Speakers set to large = no bass management
Speakers set to small = bass management
There are a lot of people that buy an avr because it has Audyssey, MCACC or some other room correction system. Why not use the bass mangement program such as MCACC or Audyssey that cost good money(included in the avr price). This will avoid phase issues, bass cancellation or reinforcement issues, standing wave problems and increase the avr's head room. Some people will think since the RF 7II are rated into the 30 Hz range set them to large. Even the 10 in woofers cannot reproduce as deep and clean a bass note as a good sub. Also the mid bass and midrange should be better with the speakers set to small. I have RF 7's and set my system to small and use a xo of 100 . MCACC set the xo based on the blend with the main and standing wave corrections. I have tried a xo of 80 but, no real difference. If a good sub is in the system, there really is not much rational for placing the xo below 60- 80 Hz in a HT setup even if it is also used for music.