JBL CBT70J-1 High-Power J-Shaped Column Array SpeakerThe JBL CBT 70J 1, with Constant Beamwidth Technology, represents a breakthrough in pattern control consistency, utilizing complex analog delay beam forming and amplitude tapering to accomplish superior, consistent vertical coverage without the narrow vertical beaming and out of coverage lobing that are typical of straight form factor column speakers. The CBT 70J 1 combines Constant Beamwidth Technology with a physical J shaped curving, resulting in a