Measurement's report Koss ESP 950 Leather cushions test and graphs - Reference Audio Analyzer

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Koss ESP 950: Leather cushions (report for a pro)



Test report - general data of Koss ESP 950 Leather cushions headphone

Frequency response


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


General results
General results Koss ESP 950 Leather cushions
Channel
Center/Summary
Variation in frequency response in band from 100 Hz to 0,01 kHz, dB
-5,44, 3,49

The table shows a most important technical characteristics of Koss ESP 950 Leather cushions

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

*impedance value in the table for channel



Test conditions
  • Type of headphones: Over-ear
  • Measurements were performed on the stand:
    • with on the simulator of human head with ears HDM-X with natural acoustic damping
  • Headphone's impedance has not been tested
    • The model use internal headphone amplifier
    • Can be used only with special AMP
    • By other reason



Frequency response of Koss ESP 950 Leather cushions headphone


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Frequency band, Hz:
Range, dB:
Channel:




Table of measured characteristics
Frequency response Koss ESP 950 Leather cushions
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-6,88, 3,97
-4,24, 3,05

Perception of headphone frequency response curves of equal loudness ISO 226-2009 of Koss ESP 950 Leather cushions headphone


Graphics setting view
Channel:




Table of measured characteristics
Perception of headphone frequency response curves of equal loudness ISO 226-2009 from Koss ESP 950 Leather cushions
Channel
Center/Summary
From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-6,6, +11,9
From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-6,3, +8,8
From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,9, +5,7
From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,6, +2,7
From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,4, +3,5
From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,4, +4,4
From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-6,3, +5,3
From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-9,0, +6,1

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


Impulse response of Koss ESP 950 Leather cushions headphone


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Impulse Response Envelope (ETC - Energy Time Curve) of Koss ESP 950 Leather cushions headphone


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Step response of Koss ESP 950 Leather cushions headphone


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Square wave of Koss ESP 950 Leather cushions headphone

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