Measurement's report (16) AKG K 540 test and graphs (17) - Reference Audio Analyzer
AKG K 540



Reports (746) / AKG / K 540 / report for a pro (465)

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(430) AKG K 540 (report for a pro (465) )



Test report - general data (19) of AKG K 540 headphone (172)

Frequency response, Impedance, Frequency response with standard AMPs (20)


Graphics setting view (253)
Range, dB: (258)

Perception of headphone frequency response curves of equal loudness ISO 226-2009 (209)


General results (44)
General results (44) AKG K 540
Channel (37)
Center/Summary (38)
Sensitivity average in band from (171) 100 Hz to (290) 10 kHz, dB/V (284)
113,8
Impedance average in band from (283) 40 Hz to (290) 15 kHz, ohm (285)
37,9
For (286) 94,0 dB SPL need, VRMS (287)
0,103
For (286) 94,0 dB SPL need, mW (288)
0,279

The table shows a most important technical characteristics of (280) AKG K 540

*Center channel headphone is received by averaging between left and right channels (281)

*impedance value in the table for (282) Left (42) channel (30)



Test conditions (24)
  • Type of headphones (57) : Over-ear (56)
  • Measurements were performed on the stand: (89)
    • with on the simulator of human head with ears (94) HDM1
  • Headphone's impedance has been tested only with (29) Left (42) channel (30)



Sensitivity (98) of AKG K 540 headphone (172)


Graphics setting view (253)
Channel: (259)




Table of measured characteristics (820)
Sensitivity (316) AKG K 540
Channel (37)
Left (39)
Right (40)
Sensitivity average in band from (171) 100 Hz to (290) 10 kHz, dB/V (284)
113,6
113,9
Sensitivity at (252) 500 Hz at 1 V, dB (317)
112,3
111,6
Sensitivity at (252) 500 Hz at 1 mW, dB (318)
98,0
-бесконечность
Sensitivity at (252) 1000 Hz at 1 V, dB (317)
109,1
110,6
Sensitivity at (252) 1000 Hz at 1 mW, dB (318)
94,7
-бесконечность

The sensitivity was calculated by data from the measuring stand (319) HDM1


Frequency response (22) of AKG K 540 headphone (172)


Graphics setting view (253)
Range, dB: (258)
Channel: (259)




Table of measured characteristics (820)
Frequency response (22) AKG K 540
Channel (37)
Left (39)
Right (40)
Variation in frequency response in band from (251) 100 Hz to (290) 10 kHz, dB (289)
-6,99, 6,05
-5,82, 4,89

Impedance (23) of AKG K 540 headphone (172)





Table of measured characteristics (820)
Impedance (23) AKG K 540
Channel (37)
Left (39)
Impedance average in band from (283) 40 Hz to (290) 15 kHz, ohm (285)
37,9
Resistance at (320) 500 Hz, ohm (321)
36,7
Resistance at (320) 1000 Hz, ohm (321)
36,6
The minimum value in band from (322) 40 Hz to (290) 15 kHz at frequency, Hz (324)
4399,6
The minimum value in band from (322) 40 Hz to (290) 15 kHz, ohm (285)
36,6
The maximum value in band from (323) 40 Hz to (290) 15 kHz at frequency, Hz (324)
54,1
The maximum value in band from (323) 40 Hz to (290) 15 kHz, ohm (285)
40,4

Electric phase (100) of AKG K 540 headphone (172)


Graphics setting view (253)
Range, degree: (257)




Table of measured characteristics (820)
Electric phase (100) AKG K 540
Channel (37)
Left (39)
Average variation in phase response in band from (326) 20 Hz to (290) 20 kHz, degree (327)
3,0
The minimum value in band from (322) 20 Hz to (290) 20 kHz at frequency, Hz (324)
126,7
The minimum value in band from (322) 20 Hz to (290) 20 kHz, degree (327)
-2,6
The maximum value in band from (323) 20 Hz to (290) 20 kHz at frequency, Hz (324)
19713,6
The maximum value in band from (323) 20 Hz to (290) 20 kHz, degree (327)
21,7

Frequency response (22) of AKG K 540 headphone (172) when connected to amplifiers with constant output impedance (870)


Graphics setting view (253)
Range, dB: (258)
Channel: (259)




Table of measured characteristics (820)
Frequency response of headphone (350) AKG K 540 with amplifier with a constant impedance (351)
Channel (37)
Left (39)
Right (40)
Variation in FR from AMP (352) 0 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-6,99, +6,05
-5,82, +4,89
Variation in FR from AMP (352) 10 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-7,02, +6,08
-5,86, +4,95
Variation in FR from AMP (352) 20 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-7,04, +6,10
-5,88, +4,98
Variation in FR from AMP (352) 50 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-7,08, +6,13
-5,92, +5,05
Variation in FR from AMP (352) 100 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-7,11, +6,15
-5,95, +5,09
Variation in FR from AMP (352) 300 ohm in band (353) 100 Hz to (290) 10 kHz, dB (289)
-7,13, +6,17
-5,97, +5,14

