Measurement's report xDuoo EP1 - Reference Audio Analyzer

Reports / xDuoo / EP1 - report for a pro

xDuoo EP1 (report for a pro)

Test report - general data xDuoo EP1 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 kHz131.8dB/V SPL
114.1dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz16.9ohm
For 90 dB SPL, a voltage is required-41.8dBV
0.008VRMS
Taking into account the peak factor of 9 dB for the music signal-32.8 dBV
0.023VRMS
Measurements were performed on the stand:SIEC






Frequency response and sensitivity headphones xDuoo EP1 headphone

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Channel

Frequency band

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz131.6 131.9dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz113.9114.3 dB/mW SPL
Sensitivity at 1 kHz126.8127.1dB/V SPL
Sensitivity at 500 Hz134.2135.1dB/mW SPL


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Frequency response of headphone xDuoo EP1 headphone

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Channel

Range

Frequency band

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -13.6, +6.7-14.0, +7.2dB


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Impedance xDuoo EP1 headphone

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Channel

Frequency band

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz16.8 17.1ohm
Resistance at 1 kHz16.8 17.0ohm
Resistance at 500 Hz16.9 17.1ohm
The minimum value in band from 40 Hz - 15 kHz16.5 16.7ohm
The maximum value in band from 40 Hz - 15 kHz17.5 17.5ohm


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Electric phase xDuoo EP1 headphone

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Channel

Range

Frequency band

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz1.7 1.7°
Phase at 1 kHz1.2 1.2°
Phase at 500 Hz0.7 0.6°
The minimum value in band from 40 Hz - 15 kHz0.3 0.4°
The maximum value in band from 40 Hz - 15 kHz8.4 8.4°




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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-11.7, +6.3 (18.0)-12.2, +4.8 (17.0)dB
Deviation -24.0 dB-12.7, +4.3 (17.0)-13.1, +4.5 (17.6)dB
Deviation -12.0 dB-13.7, +4.0 (17.7)-14.2, +4.6 (18.8)dB
Deviation 0.0 dB-14.8, +6.0 (20.8)-15.2, +6.5 (21.8)dB
Deviation 12.0 dB-15.9, +10.2 (26.1)-16.3, +10.7 (27.1)dB
Deviation 24.0 dB-17.0, +14.3 (31.4)-17.4, +14.9 (32.3)dB
Deviation 36.0 dB-18.1, +18.4 (36.6)-18.6, +19.0 (37.5)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-11.7, +6.3 (18.0)-12.2, +4.8 (17.0)dB
Deviation -24.0 dB-12.7, +4.3 (17.0)-13.1, +4.5 (17.6)dB
Deviation -12.0 dB-13.7, +4.0 (17.7)-14.2, +4.6 (18.8)dB
Deviation 0.0 dB-14.8, +6.0 (20.8)-15.2, +6.5 (21.8)dB
Deviation 12.0 dB-15.9, +10.2 (26.1)-16.3, +10.7 (27.1)dB
Deviation 24.0 dB-17.0, +14.3 (31.4)-17.4, +14.9 (32.3)dB
Deviation 36.0 dB-18.1, +18.4 (36.6)-18.6, +19.0 (37.5)dB


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Frequency response xDuoo EP1 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
xDuoo EP1 + AMP 0 Ω -8.9, +11.5-9.2, +12.0dB
xDuoo EP1 + AMP 10 Ω -8.9, +11.4-9.2, +12.0dB
xDuoo EP1 + AMP 20 Ω -8.9, +11.4-9.2, +12.0dB
xDuoo EP1 + AMP 50 Ω -8.9, +11.4-9.2, +11.9dB
xDuoo EP1 + AMP 100 Ω -8.9, +11.4-9.2, +11.9dB
xDuoo EP1 + AMP 300 Ω -8.9, +11.4-9.2, +11.9dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
xDuoo EP1 + AMP 0 Ω 0.00.0dB
xDuoo EP1 + AMP 10 Ω 0.20.1dB
xDuoo EP1 + AMP 20 Ω 0.20.2dB
xDuoo EP1 + AMP 50 Ω 0.30.3dB
xDuoo EP1 + AMP 100 Ω 0.40.3dB
xDuoo EP1 + AMP 300 Ω 0.40.3dB


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Frequency response xDuoo EP1 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
xDuoo EP1 + AMP 0 Ω -8.9, +11.5-9.2, +12.0dB
xDuoo EP1 + AMP ➘ 0 Ω -8.8, +10.4-9.2, +11.2dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
xDuoo EP1 + AMP 0 Ω 0.00.0dB
xDuoo EP1 + AMP ➘ 0 Ω 0.20.1dB


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Impulse response xDuoo EP1 headphone

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Channel

Duration for impulse, envelope and step responses

Waveforms

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Square wave xDuoo EP1 headphone

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