Measurement's report Audinst HUD-DX1 USB Power test and graphs - Reference Audio Analyzer
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Audinst HUD-DX1 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)
    (DAC Line Out)
    Comparison of on-line graphs

    Quick jump to the schedule in this report: USB Power



    Audinst HUD-DX1 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)
      (DAC Line Out)
      Comparison of on-line graphs


      Quick jump to the schedule in this report: USB Power

      Reports / Audinst / HUD-DX1 / USB Power / DAC Line Out / report for a pro

      Test report Audinst HUD-DX1: USB Power (report for a pro)

      




      Test report - general data of Audinst HUD-DX1 USB Power 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 Audinst HUD-DX1 USB Power
      Channel
      Center/Summary
      Variation in frequency response in band from 100 Hz to 10 kHz, dB
      -0,08, 0,01
      Max voltage output at 0 dBFS, VRMS
      2,10
      Max voltage output at 0 dBFS, dBV
      6,46
      Max voltage output at 0 dBFS, dBu
      8,68
      Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
      -43,3
      Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
      0,687483
      Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
      -105,3
      Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
      0,000541

      The table shows a most important technical characteristics of Audinst HUD-DX1 USB Power

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



      Test conditions

      

      Detailed measurements report of technical characteristics


      Report content

      Spectra of high resolution

      Spectra vs Amplitude






      Frequency response of Audinst HUD-DX1 USB Power as Line Out mode


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




      Table of measured characteristics
      Frequency response Audinst HUD-DX1 USB Power
      Channel
      Left
      Right
      Variation in frequency response in band from 100 Hz to 10 kHz, dB
      -0,08, 0,01
      -0,08, 0,01

      Crosstalk of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Range, dB:
      Channel:




      Table of measured characteristics
      Crosstalk Audinst HUD-DX1 USB Power
      Crosstalk at the frequency 100 Hz, dB
      -109,6
      Crosstalk at the frequency 1000 Hz, dB
      -98,5
      Crosstalk at the frequency 10000 Hz, dB
      -78,9

      Crosstalk Phase of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:



      THD vs output voltage of line out of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Type test:




      Table of measured characteristics
      THD vs output voltage of line out Audinst HUD-DX1 USB Power
      Max voltage output at 0 dBFS, VRMS
      2,10
      Max voltage output at 0 dBFS, dBV
      6,46
      Max voltage output at 0 dBFS, dBu
      8,68


      Total Harmonic Distortion vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Type test:



      Impulse response of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Time, ms:
      Channel:



      Impulse Response Envelope (ETC - Energy Time Curve) of Audinst HUD-DX1 USB Power as Line Out mode


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



      Step response of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Time, ms:
      Channel:



      

      Aliasing of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Type test:



      Checking for correctness of reproduction signals depth more than 16-bit of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Type test:

      

      Waveforms of Audinst HUD-DX1 USB Power as Line Out mode


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



      Spectrums of Audinst HUD-DX1 USB Power as Line Out mode


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



      Spectra of high resolution

      Noise floor spectrum of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


      Graphics setting view
      Range, dB:
      Channel:
      Scale:



      Spectrum of Total Harmonic Distortion (THD) of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


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




      Table of measured characteristics
      Harmonic distortion
      Audinst HUD-DX1 USB Power
      Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
      -43,3
      Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
      0,687483
      Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
      -105,3
      Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
      0,000541




      Table of measured characteristics
      The levels of harmonics when applying signal 1 kHz 0 dBFS
      Audinst HUD-DX1 USB Power
      Harmonic, number
      1
      2
      3
      4
      5
      6
      7
      8
      9
      10
      The level of harmonics, dB
      0,0
      -51,0
      -51,1
      -51,9
      -52,6
      -52,4
      -54,4
      -54,8
      -55,9
      -70,1
      Harmonic, number
      11
      12
      13
      14
      15
      16
      17
      18
      19
      20
      The level of harmonics, dB
      -59,6
      -60,7
      -64,8
      -66,8
      -72,0
      -79,1
      -88,2
      -78,0
      -74,4
      -72,0


      The levels of harmonics when applying signal 1 kHz -3 dBFS
      Audinst HUD-DX1 USB Power
      Harmonic, number
      1
      2
      3
      4
      5
      6
      7
      8
      9
      10
      The level of harmonics, dB
      -3,0
      -113,5
      -110,9
      -138,7
      -120,8
      -139,1
      -121,5
      -146,4
      -125,7
      -157,1
      Harmonic, number
      11
      12
      13
      14
      15
      16
      17
      18
      19
      20
      The level of harmonics, dB
      -131,9
      -144,0
      -133,0
      -145,9
      -134,7
      -152,7
      -141,9
      -148,8
      -135,1
      -149,0
      The data in the tables correspond to by average value of left and right channels

      Spectrum of Dynamic Range (-60 dBFS) of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


      Graphics setting view
      Range, dB:
      Channel:
      Scale:



      Sine low ammplitude spectrum -90 dBFS of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


      Graphics setting view
      Range, dB:
      Channel:
      Scale:



      Spectrum of Intermodulation Distortion (IMD) - SMPTE of Audinst HUD-DX1 USB Power (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 Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


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



      Spectrum of Multitone Distortion of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


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



      Spectrum of Noise Distortion of Audinst HUD-DX1 USB Power (High resolution graph) as Line Out mode


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



      Spectrum of Jitter of Audinst HUD-DX1 USB Power (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 Audinst HUD-DX1 USB Power
      Fundamental tone 11025 Hz, Hz
      11025,0000
      Variance from 11025 Hz, Hz
      0,0000

      Spectra vs Amplitude

      Total Harmonic Distortion vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Level, dBFS:



      Spectrum of IMD SMPTE vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


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



      Spectrum of IMD CCIF vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Level, dBFS:



      Spectrum of Multitone Distortion vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


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



      Spectrum of Noise Distortion vs Level (dBFS) of Audinst HUD-DX1 USB Power as Line Out mode


      Graphics setting view
      Channel:
      Level, dBFS:



      Close ⊗

      Measurements of Audinst HUD-DX1 USB Power were carried out by Roman Kuznetsov on the hardware-software complex RAA.

      The Audinst HUD-DX1 USB Power 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




      Audinst HUD-DX1 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)
        (DAC Line Out)
        Comparison of on-line graphs



        Quick jump to the schedule in this report: USB Power


        ⊗ Kennerton
        ⊗ PRO account
        ⊗ Sertification

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        Comments

        Commentary view:





        romanrex
        2019-09-10 08:07:00

        Комментарий к профессиональному отчету Audinst HUD-DX1 USB Power
        Регулятор громкости работает как на линейный выход, так и на усилитель для наушников.

        При подключении по USB без внешнего БП на участке линейного выхода есть недоработка - при амплитудах выше -1 dBFS на линейном выходе наблюдается клиппирование сигнала. Регулятор громкости ситуацию не спасает. При при выставлении низкой громкости клиппирование с линейного выхода остается. Если выставить большой уровень - то клиппирование будет происходить раньше.

        Аналоговая регулировка уровня громкости находится после участка с клипированием, а это значит, что это клиппирование неизбежно и на линейном выходе, и на выходах для наушников.

        Для получения качественного звука необходимо уменьшить уровень на 1 дБ в программном плеере (или в микшере операционной системы) еще до ЦАП, и в этом случае проблема уйдет.

        Проблемой вероятно является недостаточный уровень напряжения от USB. При подключении внешних блоков питания эта проблема уходит.
        Reply


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