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The JBL Control 321CT is a coaxial point source design ceiling loudspeaker, equipped with a built-in 70V/100V multi-tap transformer, and featuring a 12" low frequency cone performing as a waveguide for the high frequencies. The unique metal throat provides seamless transition to the horn, eliminating any aberrant HF "beaming", and resulting in consistent 90° coverage on a broadband basis with true coaxial behavior.
Coaxial ceiling speaker with 1" HF compression driver and consistent 90° broadband pattern control