Looking at the Newport link you provided, the hotel room was about
13' x 17-20' deep. If the 8Cs caused some mayhem in that room, I'm sure they will do just fine in mine. The room I am trying to plan out for a new home theater is about 11' wide x 12' deep x 9-10' high. I realize that a room that is a perfect square or close to a square is not ideal for audio but I really don't have any other choice. While I am excited for 8ST, I think I'll have to stick with the 8C as I intend to get 2 SubMersive HPi+s and 2 HP-Slaves and place the front left/right and surround left/right 8Cs on top of them (a pair of subwoofers up front and a pear at the back/rear) as I have no other place to locate the subwoofers. The center 8C will be placed on a stand or A/V shelf/rack. Basically, I'm planning a 5.1.4 (but really a 5.4.4). The 4 ceiling speakers will most likely be the updated Spark with external amplification (if that will be an option). By the way, any estimates on a max continuous and peak SPL capabilities of the 8C? Maximum numbers are messy as few understand what they mean and you can give a few different numbers that all have valid meaning but none of which tell the whole story... Pick which one makes you feel best, or learn the differences and how they relate to real use.
1m sine wave limitations on the low end give a worst case limit of around 115dB, but boundaries and acoustics boost this range in-room. 1m maximum single frequency is more than 122dB @ 1m (+3dB peak). 1m music/pink noise type output from 1 speaker would be 120-126dB depending on exact criteria. This is where the tri-amplification of the Catalyst 8C really gives an advantage over a passive design when producing a wide spectrum of sound (ie most movie and music content). Some manufacturers like to quote the 1m maximum music output from a pair of speakers which could easily be 126-129dB.
Seaton Sound, Inc. firstname.lastname@example.org 773-290-8436