Measurement's report Beyerdynamic DT 990 Pro 250 ohm Default - Reference Audio Analyzer

Reports / Beyerdynamic / DT 990 Pro 250 ohm / Default - report for a pro

Beyerdynamic DT 990 Pro 250 ohm: Default (report for a pro)

Test report - general data Beyerdynamic DT 990 Pro 250 ohm headphone

Frequency response, Impedance, Frequency response with standard AMPs

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

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Sensitivity average in band from 100 Hz - 10 kHz99.1dB/V SPL
93.4dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz267.6ohm
For 90 dB SPL, a voltage is required-9.1dBV
0.349VRMS
Taking into account the peak factor of 9 dB for the music signal-0.1 dBV
0.984VRMS
Measurements were performed on the stand:HDM-X






Frequency response and sensitivity headphones Beyerdynamic DT 990 Pro 250 ohm Default headphone

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Channel

Frequency band

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz99.9 98.2dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz94.292.5 dB/mW SPL
Sensitivity at 1 kHz97.895.6dB/V SPL
Sensitivity at 500 Hz97.796.4dB/mW SPL


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Frequency response of headphone Beyerdynamic DT 990 Pro 250 ohm Default headphone

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Channel

Range

Frequency band

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -3.5, +10.5-5.2, +8.3dB


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Impedance Beyerdynamic DT 990 Pro 250 ohm Default headphone

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Channel

Frequency band

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz268.7 266.5ohm
Resistance at 1 kHz235.9 234.0ohm
Resistance at 500 Hz241.9 240.2ohm
The minimum value in band from 40 Hz - 15 kHz235.4 232.6ohm
The maximum value in band from 40 Hz - 15 kHz370.8 364.5ohm


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Electric phase Beyerdynamic DT 990 Pro 250 ohm Default headphone

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Channel

Range

Frequency band

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz-1.1 -1.2°
Phase at 1 kHz-2.2 -2.5°
Phase at 500 Hz-6.2 -6.3°
The minimum value in band from 40 Hz - 15 kHz-12.3 -12.8°
The maximum value in band from 40 Hz - 15 kHz12.0 12.0°




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

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Channel

Range

Variation in frequency response in band from 30 Hz - 12 kHz
Channel:LeftRight
Deviation -36.0 dB-11.9, +15.4 (27.3)-10.8, +12.9 (23.7)dB
Deviation -24.0 dB-7.7, +13.6 (21.3)-6.6, +11.0 (17.6)dB
Deviation -12.0 dB-3.5, +11.8 (15.2)-4.9, +9.2 (14.0)dB
Deviation 0.0 dB-4.1, +9.9 (14.1)-6.2, +7.4 (13.5)dB
Deviation 12.0 dB-5.4, +8.1 (13.6)-7.4, +6.5 (13.9)dB
Deviation 24.0 dB-6.7, +9.2 (15.9)-8.7, +10.3 (19.0)dB
Deviation 36.0 dB-7.9, +13.2 (21.1)-9.9, +14.3 (24.1)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-11.9, +15.4 (27.3)-10.8, +12.9 (23.7)dB
Deviation -24.0 dB-7.7, +13.6 (21.3)-6.6, +11.0 (17.6)dB
Deviation -12.0 dB-3.5, +11.8 (15.2)-4.9, +9.2 (14.0)dB
Deviation 0.0 dB-4.1, +9.9 (14.1)-6.2, +7.4 (13.5)dB
Deviation 12.0 dB-5.4, +8.1 (13.6)-7.4, +6.5 (13.9)dB
Deviation 24.0 dB-6.7, +9.2 (15.9)-8.7, +10.3 (19.0)dB
Deviation 36.0 dB-7.9, +13.2 (21.1)-9.9, +14.3 (24.1)dB


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Frequency response Beyerdynamic DT 990 Pro 250 ohm Default headphone when connected to amplifiers with constant output impedance

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Channel

Range

Frequency response

Frequency response of amplifier with constant output resistance 100 Hz - 10 kHz
Channel:LeftRight
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 0 Ω -1.4, +12.7-2.6, +10.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 10 Ω -1.4, +12.7-2.6, +10.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 20 Ω -1.4, +12.7-2.6, +10.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 50 Ω -1.4, +12.7-2.5, +10.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 100 Ω -1.4, +12.8-2.5, +11.0dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 300 Ω -1.3, +12.8-2.4, +11.0dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 0 Ω 0.00.0dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 10 Ω 0.10.1dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 20 Ω 0.20.2dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 50 Ω 0.50.5dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 100 Ω 0.90.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 300 Ω 1.71.7dB


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Frequency response Beyerdynamic DT 990 Pro 250 ohm Default headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 0 Ω -1.4, +12.7-2.6, +10.9dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP ➘ 0 Ω -1.4, +12.7-2.6, +10.9dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
Beyerdynamic DT 990 Pro 250 ohm Default + AMP 0 Ω 0.00.0dB
Beyerdynamic DT 990 Pro 250 ohm Default + AMP ➘ 0 Ω 0.10.1dB


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Impulse response Beyerdynamic DT 990 Pro 250 ohm Default headphone

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Channel

Duration for impulse, envelope and step responses

Waveforms

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Square wave Beyerdynamic DT 990 Pro 250 ohm Default headphone

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