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

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Astell&Kern AK240 is available in reports and services. You are in a professional report.

Information for entry level users

    reports for a newbie (Headphone amplifier)

    Information for all

    Versus of characteristics

    Information for professionals
      reports for a pro (Headphone amplifier)
      reports for a pro (DAC Line Out)
      Comparison of on-line graphs


      Quick jump to the schedules in this pro report: AK240
      Spectra of high resolution




        Test report - general data of Astell&Kern AK240 as Line Out mode

        Frequency response


        Graphics setting view
        Range, dB:

        Spectrum of Total Harmonic Distortion (THD)

        Spectrum of Jitter



        General results
        General results Astell&Kern 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 AK240

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



        Test conditions

        

        Frequency response of Astell&Kern AK240 as Line Out mode


        Graphics setting view
        Range, dB:
        Channel:




        Table of measured characteristics
        Frequency response Astell&Kern 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

        Spectra of high resolution

        Noise floor spectrum of Astell&Kern AK240 (High resolution graph) as Line Out mode


        Graphics setting view
        Range, dB:
        Channel:
        Scale:



        Spectrum of Total Harmonic Distortion (THD) of Astell&Kern AK240 (High resolution graph) as Line Out mode


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




        Table of measured characteristics
        Harmonic distortion
        Astell&Kern 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




        Table of measured characteristics
        The levels of harmonics when applying signal 1 kHz 0 dBFS
        Astell&Kern 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 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) of Astell&Kern AK240 (High resolution graph) as Line Out mode


        Graphics setting view
        Range, dB:
        Channel:
        Scale:



        Sine low ammplitude spectrum -90 dBFS of Astell&Kern AK240 (High resolution graph) as Line Out mode


        Graphics setting view
        Range, dB:
        Channel:
        Scale:



        Spectrum of Intermodulation Distortion (IMD) - SMPTE of Astell&Kern AK240 (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 Astell&Kern AK240 (High resolution graph) as Line Out mode


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



        Spectrum of Jitter of Astell&Kern AK240 (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 Astell&Kern AK240
        Fundamental tone 11025 Hz, Hz
        11025,0000
        Variance from 11025 Hz, Hz
        0,0000


        On-line comparison and selection services for Astell&Kern AK240

        Comparison of basic characteristics: Voltage, Current and Impedance

        Frequency response

        Impedance

        Compare a changed frequency response the bundles of AK240 and headphones

        Comparison of amplifiers by loudness (Volume Level)

        Comparison of the power characteristics of AMPs and interaction headphones Additional headphone compatibility analytics

        Comparison of the optimal range of volume control

        Harmonic Distortion vs Level

        Spectra

        Crosstalk

        Crosstalk Phase

        The automatic selection of the optimal AMP models




        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



        Information for Authors. You can freely use the graphics in your articles with a link to us.




        Astell&Kern AK240 is available in reports and services. You are in a professional report.

        Information for entry level users

          reports for a newbie (Headphone amplifier)

          Information for all

          Versus of characteristics

          Information for professionals
            reports for a pro (Headphone amplifier)
            reports for a pro (DAC Line Out)
            Comparison of on-line graphs




            Quick jump to the schedule in this report:






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