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Manufacturers / xDuoo

Test report xDuoo X20: Balance (report for a pro)



About this report
This is a report for professionals with a suite of test of headphone amplifier.

You can see a simple report for "dummies" with explanations of the main characteristics for xDuoo X20 Balance

One product can have multiple reports in different modes and with different a suite of tests.

A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".



Test report - general data the headphone amplifier xDuoo X20 Balance

Frequency response, Impedance and Frequency response with standard headphones


Graphics setting view
Range, dB:

The maximum level of voltage from the musical power for the amplifier output

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General results
General results
xDuoo X20 Balance
Channel
Center/Summary
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,06, 0,03
Average value of impedance band in 40 Hz to 15 kHz, Ohm
1,0
Max voltage output
VRMS
dBV
Clear or equal class A?
3,27
10,30
Optimal or equal class AB?
3,27
10,30
3,27
10,30
Maximum current output at loaded
Ohm
mA
Clear or equal class A?
24,5
90,21
Optimal or equal class AB?
15,8
97,02
24,5
101,22
24,5
101,22
Max power output
Ohm
mW
dBm
Clear or equal class A?
30,5
206,14
23,14
Optimal or equal class AB?
30,5
259,54
24,14
30,5
259,54
24,14
30,5
259,54
24,14

The table shows the most important technical characteristics xDuoo X20 Balance

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


Test conditions


The tags (specifications) for this report are:
Type of product :
Amplifier type :
Mobility :
A set of tests the amplifier contains :


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Frequency response the headphone amplifier xDuoo X20 Balance


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response xDuoo X20 Balance
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,06, 0,03
-0,06, 0,03


Impedance the headphone amplifier xDuoo X20 Balance


Graphics setting view
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Impedance xDuoo X20 Balance
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, Ohm
1,0
1,1
Resistance at 500 Hz, Ohm
1,0
1,1
Resistance at 1000 Hz, Ohm
1,0
1,1
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
5940,0
5940,0
The minimum value in band from 40 Hz to 15 kHz, Ohm
1,0
1,1
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
7910,5
7910,5
The maximum value in band from 40 Hz to 15 kHz, Ohm
1,0
1,1


Comparison of the parameters

Comparison of the impedance of xDuoo X20 Balance versus other models

How much are the characteristics of xDuoo X20 Balance different from other models?
This can be compared for all measured headphone models



Crosstalk the headphone amplifier xDuoo X20 Balance


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



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table


Crosstalk Phase the headphone amplifier xDuoo X20 Balance


Graphics setting view
Channel:
Load, Ohm:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Frequency response with loaded resistors from xDuoo X20 Balance


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response of amplifier the headphone amplifier xDuoo X20 Balance
with resistive load
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 Ohm, dB
0,01
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



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of xDuoo X20 Balance changes when connected to different headphones? In the example the xDuoo X20 Balance and headphones Enigma Acoustics & Lotoo Dharma D200 , Sennheiser CX 5.00 , Sunrise Dragon Default, Audio-Technica ATH-E40 , Apple EarPods ). You can choose and compare bundles with other headphones .


Frequency response the headphone amplifier xDuoo X20 Balance load dynamic headphone type


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response of the headphone amplifier xDuoo X20 Balance
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,18

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



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of xDuoo X20 Balance changes when connected to different headphones? In the example the xDuoo X20 Balance and headphones Grado eGrado , VE Monk Plus , Jays v-Jays Small ). You can choose and compare bundles with other headphones .


Deviation of frequency response the headphone amplifier xDuoo X20 Balance load dynamic headphone type


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response of amplifier xDuoo X20 Balance
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,11

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



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of xDuoo X20 Balance changes when connected to different headphones? In the example the xDuoo X20 Balance and headphones Grado eGrado , VE Monk Plus , Jays v-Jays Small ). You can choose and compare bundles with other headphones .


Frequency response the headphone amplifier xDuoo X20 Balance loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response of amplifier xDuoo X20 Balance
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,45

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



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of xDuoo X20 Balance changes when connected to different headphones? In the example the xDuoo X20 Balance and headphones Oriolus MK2 , Sony XBA-Z5 , Creative In-Ear 3 , Phiaton PS 320 , Dunu DN-2002 , iBasso IT03 , Dunu DN 900 ). You can choose and compare bundles with other headphones .


Deviation of frequency response the headphone amplifier xDuoo X20 Balance loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table
Frequency response of amplifier xDuoo X20 Balance
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,48

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



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of xDuoo X20 Balance changes when connected to different headphones? In the example the xDuoo X20 Balance and headphones Oriolus MK2 , Sony XBA-Z5 , Creative In-Ear 3 , Phiaton PS 320 , Dunu DN-2002 , iBasso IT03 , Dunu DN 900 ). You can choose and compare bundles with other headphones .


