"Omni's will also work if you can pull them far enough out into the room so that rear wall reflections do not have any deleterious imaging effects."
Good point. This is key!
Blue Circle Pennies are supposedly designed to go closer to walls.
OHM Walsh speakers are acoustically attentuated in the wall facing directions so this helps them go a bit closer (two to three feet I would say in some cases involving smaller rooms) than otherwise with true omnis like MBL for example. For larger rooms, you will generally want them out further. My biggest room is ~ 30 feet deep and the OHM 5's in that room are a good 48 inches or more out from the rear wall. Soundstage is huge (wall to wall for many recordings) and imaging is sharp and focused in most of the room situated about 6 feet or further back from the speaks or so.
Good point. This is key!
Blue Circle Pennies are supposedly designed to go closer to walls.
OHM Walsh speakers are acoustically attentuated in the wall facing directions so this helps them go a bit closer (two to three feet I would say in some cases involving smaller rooms) than otherwise with true omnis like MBL for example. For larger rooms, you will generally want them out further. My biggest room is ~ 30 feet deep and the OHM 5's in that room are a good 48 inches or more out from the rear wall. Soundstage is huge (wall to wall for many recordings) and imaging is sharp and focused in most of the room situated about 6 feet or further back from the speaks or so.