Measurement's report OPPO HA-2 - Reference Audio Analyzer

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Navigating through reports of OPPO HA-2 (Click to open)
OPPO HA-2 is available in reports and services. You are in a professional report.

Information for entry level users

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: HA-2
    Spectra of high resolution
    Spectra vs Amplitude

    OPPO HA-2

    About this report
    This is a report for professionals with a suite of tests for line output devices. Alternative version of the report for "dummies" in development.

    A suite of tests for the line-out can be used for headphone or speaker output if in this mode it is possible to use the device as a source for connecting an external amplifier or if such a test suite can give more information about the implementation of the DAC in the device.

    Line-out, differences from the output for headphones and speakers



    

    Test report - general data OPPO HA-2 (as Line Out mode)

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    Max voltage output at 0 dBFS0.4dBV
    1.0VRMS





    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





    Frequency response OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Range

    Frequency band


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



    Impulse response OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Duration for impulse, envelope and step responses

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    Graphics setting view
    Channel

    Duration for impulse, envelope and step responses




    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



    Harmonic Distortion vs Level OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Comparison by

    Harmonic, number


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



     

    Spectrum of Total Harmonic Distortion (THD) OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Level @ dBFS

    Range

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    Graphics setting view
    Channel

    Level @ dBFS

    Range


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



     

    Spectra OPPO HA-2 (as Line Out mode)

    Spectrum of Dynamic Range (-60 dBFS)

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    Graphics setting view
    Channel

    Range

    Sine low ammplitude spectrum -90 dBFS

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    Graphics setting view
    Channel

    Range


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



    

    Spectrum of Intermodulation Distortion (IMD) - SMPTE OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Level @ dBFS

    Range

    Range


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



    

    Spectrum of Intermodulation Distortion (IMD) - CCIF OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Level @ dBFS

    Range


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



    

    Spectrum of Jitter OPPO HA-2 (as Line Out mode)

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    Graphics setting view
    Channel

    Range

    Range

    Range


    Brief information

    Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





    More detailed

    Measurements of OPPO HA-2 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

    The OPPO HA-2 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.




    OPPO HA-2 is available in reports and services. You are in a professional report.

    Information for entry level users

    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:






      Original text in Russian page. Translation page is not yet ready

      You can help with translation via the: facebook and feedback.




      Comments

      Commentary view:





      ANDREY L.
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-05 13:02:32

      Комментарий к оглавлению отчетов OPPO HA-2
      Добрый день Роман. Скажите пожалуйста как можно узнать какой микшер громкости установлен в данном ЦАПусь, аналоговый или цифровой?
      Reply


      romanrex
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-05 13:30:52

      Комментарий к оглавлению отчетов OPPO HA-2

      ANDREY L. 2019-05-05 13:02:32
      Комментарий к оглавлению отчетов OPPO HA-2
      Добрый день Роман. Скажите пожалуйста как можно узнать какой микшер громкости установлен в данном ЦАПусь, аналоговый или цифровой?



      Раз регулятор громкости безупорный, значит цифровой.

      В редких случаях делают безупорные регуляторы с управлением матрицы резисторов на реле и там об этом отдельно сообщают (и цена сильно подскакивает).
      Reply


      ANDREY L.
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-05 13:54:41

      Комментарий к оглавлению отчетов OPPO HA-2

      romanrex 2019-05-05 13:30:52
      Комментарий к оглавлению отчетов OPPO HA-2
      Раз регулятор громкости безупорный, значит цифровой.

      В редких случаях делают безупорные регуляторы с управлением матрицы резисторов на реле и там об этом отдельно сообщают (и цена сильно подскакивает).



      А на данном ЦАПусь какой регулятор, с упором или без упора? Просто в руках не держал а в характеристиках на разных профильных сайтах про это ни слово не говорится. Кстати у Вас в описании тоже это не указывается )))).
      Reply


      ANDREY L.
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-05 14:11:12

      Комментарий к оглавлению отчетов OPPO HA-2
      Встретил вот такое описание более новой модели этого усилителя НА-2SE.
      " Какого-либо DSP у HA-2SE, как и у предшественника, нет, а соответственно нет и цифровых обработок, которые только портят звук. Регулировка громкости встроена в чип ЦАПа, а потенциометр со стальной «крутилкой» лишь вводит в него данные".
      Получается, что регулятор громкости цифровой?
      Reply


      romanrex
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-05 15:24:45

      Комментарий к оглавлению отчетов OPPO HA-2
      Да, цифровой в самой микросхеме ЦАП.
      Reply


      ANDREY L.
      Изображения, медиа и смайлы доступны в исходном чате.
      2019-05-06 05:50:55

      Комментарий к оглавлению отчетов OPPO HA-2
      Спасибо Роман.
      Reply


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