We haven't discussed this in a while. Any comments about this type of line array as exemplified in Roger Russell's IDS-25. I'm especially interested in his comments about the lack of an audible comb filter effect.
http://www.roger-russell.com/columns/combfilter2.htmMy own experience when I heard these speakers was the same as his, but I did hear some attenuation of the highest frequencies which caused peercussve effects to lose some of their "sparkle". However, this is the same effect I hear when listening to any full range single driver speaker.