Maximum voltage output level vs load xDuoo X20 Balance


Graphics setting view
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table


Maximum voltage output level vs load xDuoo X20 Balance (the source data for the spectra)
Level
VRMS
dBV
VRMS
dBV
VRMS
dBV
VRMS
dBV
loaded 16 Ohm
1,09
0,71
1,53
3,71
1,53
3,71
1,53
3,71
loaded 25 Ohm
2,21
6,89
2,21
6,89
2,48
7,89
2,48
7,89
loaded 31 Ohm
2,51
7,98
2,81
8,99
2,81
8,99
2,81
8,99
loaded 62 Ohm
3,22
10,15
3,22
10,15
3,22
10,15
3,22
10,15
loaded 100 Ohm
3,24
10,21
3,24
10,21
3,24
10,21
3,24
10,21
loaded 199 Ohm
3,26
10,25
3,26
10,25
3,26
10,25
3,26
10,25
loaded 300 Ohm
3,26
10,27
3,26
10,27
3,26
10,27
3,26
10,27
loaded 763 Ohm
3,26
10,25
3,26
10,25
3,26
10,25
3,26
10,25
Not loaded
3,27
10,30
3,27
10,30
3,27
10,30
3,27
10,30






The maximum level of voltage from the musical power for the amplifier output xDuoo X20 Balance

Ваш браузер не поддерживает Canvas 
Recommended impedances for headphones for xDuoo X20 Balance
Recommended impedances for headphones out of range
8 - 1008 Ом для режима работы усилителя
For IEM
8 - 1007 Ohm
8 - 1007 Ohm
For On-Ear Headphones
8 - 274 Ohm
8 - 274 Ohm
xDuoo X20 Balance
Output Impedance
0.00 Ohm
Power characteristics
Voltage
Current
3.27 VRMS
10.30 dBV
79.81 mA
38.04 dB(mA)
3.27 VRMS
10.30 dBV
97.02 mA
39.74 dB(mA)
3.27 VRMS
10.30 dBV
97.02 mA
39.74 dB(mA)
3.27 VRMS
10.30 dBV
97.02 mA
39.74 dB(mA)


Maximum current level output vs load xDuoo X20 Balance


Graphics setting view
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table


Maximum current level output vs load xDuoo X20 Balance (the source data for the spectra)
Level, mA
Optimal or equal class AB?
Level
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
loaded 16 Ohm
68,69
36,74
97,02
39,74
97,02
39,74
97,02
39,74
loaded 25 Ohm
90,21
39,10
90,21
39,10
101,22
40,11
101,22
40,11
loaded 31 Ohm
82,21
38,30
92,25
39,30
92,25
39,30
92,25
39,30
loaded 62 Ohm
51,54
34,24
51,54
34,24
51,54
34,24
51,54
34,24
loaded 100 Ohm
32,40
30,21
32,40
30,21
32,40
30,21
32,40
30,21
loaded 199 Ohm
16,37
24,28
16,37
24,28
16,37
24,28
16,37
24,28
loaded 300 Ohm
10,88
20,73
10,88
20,73
10,88
20,73
10,88
20,73
loaded 763 Ohm
4,27
12,60
4,27
12,60
4,27
12,60
4,27
12,60
Not loaded
0,07
-23,68
0,07
-23,68
0,07
-23,68
0,07
-23,68




Maximum power level output level vs load xDuoo X20 Balance


Graphics setting view
Channel:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table


Maximum power level output level vs load xDuoo X20 Balance (the source data for the spectra)
Level
mW
dBm
mW
dBm
mW
dBm
mW
dBm
loaded 16 Ohm
74,55
18,72
148,74
21,72
148,74
21,72
148,74
21,72
loaded 25 Ohm
199,36
23,00
199,36
23,00
251,02
24,00
251,02
24,00
loaded 31 Ohm
206,14
23,14
259,54
24,14
259,54
24,14
259,54
24,14
loaded 62 Ohm
165,77
22,20
165,77
22,20
165,77
22,20
165,77
22,20
loaded 100 Ohm
104,98
20,21
104,98
20,21
104,98
20,21
104,98
20,21
loaded 199 Ohm
53,30
17,27
53,30
17,27
53,30
17,27
53,30
17,27
loaded 300 Ohm
35,50
15,50
35,50
15,50
35,50
15,50
35,50
15,50
loaded 763 Ohm
13,89
11,43
13,89
11,43
13,89
11,43
13,89
11,43
Not loaded
0,21
-6,69
0,21
-6,69
0,21
-6,69
0,21
-6,69




THD vs load vs output voltage xDuoo X20 Balance


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



Brief information
Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Table


Spectrum of Total Harmonic Distortion vs Level the headphone amplifier xDuoo X20 Balance

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:



Not loaded


Graphics setting view
Channel:
Level, dBV:



Brief information
Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Spectrum of IMD SMPTE vs Level the headphone amplifier xDuoo X20 Balance

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:



Not loaded


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



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Spectrum of IMD CCIF vs Level the headphone amplifier xDuoo X20 Balance

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:



Not loaded


Graphics setting view
Channel:
Level, dBV:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Spectrum of Multitone Distortion vs Level vs Load the headphone amplifier xDuoo X20 Balance

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:



Not loaded


Graphics setting view
Channel:
Level, dBV:



Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



On-line comparison and selection services for xDuoo X20 Balance

The automatic selection of the optimal AMP models from xDuoo X20 Balance.
from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.



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