Originally Posted by antisuck
The more I think about this stuff, the more I think that if you can't do something that approaches soffit mounting you are almost forced into a bass-managed system, and the closer your mains are to the front wall the higher you need to cross over to a modular woofer system of some kind. And those woofers darn well better be close to the front wall and close to the floor, with the tops delayed to match. Flanking subs, anybody? Dunno if Parham has ever talked about using delay, makes sense to me though.
corner mounting at ear level is the same as soffit mounting as far as boundary nulls go. For flanking corner woofers, top and bottom firing dual opposed woofers will play highest before showing a boundary null.
It didn't take much playing with REW's room sim to convince me I needed an absorber wall somewhere and the front wall works best for my room. (There went 1/3 of the boundary support for corner loading.) Speaking of Parham, note that his corner horns don't integrate with a front absorber wall but IMO use of a midhorn is compelling.
Once you have that absorber wall, you can sink your mains into it and remove some of your boundary nulls. You may find you can't get the mains far enough away from the corners so that they don't show side wall reflection nulls. If that is the case, then bring that absorber around the corner and up the wall or push the speakers into the corner.
I like the free thinking evident in your room/house design idea and I love the Synergy concept. If I had as much design freedom for the room as I do for the speakers in it, I'd have started construction already but, while my wife tolerates (reasonable sized) speakers and loves music, she hates construction projects. So I'm waiting for the right moment to bring up the subject...
Speaking of Synergy, a full range point source wouldn't be optimal for dealing with floor and ceiling bounce or room issues in general. I'm working towards a 3-way with a woofer and midhorn overlapped in the 100-200 hz region. (Not far above 200, the woofer starts showing a boundary null, which moves lower the larger I make the cabinet.) That could be done in a Synergy but a Synergy would be too much of a science project for me and perhaps not as good as SEOS above 1 Khz. My midhorn will be (at least that is the way it looks today
) conical with (2) offset drivers, like a Synergy and with most of its benefits, but the CD will go on a SEOS18. And this, I think, is the perfect usage model for the SEOS18 - crossed at 1Khz before it loses pattern control to a 24" wide midhorn to provide horizontal pattern control down below 400 Hz.
So yes I'm paralyzed by analysis but so far I've avoided a number of false tries