JBL CBT 1000 Constant Beamwidth Technology Adjustable Coverage Line Array Column (Black)Expanding upon the highly successful Constant Beamwidth Technology breakthrough, the CBT1000 represents the next generation in pattern control consistency utilizing adjustable vertical coverage and a tapered horizontal waveguide to increase the versatility of aiming the coverage of the loudspeaker to more accurately map to the room geometry in a wide variety of listening spaces. Features Asymmetrical vertical coverage sends more sound toward far area