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Sub Near Field Response – Home Acoustics Alliance Portal
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Sub Near Field Response

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  • Click the arrow on the checklist item to open the FFT test.
  • This test is performed much like the near field test for the other speakers but at a closer distance.
  • Low frequencies in a small room are prone to more response distortion and that can greatly change the organic response of the subwoofer.
  • Placing the microphone within an inch (25 mm) or less maximizes the intensity of the direct sound and minimizes room distortion.
  • The resulting plot will be a truer version of the subs actual response.
  • This plot is good to reference when doing subwoofer equalization later in the calibration. Matching the organic response of the sub when EQing means we've largely eliminated room effects.
  • Touch the return arrow to return to the checklist. Don't forget to mark the item complete.
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