"I've read some comments that they need at least 6 feet between them to provide the kind of soundstage size they are capable of."
I don't think that is necessarily the case.
I've had my F5s as close as 4-5 feet apart and the soundstage extended from wall to wall, ~3 feet to the right and 12' to the left in my L shaped room (see my system pic) when I sit close enough to have a clear line of sight to the far left rear wall. If I sit further back, the soundstage is correspondingly narrower, depending on line of sight to the left rear wall.
Also, in my small 12X12 room, currently my Walsh 2s (100s) are a good 8-9 feet apart and at an oblique angle with the rear wall (due to tight quarters) and this also produces a soundstage from corner to corner along the rear wall.
I have found they actually work very well in tough rooms, with careful attention to placement and related system factors.
I don't think that is necessarily the case.
I've had my F5s as close as 4-5 feet apart and the soundstage extended from wall to wall, ~3 feet to the right and 12' to the left in my L shaped room (see my system pic) when I sit close enough to have a clear line of sight to the far left rear wall. If I sit further back, the soundstage is correspondingly narrower, depending on line of sight to the left rear wall.
Also, in my small 12X12 room, currently my Walsh 2s (100s) are a good 8-9 feet apart and at an oblique angle with the rear wall (due to tight quarters) and this also produces a soundstage from corner to corner along the rear wall.
I have found they actually work very well in tough rooms, with careful attention to placement and related system factors.