I have the Beolab 9 for many years. I was not always completely satisfied with them, even though they sounded mostly OK. I have tried many different configurations - close to the wall - far from the wall - point straight and so on. The problem was that either the treble was to sharp or the mid-range was missing. A problem that several members of the forum have expressed. Now I have found the ideal setup for my ears. They are now simply set up as shown in the Beolab 9 guide – close to wall and some toe-in. The speakers a away from corners, and on either side of a bookcase wall, which may be a kind of corner. Anyway the speakers are set to “corner”, and it gives the best balance in the sound. The sound image is accurate. If set to wall, the sound becomes slightly inaccurate. There are just little under 3 meters between the speakers, and the distance from each speaker to the preferred seat is approx. 4 meters.
Perhaps this is for the benefit of other Beolab 9 owners, and others may wish to come up with their experience for setting up Beolab 9.