John, as I mentioned, Audyssey does not set speakers to large or small, it looks for the -3dB point of each speaker in your room and reports that to the bass management of each manufacturer. Denon uses 40hz now to determine small/large, whereas Marantz is still using 80hz. Not sure about Onkyo or NAD.

Audyssey also recommends setting speakers to small as the resolution filters they apply work better for the sub to handle, as you mentioned.

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