A lot of experimenting is called for! But why not start with them 8" or so closer to the listener than the speakers are, and flanking the speakers (on the outside), and toed in a bit more than the speakers themselves are. You could also try to contact the Argent people, locate your speakers for them, and ask them were they'd start out the Lenses.
I found that moving mine as little as an inch made for a considerable deterioration in the sound. (This was one of those "cleaning lady" occurrences except that we don't run to cleaning ladies chez moi--it was my wife's doing.)
I found that moving mine as little as an inch made for a considerable deterioration in the sound. (This was one of those "cleaning lady" occurrences except that we don't run to cleaning ladies chez moi--it was my wife's doing.)