All speakers with a narrow baffle produce this effect. If you close your eyes and listen to music, you can hardly locate them.
Scaena has rounded all the edges of the housing, which ensures a linear frequency response at the listening position. Very cleverly built. Sharp housing edges ensure jagged frequency response, lots of valleys and peaks in the frequency response.
But this speaker is not an open baffle, because each driver of the line array is in an enclosed housing.
Unfortunately, the good radiation from the dipole, which stimulates little room modes, is wasted.
Dipole radiation at the front like a lobe, and at the rear 180 degrees out of phase. Laterally on the speaker axis they generate 0dB sound pressure.
Normal loudspeaker with housing, you can see the advantage of the dipole. In the bass, no spherical waves radiate into the room (fewer room modes). But there is always the other side of the coin. To achieve very deep bass with a dipole (open baffle), you need large drivers, because the signals are in anti-phase and less room modes Sound pressure is removed. If you calculate it correctly you will get very precise bass that will give you a lot of pleasure.
