Measurement's report Astell & Kern iriver AK240 test and graphs - Reference Audio Analyzer
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Test report Astell & Kern iriver AK240

Test report - general data Line Out from DAC Astell & Kern iriver AK240

Frequency response


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General results Astell & Kern iriver AK240
Channel
Summary (Right + Left)
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,01, 0,01
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-97,0
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,001407
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-109,9
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,000321

The table shows a most important technical characteristics of Astell & Kern iriver AK240

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

Test conditions





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Detailed measurements report of technical characteristics

Frequency response Line Out from DAC Astell & Kern iriver AK240


Graphics setting view
Range, dB:
Channel:

Frequency response Astell & Kern iriver AK240
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,02, 0,02
-0,02, 0,02

Noise floor spectrum Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Range, dB:
Channel:
Scale:





Spectrum of Total Harmonic Distortion (THD) Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Range, dB:
Channel:
Level, dBFS:
Scale:

Harmonic distortion
Astell Kern iriver_AK240
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-97,0
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,001407
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-109,9
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,000321





The levels of harmonics when applying signal 1 kHz 0 dBFS
Astell Kern iriver_AK240
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
0,0
-101,4
-100,4
-108,6
-107,4
-118,0
-131,0
-125,8
-128,2
-146,5
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-126,3
-146,5
-140,6
-152,4
-151,3
-153,3
-145,3
-149,5
-142,2
-151,3


The levels of harmonics when applying signal 1 kHz -3 dBFS
Astell Kern iriver_AK240
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
-3,0
-117,7
-117,3
-129,0
-118,7
-150,4
-130,7
-153,8
-134,1
-165,5
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-142,1
-153,4
-145,7
-153,2
-146,6
-152,4
-151,6
-149,6
-151,2
-152,5
The data in the tables correspond to by average value of left and right channels

Spectrum of Dynamic Range (-60 dBFS) Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Channel:
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Sine low ammplitude spectrum -90 dBFS Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Channel:
Scale:





Spectrum of Intermodulation Distortion (IMD) - SMPTE Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Frequency band, Hz:
Range, dB:
Channel:
Level, dBFS:
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Spectrum of Intermodulation Distortion (IMD) - CCIF Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Channel:
Level, dBFS:





Spectrum of Jitter Line Out from DAC Astell & Kern iriver AK240 (High resolution graph)


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Frequency band, Hz:
Range, dB:
Channel:
Type test:




The accuracy of the playback speed Astell & Kern iriver AK240
Fundamental tone 11025 Hz, Hz
11025,0000
Variance from 11025 Hz, Hz
0,0000






More detailed

Measurements of Astell&Kern AK240 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Astell&Kern AK240 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



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