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Navigating through reports of Topping Professional E2x2 OTG (Click to open)
Topping Professional E2x2 OTG is available in reports and services. You are on the review page.

Information for entry level users

    reports for a newbie (Headphone amplifier)
    The automatic selection of the optimal AMP models

    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




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      More detailed

      Measurements of Topping Professional E2x2 OTG Hi Gain were carried out by Roman Kuznetsov on the hardware-software complex RAA.

      The Topping Professional E2x2 OTG Hi Gain 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.

      I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a headphones and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




      Kuznetsov Roman
      Founder of RAA



      Known by the nickname romanrex
      Аuthor of articles iXBT.com



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