Waryn,
The wall construction that I described was from the HT room in my former home. Those walls were, unavoidably, parallel. However, that formulation can be done at reasonable cost (depending on the materials chosen) and it sounds and looks great. It's even better visually for in-wall speakers. If you want to consider double duty for 2ch/HT use (main L/R on the floor, center/ back/sides/subs in-wall), I'd probably do it that way even if the walls weren't parallel. For a strictly 2 channel room with non-parallel walls, maybe it's overkill.
Marty
The wall construction that I described was from the HT room in my former home. Those walls were, unavoidably, parallel. However, that formulation can be done at reasonable cost (depending on the materials chosen) and it sounds and looks great. It's even better visually for in-wall speakers. If you want to consider double duty for 2ch/HT use (main L/R on the floor, center/ back/sides/subs in-wall), I'd probably do it that way even if the walls weren't parallel. For a strictly 2 channel room with non-parallel walls, maybe it's overkill.
Marty