Measurement's report Beyerdynamic DT 770 PRO 80 ohm test and graphs - Reference Audio Analyzer
Beyerdynamic DT 770 PRO 80 ohm



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Beyerdynamic DT 770 PRO 80 ohm (report for a pro)



Test report - general data of Beyerdynamic DT 770 PRO 80 ohm headphone

Frequency response, Impedance, Frequency response with standard AMPs


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

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


General results
General results Beyerdynamic DT 770 PRO 80 ohm
Channel
Center/Summary
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
106,6
Impedance average in band from 40 Hz to 15 kHz, ohm
93,4
For 94,0 dB SPL need, VRMS
0,235
For 94,0 dB SPL need, mW
0,592

The table shows a most important technical characteristics of Beyerdynamic DT 770 PRO 80 ohm

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



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



Sensitivity of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Frequency band, Hz:
Channel:




Table of measured characteristics
Sensitivity Beyerdynamic DT 770 PRO 80 ohm
Channel
Left
Right
Sensitivity average in band from 100 Hz to 10 kHz, dB/V
105,8
107,2
Sensitivity at 500 Hz at 1 V, dB
104,3
106,7
Sensitivity at 500 Hz at 1 mW, dB
93,7
96,2
Sensitivity at 1000 Hz at 1 V, dB
104,6
107,0
Sensitivity at 1000 Hz at 1 mW, dB
93,9
96,3

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


Frequency response of Beyerdynamic DT 770 PRO 80 ohm headphone


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




Table of measured characteristics
Frequency response Beyerdynamic DT 770 PRO 80 ohm
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-6,86, 10,53
-6,37, 6,58

Impedance of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Frequency band, Hz:
Channel:




Table of measured characteristics
Impedance Beyerdynamic DT 770 PRO 80 ohm
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, ohm
93,2
93,5
Resistance at 500 Hz, ohm
88,6
88,8
Resistance at 1000 Hz, ohm
85,7
85,9
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
1681,6
1740,6
The minimum value in band from 40 Hz to 15 kHz, ohm
85,3
85,4
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
90,0
90,0
The maximum value in band from 40 Hz to 15 kHz, ohm
108,4
109,3

Electric phase of Beyerdynamic DT 770 PRO 80 ohm headphone


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




Table of measured characteristics
Electric phase Beyerdynamic DT 770 PRO 80 ohm
Channel
Left
Right
Average variation in phase response in band from 20 Hz to 20 kHz, degree
3,4
3,3
The minimum value in band from 20 Hz to 20 kHz at frequency, Hz
252,9
240,2
The minimum value in band from 20 Hz to 20 kHz, degree
-6,1
-6,1
The maximum value in band from 20 Hz to 20 kHz at frequency, Hz
19741,4
19741,4
The maximum value in band from 20 Hz to 20 kHz, degree
22,8
22,6

Frequency response of Beyerdynamic DT 770 PRO 80 ohm 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 Beyerdynamic DT 770 PRO 80 ohm with amplifier with a constant impedance
Channel
Left
Right
Variation in FR from AMP 0 ohm in band 100 Hz to 10 kHz, dB
-6,86, +10,53
-6,37, +6,58
Variation in FR from AMP 10 ohm in band 100 Hz to 10 kHz, dB
-6,90, +10,52
-6,36, +6,58
Variation in FR from AMP 20 ohm in band 100 Hz to 10 kHz, dB
-6,93, +10,52
-6,35, +6,57
Variation in FR from AMP 50 ohm in band 100 Hz to 10 kHz, dB
-6,99, +10,51
-6,34, +6,56
Variation in FR from AMP 100 ohm in band 100 Hz to 10 kHz, dB
-7,05, +10,50
-6,33, +6,55
Variation in FR from AMP 300 ohm in band 100 Hz to 10 kHz, dB
-7,14, +10,48
-6,31, +6,53

Deviation of frequency response of Beyerdynamic DT 770 PRO 80 ohm 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 Beyerdynamic DT 770 PRO 80 ohm
Channel
Center/Summary
With amplifier impedance at 10 ohm in band 20 Hz to 20 kHz, dB
0,2
With amplifier impedance at 20 ohm in band 20 Hz to 20 kHz, dB
0,4
With amplifier impedance at 50 ohm in band 20 Hz to 20 kHz, dB
0,7
With amplifier impedance at 100 ohm in band 20 Hz to 20 kHz, dB
1,1
With amplifier impedance at 300 ohm in band 20 Hz to 20 kHz, dB
1,6

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


Frequency response of Beyerdynamic DT 770 PRO 80 ohm 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 Beyerdynamic DT 770 PRO 80 ohm
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-6,83, 10,56
-6,34, 6,61

Deviation of frequency response of Beyerdynamic DT 770 PRO 80 ohm 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 Beyerdynamic DT 770 PRO 80 ohm 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
-2,2
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 Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Channel:




Table of measured characteristics
Perception of headphone frequency response curves of equal loudness ISO 226-2009 from Beyerdynamic DT 770 PRO 80 ohm
Channel
Center/Summary
From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-10,1, +13,9
From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-9,0, +10,8
From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-7,9, +7,7
From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-6,8, +7,6
From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,7, +8,6
From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-5,9, +9,5
From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-7,4, +10,5
From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
-8,8, +11,4

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


Impulse response of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Time, ms:
Channel:



Impulse Response Envelope (ETC - Energy Time Curve) of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Time, ms:
Range, dB:
Channel:



Step response of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Time, ms:
Channel:



QSD / Watterfall of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Frequency band, Hz:
Channel:



Delta QSD / Delta Watterfall of Beyerdynamic DT 770 PRO 80 ohm headphone


Graphics setting view
Frequency band, Hz:
Channel:






On-line comparison and selection services for Beyerdynamic DT 770 PRO 80 ohm

Comparison the frequency response Beyerdynamic DT 770 PRO 80 ohm versus other models

Compare the sensitivity and impedance Beyerdynamic DT 770 PRO 80 ohm versus other models.

The automatic selection of the optimal AMP models from Beyerdynamic DT 770 PRO 80 ohm from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.

Сравнение АЧХ и звукового давления Beyerdynamic DT 770 PRO 80 ohm в зависимости от подаваемого напряжения и импеданса усилителя.


Измерения Beyerdynamic DT 770 PRO 80 ohm проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Тест Beyerdynamic DT 770 PRO 80 ohm проведен как черного ящика, без учета стоимости и престижа. Это главный принцип измерений и разработки тестов в RAA.

Считаю, что важно делать не абсолютную оценку устройства, а совокупную оценку при совместной работе с усилителем источника и учетом внешних факторов. Это позволяет эффективно раскрывать потенциал всей связки устройств или делать более оптимальный подбор компонентов.




Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com



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