Measurement's report Cowon D2 Plus test and graphs - Reference Audio Analyzer

Cowon D2 Plus is available in reports and services. You are in a professional report.



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reports for a newbie (Headphone amplifier)

Reports / Cowon / D2 Plus / DAC Line Out / report for a pro

Test report Cowon D2 Plus (report for a pro)






Test report - general data of Cowon D2 Plus 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 Cowon D2 Plus
Channel
Center/Summary
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,03, 0,01
Max voltage output at 0 dBFS, VRMS
0,88
Max voltage output at 0 dBFS, dBV
-1,10
Max voltage output at 0 dBFS, dBu
1,12
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-80,2
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,009784
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-84,3
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,006128

The table shows a most important technical characteristics of Cowon D2 Plus

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



Test conditions



Frequency response of Cowon D2 Plus as Line Out mode


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




Table of measured characteristics
Frequency response Cowon D2 Plus
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,03, 0,01
-0,03, 0,01

Crosstalk of Cowon D2 Plus as Line Out mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Crosstalk Cowon D2 Plus
Crosstalk at the frequency 100 Hz, dB
-95,4
Crosstalk at the frequency 1000 Hz, dB
-98,4
Crosstalk at the frequency 10000 Hz, dB
-96,5

Crosstalk Phase of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:



THD vs output voltage of line out of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Type test:




Table of measured characteristics
THD vs output voltage of line out Cowon D2 Plus
Max voltage output at 0 dBFS, VRMS
0,88
Max voltage output at 0 dBFS, dBV
-1,10
Max voltage output at 0 dBFS, dBu
1,12


Total Harmonic Distortion vs Level (dBFS) of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Type test:



Impulse response of Cowon D2 Plus as Line Out mode


Graphics setting view
Time, ms:
Channel:



Impulse Response Envelope (ETC - Energy Time Curve) of Cowon D2 Plus as Line Out mode


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



Step response of Cowon D2 Plus as Line Out mode


Graphics setting view
Time, ms:
Channel:





Aliasing of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Type test:



Checking for correctness of reproduction signals depth more than 16-bit of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Type test:



Waveforms of Cowon D2 Plus as Line Out mode


Graphics setting view
Time, ms:
Channel:
Type test:



Spectrums of Cowon D2 Plus as Line Out mode


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



Spectra of high resolution

Noise floor spectrum of Cowon D2 Plus (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Total Harmonic Distortion (THD) of Cowon D2 Plus (High resolution graph) as Line Out mode


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




Table of measured characteristics
Harmonic distortion
Cowon D2 Plus
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-80,2
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,009784
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-84,3
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,006128




Table of measured characteristics
The levels of harmonics when applying signal 1 kHz 0 dBFS
Cowon D2 Plus
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
0,0
-95,5
-80,4
-120,2
-98,5
-127,7
-112,9
-133,7
-115,0
-143,3
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-126,6
-134,6
-134,8
-134,9
-134,9
-134,6
-133,4
-134,3
-133,0
-134,1


The levels of harmonics when applying signal 1 kHz -3 dBFS
Cowon D2 Plus
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
-3,0
-100,7
-87,5
-124,7
-113,7
-132,6
-118,1
-133,8
-135,1
-141,9
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-135,9
-134,2
-134,2
-133,9
-134,9
-134,0
-134,2
-135,1
-133,1
-134,7
The data in the tables correspond to by average value of left and right channels

Spectrum of Dynamic Range (-60 dBFS) of Cowon D2 Plus (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Sine low ammplitude spectrum -90 dBFS of Cowon D2 Plus (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Intermodulation Distortion (IMD) - SMPTE of Cowon D2 Plus (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 Cowon D2 Plus (High resolution graph) as Line Out mode


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



Spectrum of Multitone Distortion of Cowon D2 Plus (High resolution graph) as Line Out mode


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



Spectrum of Noise Distortion of Cowon D2 Plus (High resolution graph) as Line Out mode


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



Spectrum of Jitter of Cowon D2 Plus (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 Cowon D2 Plus
Fundamental tone 11025 Hz, Hz
11023,3177
Variance from 11025 Hz, Hz
-1,6823

Spectra vs Amplitude

Total Harmonic Distortion vs Level (dBFS) of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of IMD SMPTE vs Level (dBFS) of Cowon D2 Plus as Line Out mode


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



Spectrum of IMD CCIF vs Level (dBFS) of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of Multitone Distortion vs Level (dBFS) of Cowon D2 Plus as Line Out mode


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



Spectrum of Noise Distortion vs Level (dBFS) of Cowon D2 Plus as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Close

Measurements of Cowon D2 Plus were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Cowon D2 Plus test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.



Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com




Cowon D2 Plus is available in reports and services. You are in a professional report.



Information for entry level users

reports for a newbie (Headphone amplifier)





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