Originally Posted by Kain
Does the room calibration on the f113 fix out any room nulls or uneven response from the room? I heard that small rooms are bad for bass response and since I have a small room, I would like to know how the room calibration helps or deals with the room response.
The ARO in the Fathom line is a single band, single point EQ solution with no time correction. It measures the response at one point in the room and then selects the largest peak in that response measurement and applies a "variable" filter to it. The variable part is that it can vary the amount of the reduction *and* it can vary the bandwidth over which the reduction is applied. IOW, if you have a broad peak over a large frequency band at your primary listening position, and this is your primary peak, it will apply a broad filter inversely correcting that peak. However, it can only do this for *one* peak at one listening position. If you have multiple peaks at multiple frequencies, it will select the "largest" and apply the filter to that one.
Reducing the level of the largest, broadest peak will also reduce the level of "ringing" or "overhang" of that peak. However, ARO has no "time-based" correction built into it, and it does nothing to improve the ringing of other frequencies.
In many rooms, EQ'ing the single biggest peak is a significant improvement in the sound. It will remove much of the boominess and the impression of "one-note" bass, where all the bass notes sound the same. However, it is not as good as EQ'ing multiple peaks, at multiple listening positions, and adding time-based correction at multiple frequencies. For this kind of correction one needs a multi-point EQ with FIR filters, such as Audyssey MultEQ.