Measurement's report Yamaha HPH-PRO 300 test and graphs - Reference Audio Analyzer

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Yamaha HPH-PRO 300 (report for a pro)



Test report - general data of Yamaha HPH-PRO 300 headphone

Frequency response, Impedance, Frequency response with standard AMPs


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Frequency band, Hz:
Range, dB:

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


General results
General results Yamaha HPH-PRO 300
Channel
Center/Summary
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
119,9
Impedance average in band from 40 Hz to 15 kHz, ohm
69,0
For 94,0 dB SPL need, VRMS
0,051
For 94,0 dB SPL need, mW
0,037

The table shows a most important technical characteristics of Yamaha HPH-PRO 300

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



Test conditions
  • Type of headphones: On-ear
  • Measurements were performed on the stand:
    • with on the simulator of human head with ears HDM-X with natural acoustic damping



Sensitivity of Yamaha HPH-PRO 300 headphone


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Frequency band, Hz:
Channel:




Table of measured characteristics
Sensitivity Yamaha HPH-PRO 300
Channel
Left
Right
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
121,1
118,4
Sensitivity at 500 Hz at 1 V, dB
121,8
118,4
Sensitivity at 500 Hz at 1 mW, dB
109,3
106,1
Sensitivity at 1000 Hz at 1 V, dB
123,6
120,8
Sensitivity at 1000 Hz at 1 mW, dB
110,9
108,1

The sensitivity was calculated by data from the measuring stand HDM-X


Frequency response of Yamaha HPH-PRO 300 headphone


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:




Table of measured characteristics
Frequency response Yamaha HPH-PRO 300
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-17,81, 5,21
-9,17, 4,28

Impedance of Yamaha HPH-PRO 300 headphone


Graphics setting view
Frequency band, Hz:
Channel:




Table of measured characteristics
Impedance Yamaha HPH-PRO 300
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, ohm
67,9
70,2
Resistance at 500 Hz, ohm
56,4
58,4
Resistance at 1000 Hz, ohm
53,4
53,6
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
2918,0
2868,2
The minimum value in band from 40 Hz to 15 kHz, ohm
51,5
52,9
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
64,9
55,5
The maximum value in band from 40 Hz to 15 kHz, ohm
145,4
149,7

Electric phase of Yamaha HPH-PRO 300 headphone


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Frequency band, Hz:
Range, degree:
Channel:




Table of measured characteristics
Electric phase Yamaha HPH-PRO 300
Channel
Left
Right
Average variation in phase response in band from 20 Hz to 20 kHz, degree
2,5
1,3
The minimum value in band from 20 Hz to 20 kHz at frequency, Hz
131,4
108,7
The minimum value in band from 20 Hz to 20 kHz, degree
-22,4
-22,5
The maximum value in band from 20 Hz to 20 kHz at frequency, Hz
37,4
34,9
The maximum value in band from 20 Hz to 20 kHz, degree
33,6
33,9

Frequency response of Yamaha HPH-PRO 300 headphone when connected to amplifiers with constant output impedance


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:




Table of measured characteristics
Frequency response of headphone Yamaha HPH-PRO 300 with amplifier with a constant impedance
Channel
Left
Right
Variation in FR from AMP 0 ohm in band 100 Hz to 10 kHz, dB
-17,81, +5,21
-9,17, +4,28
Variation in FR from AMP 10 ohm in band 100 Hz to 10 kHz, dB
-17,91, +5,09
-9,27, +4,19
Variation in FR from AMP 20 ohm in band 100 Hz to 10 kHz, dB
-17,98, +5,01
-9,35, +4,27
Variation in FR from AMP 50 ohm in band 100 Hz to 10 kHz, dB
-18,12, +4,84
-9,51, +4,57
Variation in FR from AMP 100 ohm in band 100 Hz to 10 kHz, dB
-18,25, +4,70
-9,64, +4,83
Variation in FR from AMP 300 ohm in band 100 Hz to 10 kHz, dB
-18,40, +4,52
-9,81, +5,14

Deviation of frequency response of Yamaha HPH-PRO 300 headphone when connected to amplifiers with constant output impedance


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:




Table of measured characteristics
Variation in frequency response with amplifiers with constant output resistance from Yamaha HPH-PRO 300
Channel
Center/Summary
With amplifier impedance at 10 ohm in band 20 Hz to 20 kHz, dB
0,9
With amplifier impedance at 20 ohm in band 20 Hz to 20 kHz, dB
1,7
With amplifier impedance at 50 ohm in band 20 Hz to 20 kHz, dB
3,2
With amplifier impedance at 100 ohm in band 20 Hz to 20 kHz, dB
4,7
With amplifier impedance at 300 ohm in band 20 Hz to 20 kHz, dB
6,7

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


Frequency response of Yamaha HPH-PRO 300 headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


Graphics setting view
Frequency band, Hz:
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 Yamaha HPH-PRO 300
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-17,78, 5,24
-9,13, 4,31

Deviation of frequency response of Yamaha HPH-PRO 300 headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:




Table of measured characteristics
Variance of frequency response Yamaha HPH-PRO 300 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
-3,2
Variance frequency response at the frequency 40 Hz, dB
-0,8
Variance frequency response at the frequency 80 Hz, dB
-0,2

Perception of headphone frequency response curves of equal loudness ISO 226-2009 of Yamaha HPH-PRO 300 headphone


Graphics setting view
Channel:




Table of measured characteristics
Perception of headphone frequency response curves of equal loudness ISO 226-2009 from Yamaha HPH-PRO 300
Channel
Center/Summary
From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,3, +11,7
From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,2, +8,6
From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,2, +6,8
From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,1, +5,0
From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-13,0, +4,7
From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-12,9, +5,8
From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-12,8, +6,8
From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-12,7, +7,7

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


Impulse response of Yamaha HPH-PRO 300 headphone


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Time, ms:
Channel:



Impulse Response Envelope (ETC - Energy Time Curve) of Yamaha HPH-PRO 300 headphone


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Time, ms:
Range, dB:
Channel:



Step response of Yamaha HPH-PRO 300 headphone


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Time, ms:
Channel:





Square wave of Yamaha HPH-PRO 300 headphone

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