Measurement's report xDuoo X20 Flash test and graphs - Reference Audio Analyzer
xDuoo X20
Headphone amplifierBalance
Unbalance
Headphone amplifierBalance
Unbalance



Reports / xDuoo / X20 / Flash / DAC Line Out / report for a pro

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






Test report - general data of xDuoo X20 Flash as Line Out mode

Frequency response


Graphics setting view
Frequency band, Hz:
Range, dB:
Type test:

Spectrum of Total Harmonic Distortion (THD)

Spectrum of Jitter


Spectrum of Multitone Distortion



General results
General results xDuoo X20 Flash
Channel
Center/Summary
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,04, 0,01
Max voltage output at 0 dBFS, VRMS
1,62
Max voltage output at 0 dBFS, dBV
4,20
Max voltage output at 0 dBFS, dBu
6,42
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-90,1
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,003121
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-98,6
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,001173

The table shows a most important technical characteristics of xDuoo X20 Flash

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



Test conditions



Frequency response of xDuoo X20 Flash as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Type test:




Table of measured characteristics
Frequency response xDuoo X20 Flash
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,04, 0,01
-0,04, 0,01

Crosstalk of xDuoo X20 Flash as Line Out mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Crosstalk xDuoo X20 Flash
Crosstalk at the frequency 100 Hz, dB
-109,8
Crosstalk at the frequency 1000 Hz, dB
-104,3
Crosstalk at the frequency 10000 Hz, dB
-83,6

Crosstalk Phase of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:



THD vs output voltage of line out of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Type test:




Table of measured characteristics
THD vs output voltage of line out xDuoo X20 Flash
Max voltage output at 0 dBFS, VRMS
1,62
Max voltage output at 0 dBFS, dBV
4,20
Max voltage output at 0 dBFS, dBu
6,42


Total Harmonic Distortion vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Type test:



Impulse response of xDuoo X20 Flash as Line Out mode


Graphics setting view
Time, ms:
Channel:



Impulse Response Envelope (ETC - Energy Time Curve) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Time, ms:
Range, dB:
Channel:



Step response of xDuoo X20 Flash as Line Out mode


Graphics setting view
Time, ms:
Channel:



Aliasing of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Type test:



Checking for correctness of reproduction signals depth more than 16-bit of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Type test:



Spectra of high resolution

Noise floor spectrum of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Total Harmonic Distortion (THD) of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:
Scale:




Table of measured characteristics
Harmonic distortion
xDuoo X20 Flash
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-90,1
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,003121
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-98,6
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,001173




Table of measured characteristics
The levels of harmonics when applying signal 1 kHz 0 dBFS
xDuoo X20 Flash
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
0,0
-94,0
-94,1
-103,3
-100,4
-111,0
-106,7
-111,9
-114,3
-139,7
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-114,0
-120,2
-119,6
-140,7
-119,6
-131,3
-128,3
-127,0
-121,1
-129,8


The levels of harmonics when applying signal 1 kHz -3 dBFS
xDuoo X20 Flash
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
-3,0
-103,5
-110,0
-114,8
-116,3
-112,6
-121,4
-133,5
-118,5
-140,5
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-128,0
-141,1
-126,6
-128,7
-130,2
-131,6
-135,1
-132,9
-139,8
-139,9
The data in the tables correspond to by average value of left and right channels

Spectrum of Dynamic Range (-60 dBFS) of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Sine low ammplitude spectrum -90 dBFS of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Intermodulation Distortion (IMD) - SMPTE of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Level, dBFS:
Scale:



Spectrum of Intermodulation Distortion (IMD) - CCIF of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:



Spectrum of Multitone Distortion of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:
Type test:



Spectrum of Noise Distortion of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:



Spectrum of Jitter of xDuoo X20 Flash (High resolution graph) as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Type test:




Table of measured characteristics
The accuracy of the playback speed xDuoo X20 Flash
Fundamental tone 11025 Hz, Hz
11025,0000
Variance from 11025 Hz, Hz
0,0000

Spectra vs Amplitude

Total Harmonic Distortion vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of IMD SMPTE vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


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



Spectrum of IMD CCIF vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of Multitone Distortion vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Level, dBFS:
Type test:



Spectrum of Noise Distortion vs Level (dBFS) of xDuoo X20 Flash as Line Out mode


Graphics setting view
Channel:
Level, dBFS:









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