Constant-Directivity CRT36 Speaker
Provides broadband constant-directivity, beamwidth and coverage.
Pattern is independent of frequency and distance!
Requires no DSP, frequency-independent level shading only!
No nearfield! Simple to implement!
CBT arrays are revolutionary!
The CBT line-array concept dictates that multiple loudspeakers be evenly placed around a circular arc.
CBT is a term originated by the U.S. military in a series of un-classified Naval Research Lab ASA papers published in the late 70s and early 80s.
Keele applied the technology to loudspeaker arrays in a series of five AES papers between 2000 and 2005 and some of the technology is now in the public domain.
Keele has been an ardent advocate and evangelist for the CBT concepts for over ten years and believes the CBT know-how can vastly improve the sound field uniformity of existing line arrays and conventional loudspeaker systems.http://www.xlrtechs.com/dbkeele.com/CBT.php