Reports
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Cowon
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D3
/ A set of device tests as a headphone amplifier - report for a pro
Test report Cowon D3 (report for a pro)
Test report - general data of Cowon D3 as AMP mode
Frequency response, Impedance and Frequency response with standard headphones
Graphics setting view
Range, dB:
General results
General results Cowon D3
Channel
Left
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,03, 0,02
Average value of impedance band in 40 Hz to 15 kHz, ohm
2,2
Max voltage output
VRMS
dBV
Maximum current output at loaded
ohm
mA
Max power output
ohm
mW
dBm
The table shows a most important technical characteristics of Cowon D3
Test conditions
For record of test signals RAA was used ADC: E-MU 1616m
During tests RAA software-hardware measuring complex was used galvanic isolated power transformer and was excluded the effect of ground loop in the spectra
Frequency response of Cowon D3 as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response Cowon D3
Channel
Left
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,03, 0,02
Impedance of Cowon D3 as AMP mode
Table of measured characteristics
Impedance Cowon D3
Channel
Left
Impedance average in band from 40 Hz to 15 kHz, ohm
2,2
Resistance at 500 Hz, ohm
1,9
Resistance at 1000 Hz, ohm
1,8
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
1788,3
The minimum value in band from 40 Hz to 15 kHz, ohm
1,7
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
40,4
The maximum value in band from 40 Hz to 15 kHz, ohm
6,6
Frequency response of Cowon D3 with loaded resistors as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier headphone amplifier Cowon D3 with resistive load
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 ohm, dB
2,13
Variation in frequency response in band 40 Hz to 15 kHz loaded 32 ohm, dB
1,18
Variation in frequency response in band 40 Hz to 15 kHz loaded 50 ohm, dB
0,79
Variation in frequency response in band 40 Hz to 15 kHz loaded 100 ohm, dB
0,41
Variation in frequency response in band 40 Hz to 15 kHz loaded 250 ohm, dB
0,17
Variation in frequency response in band 40 Hz to 15 kHz loaded 600 ohm, dB
0,07
Frequency response of Cowon D3 loaded dynamic headphone type as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of the headphone amplifier Cowon D3 loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,42
Deviation of frequency response of Cowon D3 loaded dynamic headphone type as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier Cowon D3 loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,42
Frequency response of Cowon D3 loaded type balance armature headphone type (one driver) as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier Cowon D3 loaded type balanced armature
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
2,88
Deviation of frequency response of Cowon D3 loaded type balance armature headphone type (one driver) as AMP mode
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier Cowon D3 loaded type balanced armature
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
Measurements of Cowon D3 were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Cowon D3 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.
I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a headphones and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.
Kuznetsov Roman Founder of RAA
Known by the nickname romanrex Аuthor of articles iXBT.com
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Cowon D3 is available in reports and services. You are in a professional report.
Deviation of frequency response of Cowon D3 loaded type balance armature headphone type (one driver) as AMP mode