The impedance was tested only (107) Left (42) channel data variance for (108) Right (43) channel generated by the data (109) Left (42) channel (30)



Deviation of frequency response (110) of AKG K 540 headphone (172) when connected to amplifiers with constant output impedance (870)


Graphics setting view (253)
Range, dB: (258)
Channel: (259)




Table of measured characteristics (820)
Variation in frequency response with amplifiers with constant output resistance (206) from (380) AKG K 540
Channel (37)
Center/Summary (38)
With amplifier impedance at (348) 10 ohm in band (353) 20 Hz to (290) 20 kHz, dB (289)
0,2
With amplifier impedance at (348) 20 ohm in band (353) 20 Hz to (290) 20 kHz, dB (289)
0,4
With amplifier impedance at (348) 50 ohm in band (353) 20 Hz to (290) 20 kHz, dB (289)
0,6
With amplifier impedance at (348) 100 ohm in band (353) 20 Hz to (290) 20 kHz, dB (289)
0,8
With amplifier impedance at (348) 300 ohm in band (353) 20 Hz to (290) 20 kHz, dB (289)
0,9

*Center channel is received by data averaging between the left and right channels (279)

The impedance was tested only (107) Left (42) channel data variance for (108) Right (43) channel generated by the data (109) Left (42) channel (30)



Frequency response (22) of AKG K 540 headphone (172) when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies (871)


Graphics setting view (253)
Range, dB: (258)
Channel: (259)




Table of measured characteristics (820)
Frequency response with an amplifier with zero output resistance and raising of output resistance in low frequencies (207) from (380) AKG K 540
Channel (37)
Left (39)
Right (40)
Variation in frequency response in band from (251) 100 Hz to (290) 10 kHz, dB (289)
-6,93, 6,12
-5,77, 4,96

The impedance was tested only (107) Left (42) channel data variance for (108) Right (43) channel generated by the data (109) Left (42) channel (30)



Deviation of frequency response (110) of AKG K 540 headphone (172) when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies (871)


Graphics setting view (253)
Range, dB: (258)
Channel: (259)




Table of measured characteristics (820)
Variance of frequency response (346) AKG K 540 depending on the total output resistance of the amplifier with zero resistance and a rise of resistance at low frequencies (356)
Variance frequency response at the frequency (357) 20 Hz, dB (358)
-4,4
Variance frequency response at the frequency (357) 40 Hz, dB (358)
-1,8
Variance frequency response at the frequency (357) 80 Hz, dB (358)
-0,7

The impedance was tested only (107) Left (42) channel data variance for (108) Right (43) channel generated by the data (109) Left (42) channel (30)



Perception of headphone frequency response curves of equal loudness ISO 226-2009 (209) of AKG K 540 headphone (172)


Graphics setting view (253)
Channel: (259)




Table of measured characteristics (820)
Perception of headphone frequency response curves of equal loudness ISO 226-2009 (209) from (380) AKG K 540
Channel (37)
Center/Summary (38)
From level (381) 48 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-8,9, +11,8
From level (381) 36 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-8,3, +8,7
From level (381) 24 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-7,6, +5,6
From level (381) 12 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-7,0, +5,0
From level (381) 0 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-6,4, +4,8
From level (381) -12 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-5,8, +5,2
From level (381) -24 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-6,4, +6,3
From level (381) -36 dB at (382) 72 dB SPL in band (383) 100 Hz to (290) 10 kHz, dB (289)
-9,1, +7,4

*Center channel is received by data averaging between the left and right channels (279)



On-line comparison and selection services for (769) AKG K 540

Comparison the frequency response (770) .
The (771) AKG K 540 was tested for a long time at the stands of the last generation and does not participate in comparison (772) . If possible, we will re-test the (773) AKG K 540 on modern stands (774) .
Compare the frequency response of a bundle of headphones and amplifiers (777) .
The (771) AKG K 540 was tested for a long time at the stands of the last generation and does not participate in comparison (772) . If possible, we will re-test the (773) AKG K 540 on modern stands (774) .

Compare the sensitivity and impedance (778) AKG K 540 versus other models (755) .

The automatic selection of the optimal AMP models (789) from (380) AKG K 540 from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use (795) .

Сравнение АЧХ и звукового давления AKG K 540 в зависимости от подаваемого напряжения и импеданса усилителя.


Измерения AKG K 540 проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Тест AKG K 540 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



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