Comment on Astell&Kern AK320

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Astell&Kern AK320 is available in reports and services. You are on the review page.

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      Comparison of on-line graphs



      Original text in Russian. You can translate text of Google. The original text in Russian page.

      





      Explanation of the report from Astell&Kern AK320


      AK320 plays an audio stream of 44.1 kHz on the DAC is not direct. AK320 uses resampling. This is evidenced by the aliasing graph.
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      AK320 have AK4490 DAC. AK4490 DAC have five presets digital filter. it's Sharp, Slow, Short Sharp, Short Slow and Super Slow. Aliasing graph from AK320 dues not similar to them presets.

      AK320 have a similar graph as KANN

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      if KANN connect to USB (as USB-DAC) digital filter works default preset Short Sharp. SRC off from Astell&Kern.

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      SRC does not off in AK320 with connect to USB.

      Quality of SRC is good. SRC have not visible distortions. Probably, sound stream 44.1 kHz upsample to 174 kHz. This algorithm replace path algorithm of digital filter from DAC.

      Общая информация о характеристиках цифровых фильтров для ЦАП рассмотрена отдельно.



      if external dac connect to spdif to AK320, soundstream out is correct without SRC.





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      More detailed

      Measurements of Astell&Kern AK320 Balanced Out were carried out by Roman Kuznetsov on the hardware-software complex RAA.

      The Astell&Kern AK320 Balanced Out 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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