Concerning "and other related questions". In short, how much air do I need around an X-Voce?
As the X-Voce is open baffle for mids and highs and sealed for the base I am hoping to place it on top of a cabinet that is beneath a large flat screen. This would limit air movement underneath but not on top. Another option is I could mount it inside a cabinet, which I assume is a bad idea as this would be like placing it in a box. But what if the cabinet had say 3" internal clearance above the X-Voce, and was open front and back. This would allow me to place a TV on it's feet directly on the cabinet. I could even place other components above, narrow ones between the TV feet that allow the center speaker to be as close as practical to the TV.
Perhaps another option is have the flat screen TV sit directly on top of the X-Voce so that it fits between the feet. This would require say 5" high blocks beneath the TV's feet, as the X-Voce is 8.5" tall. With the face of the TC set back say 3" from the face of the X-Voce, would this allow enough air movement.
Perhaps this is something I can experiment with using listening and perhaps measurements?