Measurement's report HiFiMan HM-801 SM SYMMcard 7.2 - Reference Audio Analyzer

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Navigating through reports of HiFiMan HM-801 (Click to open)
HiFiMan HM-801 is available in reports and services. You are in a professional report.

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


      Quick jump to the schedules in this pro report: HM-801 SM SYMMcard 7.2
        Spectra vs Amplitude

        HiFiMan HM-801

        SM SYMMcard 7.2
        About this report
        This is a report for professionals with a suite of test of headphone amplifier.
        You can see a simple report for "dummies" with explanations of the main characteristics for HiFiMan HM-801 SM SYMMcard 7.2

        A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".

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

        Commentary to the report

        Tested in HiFiMan HM 801 Symmcat full mod

        Advantages and disadvantages of balanced amplifiers

        Test report - general data HiFiMan HM-801 (as headphone amplifier)

        Frequency response, Impedance and Frequency response with standard headphones

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        Voltage levels from the load at the output of the amplifier

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        Average value of impedance band in 40 Hz - 15 kHz2.4ohm
        Voltage:
        Linear Mode / Maximum or before clipping level         		11.9/11.9dBV
        3.9/3.9VRMS
        Current:
        Linear Mode / Maximum or before clipping level        		46.7/46.7dB(mA)
        216.0/216.0mA





        Brief information

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        More detailed

        Measurements of HiFiMan HM-801 SM SYMMcard 7.2 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

        The HiFiMan HM-801 SM SYMMcard 7.2 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.

        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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