Measurement's report xDuoo x10 Low test and graphs - Reference Audio Analyzer
xDuoo x10
Headphone amplifierHi
Low
Headphone amplifierHi
Low
DAC Line OutDSD
Sharp
Slow



Reports / xDuoo / x10 / Low / Amplifier path / report for a pro

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Test report xDuoo x10: Low (report for a pro)






Test report - general data of xDuoo x10 Low as AMP mode

Frequency response, Impedance and Frequency response with standard headphones


Graphics setting view
Range, dB:

The maximum level of voltage from the musical power

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General results
General results
xDuoo x10 Low
Channel
Center/Summary
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,28, 0,03
Average value of impedance band in 40 Hz to 15 kHz, ohm
0,1
Max voltage output
VRMS
dBV
Clear or equal class AF.A.Q.
1,65
4,37
Optimal or equal class ABF.A.Q.
2,07
6,31
Hard or equal class BF.A.Q.
2,07
6,31
Max, before clippingF.A.Q.
2,34
7,37
Maximum current output at loaded
ohm
mA
Clear or equal class AF.A.Q.
30,5
38,17
Optimal or equal class ABF.A.Q.
15,8
92,35
Hard or equal class BF.A.Q.
15,8
92,35
Max, before clippingF.A.Q.
15,8
92,35
Max power output
ohm
mW
dBm
Clear or equal class AF.A.Q.
30,5
44,44
16,48
Optimal or equal class ABF.A.Q.
24,5
174,46
22,42
Hard or equal class BF.A.Q.
24,5
174,46
22,42
Max, before clippingF.A.Q.
30,5
176,79
22,47

The table shows a most important technical characteristics of xDuoo x10 Low

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



Test conditions



Frequency response of xDuoo x10 Low as AMP mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response xDuoo x10 Low
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,12, 0,02
-0,12, 0,02

Impedance of xDuoo x10 Low as AMP mode


Graphics setting view
Channel:




Table of measured characteristics
Impedance xDuoo x10 Low
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, ohm
0,1
0,1
Resistance at 500 Hz, ohm
0,1
0,1
Resistance at 1000 Hz, ohm
0,1
0,1
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
60,7
93,3
The minimum value in band from 40 Hz to 15 kHz, ohm
0,1
0,1
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
14028,9
14028,9
The maximum value in band from 40 Hz to 15 kHz, ohm
0,1
0,1

Crosstalk of xDuoo x10 Low as AMP mode


Graphics setting view
Range, dB:
Channel:
Load, ohm:




Table of measured characteristics

Frequency response of xDuoo x10 Low with loaded resistors as AMP mode


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Range, dB:
Channel:




Table of measured characteristics
Frequency response of amplifier headphone amplifier xDuoo x10 Low
with resistive load
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 32 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 50 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 100 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 250 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 600 ohm, dB
0,00

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


Frequency response of xDuoo x10 Low loaded dynamic headphone type as AMP mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response of the headphone amplifier xDuoo x10 Low
loaded dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,36

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


Deviation of frequency response of xDuoo x10 Low loaded dynamic headphone type as AMP mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response of amplifier xDuoo x10 Low
loaded dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,01

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


Frequency response of xDuoo x10 Low loaded type balance armature headphone type (one driver) as AMP mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response of amplifier xDuoo x10 Low
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,33

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


Deviation of frequency response of xDuoo x10 Low loaded type balance armature headphone type (one driver) as AMP mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Frequency response of amplifier xDuoo x10 Low
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,05

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




Maximum voltage output level vs load of xDuoo x10 Low as AMP mode


Graphics setting view
Channel:




Table of measured characteristics
Maximum voltage output level vs load xDuoo x10 Low (the source data for the spectra)
Limit
Clear or equal class AF.A.Q.
Optimal or equal class ABF.A.Q.
Hard or equal class BF.A.Q.
Max, before clippingF.A.Q.
Level
VRMS
dBV
VRMS
dBV
VRMS
dBV
VRMS
dBV
loaded 16 ohm
0,58
-4,71
1,46
3,28
1,46
3,28
1,46
3,28
loaded 25 ohm
0,82
-1,69
2,07
6,31
2,07
6,31
2,07
6,31
loaded 31 ohm
1,16
1,32
1,84
5,32
1,84
5,32
2,32
7,32
loaded 62 ohm
1,65
4,34
1,85
5,34
1,85
5,34
2,33
7,34
loaded 100 ohm
1,65
4,35
1,85
5,35
1,85
5,35
2,33
7,35
loaded 199 ohm
1,65
4,36
1,85
5,36
1,85
5,36
2,33
7,36
loaded 300 ohm
1,65
4,36
1,85
5,36
1,85
5,36
2,33
7,36
loaded 763 ohm
1,65
4,37
1,85
5,37
1,85
5,37
2,34
7,37
Not loaded
1,65
4,37
1,86
5,37
1,86
5,37
2,34
7,37





