Test report - general data of Cowon D3 as AMP mode
General results
General results
Cowon D3
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
Detailed measurements report of technical characteristics
Report content
- Frequency response
- Frequency response with loaded resistors
- Frequency response vs load dynamic type headphones | Variation in frequency response dependence of load dynamic type headphones
- Frequency response vs load balance armature headphone type (one driver) | Variation in frequency response vs load balance armature headphone type (one driver)
- Impedance
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
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
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier headphone amplifier Cowon D3
with resistive load
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
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of the headphone amplifier Cowon D3
loaded dynamic headphone type
loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,42
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier Cowon D3
loaded dynamic headphone type
loaded dynamic headphone type
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,42
Graphics setting view
Range, dB:
Table of measured characteristics
Frequency response of amplifier Cowon D3
loaded type balanced armature
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
loaded type balanced armature
Channel
Left
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
2,88
