bdp24, Martin Logans and Soundlabs speaker have wonderful high frequency dispersion characteristics. The larger multi panel Acoustats did also. 2+2s not so hot. If you use the speakers with subwoofers you can keep them as close to the wall as 2 feet. In any case you want to dampen the wall directly behind the speaker as it is the strongest primary reflection. With single panel speakers like the Sanders the high frequencies drop of fast off axis which heightens the sensation of a tight sweet spot but frankly even SoundLabs and Acoustats have a "tight" sweet spots. Because there is no midrange or high frequency cross over and the the entire spectrum (except the low bass with sub woofers) is coming from the same spot in space these speakers "image" the sweet spot and everything else much better than other speakers. In other words, the sweet spot is much easier to hear and when you are in it the image is holographic. This is always fun but in many cases not an advantage. It is highly unlikely that the engineer mixing the master was listening to speakers like these. You are more likely to hear what the engineer was hearing with dynamic speakers. With my Acoustats the image is frequently surrealistic. Like the drum set being wider than the whole band. Each piece is imaged in space perfectly except the floor toms are 20 feet away from the high hat. I've never seen a drummer with 10 foot arms. Live performances especially classical ones are usually right on as are older Jazz recordings.
