amplifier with zero output resistance and raising of output resistance in low frequencies from AKG K 272 HD
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-5,89, 9,15
-6,80, 6,61

The impedance was tested only Left channel data variance for Right channel generated by the data Left channel



Deviation of frequency response of AKG K 272 HD headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Variance of frequency response AKG K 272 HD depending on the total output resistance of the amplifier with zero resistance and a rise of resistance at low frequencies
Variance frequency response at the frequency 20 Hz, dB
-3,1
Variance frequency response at the frequency 40 Hz, dB
-1,1
Variance frequency response at the frequency 80 Hz, dB
-0,3

The impedance was tested only Left channel data variance for Right channel generated by the data Left channel



Perception of headphone frequency response curves of equal loudness ISO 226-2009 of AKG K 272 HD headphone


Graphics setting view
Channel:




Table of measured characteristics
Perception of headphone frequency response curves of equal loudness ISO 226-2009 from AKG K 272 HD
Channel
Center/Summary
From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-10,6, +8,3
From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-9,5, +8,1
From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-8,4, +8,0
From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-7,4, +7,8
From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-6,3, +7,7
From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-7,8, +7,6
From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-10,7, +7,7
From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,4, +8,2

*Center channel is received by data averaging between the left and right channels



On-line comparison and selection services for AKG K 272 HD

Compare the sensitivity and impedance AKG K 272 HD versus other models.

The automatic selection of the optimal AMP models from AKG K 272 HD from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.





Измерения AKG K 272 HD проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Тест AKG K 272 HD проведен как черного ящика, без учета стоимости и престижа. Это главный принцип измерений и разработки тестов в RAA.



Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com




AKG K 272 HD is available in reports and services. You are in a professional report.

Service and suite of tests

Information for all

Comparison of on-line graphs

Information for professionals

report for a pro

Comparison of on-line graphs






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