Measurement's report Westone UM Pro 10 - Reference Audio Analyzer

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Westone UM Pro 10 (report for a pro)

Test report - general data Westone UM Pro 10 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 kHz129.2dB/V SPL
113.7dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz28.5ohm
For 90 dB SPL, a voltage is required-39.2dBV
0.011VRMS
Taking into account the peak factor of 9 dB for the music signal-30.2 dBV
0.031VRMS
Measurements were performed on the stand:SIEC






Frequency response and sensitivity headphones Westone UM Pro 10 headphone

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Channel

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz129.2 129.1dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz113.8113.7 dB/mW SPL
Sensitivity at 1 kHz130.6130.6dB/V SPL
Sensitivity at 500 Hz132.0132.0dB/mW SPL


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Frequency response of headphone Westone UM Pro 10 headphone

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Channel

Range

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -15.0, +3.7-15.6, +4.2dB


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Impedance Westone UM Pro 10 headphone

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz28.7 28.4ohm
Resistance at 1 kHz22.1 21.8ohm
Resistance at 500 Hz16.2 16.2ohm
The minimum value in band from 40 Hz - 15 kHz13.7 13.7ohm
The maximum value in band from 40 Hz - 15 kHz96.1 95.1ohm


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Electric phase Westone UM Pro 10 headphone

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Channel

Range

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz29.4 29.2°
Phase at 1 kHz39.7 39.1°
Phase at 500 Hz26.0 25.5°
The minimum value in band from 40 Hz - 15 kHz2.7 2.5°
The maximum value in band from 40 Hz - 15 kHz64.5 64.9°




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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-12.8, +8.2 (21.1)-12.1, +7.9 (20.1)dB
Deviation -24.0 dB-12.6, +6.3 (18.8)-13.3, +6.0 (19.3)dB
Deviation -12.0 dB-13.6, +4.3 (17.9)-14.7, +4.1 (18.8)dB
Deviation 0.0 dB-15.2, +3.5 (18.6)-16.2, +3.9 (20.1)dB
Deviation 12.0 dB-16.7, +6.2 (23.0)-17.6, +7.7 (25.3)dB
Deviation 24.0 dB-18.3, +9.7 (28.0)-19.0, +11.9 (30.9)dB
Deviation 36.0 dB-19.7, +13.4 (33.1)-20.4, +16.0 (36.4)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-12.8, +8.2 (21.1)-12.1, +7.9 (20.1)dB
Deviation -24.0 dB-12.6, +6.3 (18.8)-13.3, +6.0 (19.3)dB
Deviation -12.0 dB-13.6, +4.3 (17.9)-14.7, +4.1 (18.8)dB
Deviation 0.0 dB-15.2, +3.5 (18.6)-16.2, +3.9 (20.1)dB
Deviation 12.0 dB-16.7, +6.2 (23.0)-17.6, +7.7 (25.3)dB
Deviation 24.0 dB-18.3, +9.7 (28.0)-19.0, +11.9 (30.9)dB
Deviation 36.0 dB-19.7, +13.4 (33.1)-20.4, +16.0 (36.4)dB


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Frequency response Westone UM Pro 10 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
Westone UM Pro 10 + AMP 0 Ω -16.3, +2.3-17.1, +2.8dB
Westone UM Pro 10 + AMP 10 Ω -14.7, +2.4-15.3, +2.4dB
Westone UM Pro 10 + AMP 20 Ω -13.7, +3.0-14.2, +3.0dB
Westone UM Pro 10 + AMP 50 Ω -12.1, +4.0-12.6, +4.0dB
Westone UM Pro 10 + AMP 100 Ω -11.1, +4.6-11.5, +4.5dB
Westone UM Pro 10 + AMP 300 Ω -10.1, +5.1-10.4, +5.1dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
Westone UM Pro 10 + AMP 0 Ω 0.00.0dB
Westone UM Pro 10 + AMP 10 Ω 3.53.5dB
Westone UM Pro 10 + AMP 20 Ω 5.55.5dB
Westone UM Pro 10 + AMP 50 Ω 8.58.4dB
Westone UM Pro 10 + AMP 100 Ω 10.510.4dB
Westone UM Pro 10 + AMP 300 Ω 12.512.4dB


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Frequency response Westone UM Pro 10 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
Westone UM Pro 10 + AMP 0 Ω -16.3, +2.3-17.1, +2.8dB
Westone UM Pro 10 + AMP ➘ 0 Ω -16.3, +1.8-17.0, +1.8dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
Westone UM Pro 10 + AMP 0 Ω 0.00.0dB
Westone UM Pro 10 + AMP ➘ 0 Ω 3.53.5dB


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Close

Measurements of Westone UM Pro 10 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Westone UM Pro 10 test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.

I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a source amplifier and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com



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