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Manufacturers / xDuoo

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



About this report
This is a report for professionals with a suite of tests for line output devices. Alternative version of the report for "dummies" in development.

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

A suite of tests for the line-out can be used for headphone or speaker output if in this mode it is possible to use the device as a source for connecting an external amplifier or if such a test suite can give more information about the implementation of the DAC in the device.



Test report - general data DAC xDuoo X20 Flash

Frequency response


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

Spectrum of Total Harmonic Distortion (THD)

Spectrum of Jitter


Spectrum of Multytone 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 the most important technical characteristics xDuoo X20 Flash

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



Test conditions


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DAC Test Set :


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Frequency response DAC xDuoo X20 Flash


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


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 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 DAC xDuoo X20 Flash


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
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 DAC xDuoo X20 Flash


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.

THD vs output voltage of line out xDuoo X20 Flash


Graphics setting view
Channel:
Type test:


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
THD vs output voltage of line out xDuoo_X20
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)DAC xDuoo X20 Flash


Graphics setting view
Channel:
Type test:


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.

Impulse response DAC xDuoo X20 Flash


Graphics setting view
Time, ms:
Channel:


Brief information
During the test, played a pulse with a sampling frequency of 44.1 kHz and the recording is performed with a sampling frequency of 192 kHz / 24-bit

The impulse response can identify the type of digital filter DAC.

it is a translation from the Russian language. The original text of the report in Russian. Suggest alternative translation possible through the forum, feedback or select text and press Ctrl+Enter (anonymously).

Impulse Response Envelope (ETC - Energy Time Curve) DAC xDuoo X20 Flash


Graphics setting view
Time, ms:
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.

Step response DAC xDuoo X20 Flash


Graphics setting view
Time, ms:
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.

Aliasing DAC xDuoo X20 Flash


Graphics setting view
Channel:
Type test:


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.

Checking for correctness of reproduction signals depth more than 16-bit from DAC xDuoo X20 Flash


Graphics setting view
Channel:
Type test:


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.

Spectra of high resolution

Noise floor spectrum DAC xDuoo X20 Flash (High resolution graph)


Graphics setting view
Range, dB:
Channel:
Scale:


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 Total Harmonic Distortion (THD) DAC xDuoo X20 Flash (High resolution graph)


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


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
Harmonic distortion
xDuoo_X20
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

The levels of harmonics when applying signal 1 kHz 0 dBFS
xDuoo_X20
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
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) DAC xDuoo X20 Flash (High resolution graph)


Graphics setting view
Range, dB:
Channel:
Scale:


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.

Sine low ammplitude spectrum -90 dBFS DAC xDuoo X20 Flash (High resolution graph)


Graphics setting view
Range, dB:
Channel:
Scale:


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 Intermodulation Distortion (IMD) - SMPTE DAC xDuoo X20 Flash (High resolution graph)


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


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 Intermodulation Distortion (IMD) - CCIF DAC xDuoo X20 Flash (High resolution graph)


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


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 Multytone Distortion DAC xDuoo X20 Flash (High resolution graph)


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


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 Noise Distortion DAC xDuoo X20 Flash (High resolution graph)


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


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 Jitter DAC xDuoo X20 Flash (High resolution graph)


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


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


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) DAC xDuoo X20 Flash


Graphics setting view
Channel:
Level, dBFS:


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 SMPTE vs Level (dBFS) DAC xDuoo X20 Flash


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


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 (dBFS) DAC xDuoo X20 Flash


Graphics setting view
Channel:
Level, dBFS:


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 (dBFS) DAC xDuoo X20 Flash


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


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 Noise Distortion vs Level (dBFS) DAC xDuoo X20 Flash


Graphics setting view
Channel:
Level, dBFS:


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.


Original text in Russian page. Translation page is not yet ready

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