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.