The maximum level of voltage from the musical power of xDuoo x10 Low as AMP mode

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Brief information


Table of measured characteristics
Recommended impedances for headphones for xDuoo x10 Low
Recommended impedance for headphones from the range
8 - 1008 Ом для режима работы усилителя
Equivalent class A F.A.Q.
Max, before clippingF.A.Q.
For In-Ear Headphones
8 - 553 ohm
8 - 1007 ohm
For Over-Ear Headphones
8 - 70 ohm
8 - 139 ohm


Table of measured characteristics
xDuoo x10 Low
Output Impedance
0.11 ohm
Power characteristics of the
Voltage
Current
Equivalent class A F.A.Q.
1.65 VRMS
4.37 dBV
36.15 mA
31.16 dB(mA)
Equivalent class AB F.A.Q.
2.07 VRMS
6.31 dBV
88.31 mA
38.92 dB(mA)
Equivalent class B F.A.Q.
2.07 VRMS
6.31 dBV
88.31 mA
38.92 dB(mA)
Maximum mode F.A.Q.
2.34 VRMS
7.37 dBV
88.31 mA
38.92 dB(mA)

Maximum current level output vs load of xDuoo x10 Low as AMP mode


Graphics setting view
Channel:




Table of measured characteristics
Maximum current level output vs load xDuoo x10 Low (the source data for the spectra)
Level, mA
Clear or equal class AF.A.Q.
Optimal or equal class ABF.A.Q.
Hard or equal class BF.A.Q.
Max, before clippingF.A.Q.
Level
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
loaded 16 ohm
36,79
31,32
92,35
39,31
92,35
39,31
92,35
39,31
loaded 25 ohm
33,61
30,53
84,38
38,53
84,38
38,53
84,38
38,53
loaded 31 ohm
38,17
31,64
60,48
35,63
60,48
35,63
76,13
37,63
loaded 62 ohm
26,42
28,44
29,65
29,44
29,65
29,44
37,32
31,44
loaded 100 ohm
16,51
24,35
18,52
25,35
18,52
25,35
23,31
27,35
loaded 199 ohm
8,31
18,39
9,32
19,39
9,32
19,39
11,73
21,39
loaded 300 ohm
5,51
14,82
6,18
15,82
6,18
15,82
7,78
17,82
loaded 763 ohm
2,17
6,72
2,43
7,72
2,43
7,72
3,06
9,72
Not loaded
0,03
-29,61
0,04
-28,61
0,04
-28,61
0,05
-26,61



Maximum power level output level vs load of xDuoo x10 Low as AMP mode


Graphics setting view
Channel:




Table of measured characteristics
Maximum power level output level vs load xDuoo x10 Low (the source data for the spectra)
Limit
Clear or equal class AF.A.Q.
Optimal or equal class ABF.A.Q.
Hard or equal class BF.A.Q.
Max, before clippingF.A.Q.
Level
mW
dBm
mW
dBm
mW
dBm
mW
dBm
loaded 16 ohm
21,39
13,30
134,75
21,30
134,75
21,30
134,75
21,30
loaded 25 ohm
27,68
14,42
174,46
22,42
174,46
22,42
174,46
22,42
loaded 31 ohm
44,44
16,48
111,58
20,48
111,58
20,48
176,79
22,47
loaded 62 ohm
43,57
16,39
54,84
17,39
54,84
17,39
86,90
19,39
loaded 100 ohm
27,25
14,35
34,30
15,35
34,30
15,35
54,35
17,35
loaded 199 ohm
13,72
11,37
17,27
12,37
17,27
12,37
27,37
14,37
loaded 300 ohm
9,10
9,59
11,46
10,59
11,46
10,59
18,16
12,59
loaded 763 ohm
3,58
5,54
4,51
6,54
4,51
6,54
7,15
8,54
Not loaded
0,05
-12,62
0,07
-11,62
0,07
-11,62
0,11
-9,62





THD vs load vs output voltage of xDuoo x10 Low as AMP mode


Graphics setting view
Channel:
Load, ohm:
Type test:




Table of measured characteristics

Spectrum of Total Harmonic Distortion vs Level of xDuoo x10 Low as AMP mode

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:



Spectrum of IMD SMPTE vs Level of xDuoo x10 Low as AMP mode

Not loaded


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:



Spectrum of IMD CCIF vs Level of xDuoo x10 Low as AMP mode

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:



Spectrum of Multitone Distortion vs Level vs Load of xDuoo x10 Low as AMP mode

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:




On-line comparison and selection services for xDuoo x10 Low

The automatic selection of the optimal AMP models from xDuoo x10 Low.
from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.



Измерения xDuoo x10 Low проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Тест xDuoo x10 Low 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 наушниками 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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