Measurement's report Shure SRH 1840 - Reference Audio Analyzer

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Shure SRH 1840 (report for a pro)



Test report - general data Shure SRH 1840 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 kHz104.1dB/V SPL
92.4dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz67.4ohm
For 90 dB SPL, a voltage is required-14.1dBV
0.196VRMS
Taking into account the peak factor of 9 dB for the music signal-5.1 dBV
0.554VRMS
Measurements were performed on the stand:HDM1 , SF1




We tested Shure SRH 1840 in 2010~2014 on older HDM1 stand. Now all headphones of this type test on modern HDM-X stand. Frequency response in this report in not precision and it don't compare with frequency response another headphones, which test on HDM-X stand. If possible, we’ll retest those headphones. You can give us Shure SRH 1840 and we test its again and will refresh this report.



Frequency response and sensitivity headphones Shure SRH 1840 headphone

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Channel

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz103.0 105.0dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz91.393.3 dB/mW SPL
Sensitivity at 1 kHz101.8103.5dB/V SPL
Sensitivity at 500 Hz101.3103.0dB/mW SPL


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Frequency response of headphone Shure SRH 1840 headphone

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Channel

Range

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -7.8, +4.0-6.0, +3.0dB


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Impedance Shure SRH 1840 headphone

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz67.5 67.2ohm
Resistance at 1 kHz65.4 65.1ohm
Resistance at 500 Hz66.1 66.0ohm
The minimum value in band from 40 Hz - 15 kHz64.5 64.3ohm
The maximum value in band from 40 Hz - 15 kHz72.4 71.8ohm


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Electric phase Shure SRH 1840 headphone

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Channel

Range

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz2.7 2.8degree
Phase at 1 kHz0.2 0.0degree
Phase at 500 Hz-1.2 -1.4degree
The minimum value in band from 40 Hz - 15 kHz-2.3 -2.2degree
The maximum value in band from 40 Hz - 15 kHz17.8 18.0degree




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Clicking on the graph will take you to the comparison page of different headphone models with advanced graph display settings.



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-16.8, +7.6 (24.3)-17.5, +8.3 (25.7)dB
Deviation -24.0 dB-12.5, +5.8 (18.3)-13.3, +6.9 (20.1)dB
Deviation -12.0 dB-8.3, +4.4 (12.8)-9.0, +5.6 (14.6)dB
Deviation 0.0 dB-4.1, +3.1 (7.3)-4.9, +4.3 (9.1)dB
Deviation 12.0 dB-3.3, +4.2 (7.5)-3.2, +3.7 (6.9)dB
Deviation 24.0 dB-5.2, +6.7 (11.9)-5.0, +6.2 (11.3)dB
Deviation 36.0 dB-7.1, +9.4 (16.5)-6.9, +8.9 (15.8)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-16.8, +7.6 (24.3)-17.5, +8.3 (25.7)dB
Deviation -24.0 dB-12.5, +5.8 (18.3)-13.3, +6.9 (20.1)dB
Deviation -12.0 dB-8.3, +4.4 (12.8)-9.0, +5.6 (14.6)dB
Deviation 0.0 dB-4.1, +3.1 (7.3)-4.9, +4.3 (9.1)dB
Deviation 12.0 dB-3.3, +4.2 (7.5)-3.2, +3.7 (6.9)dB
Deviation 24.0 dB-5.2, +6.7 (11.9)-5.0, +6.2 (11.3)dB
Deviation 36.0 dB-7.1, +9.4 (16.5)-6.9, +8.9 (15.8)dB


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Frequency response Shure SRH 1840 headphone when connected to amplifiers with constant output impedance

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
0.1 ohm @ Shure SRH 1840 + Topping EX5 Hi Gain -6.6, +5.2-4.4, +4.5dB
10.1 ohm @ Shure SRH 1840 + ASUS Essence One -6.6, +5.2-4.4, +4.6dB
22.1 ohm @ Shure SRH 1840 + E-MU 1616m -6.6, +5.2-4.4, +4.6dB
50.0 ohm @ Shure SRH 1840 + Behringer MicroAmp Ha400 -10.3, +2.4-8.0, +1.6dB
98.7 ohm @ Shure SRH 1840 + ASUS STRIX RAID PRO Hi -6.6, +5.2-4.4, +4.6dB
298.5 ohm @ Shure SRH 1840 + Gigabyte GA-A75-UD4H Realtek ALC889A -6.5, +5.2-4.3, +4.8dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
0.1 ~ 0 ohm @ Shure SRH 1840 + Topping EX5 Hi Gain 0.00.0dB
10.1 ~ 0 ohm @ Shure SRH 1840 + ASUS Essence One 1.41.4dB
22.1 ~ 0 ohm @ Shure SRH 1840 + E-MU 1616m 2.82.8dB
50.0 ~ 0 ohm @ Shure SRH 1840 + Behringer MicroAmp Ha400 4.84.8dB
98.7 ~ 0 ohm @ Shure SRH 1840 + ASUS STRIX RAID PRO Hi 8.68.6dB
298.5 ~ 0 ohm @ Shure SRH 1840 + Gigabyte GA-A75-UD4H Realtek ALC889A 15.715.7dB


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Frequency response Shure SRH 1840 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
Shure SRH 1840 + Topping EX5 Hi Gain -6.6, +5.2-4.4, +4.5dB
Shure SRH 1840 + Colorful Colorfly C4 Pro Jack 6.3 -6.6, +5.2-4.4, +4.5dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
Shure SRH 1840 + Topping EX5 Hi Gain 0.00.0dB
Shure SRH 1840 + Colorful Colorfly C4 Pro Jack 6.3 1.41.4dB


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Measurements of Shure SRH 1840 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Shure SRH 1840 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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