DocumentsDatasheet, english 2 pages, 3 MBMatching Products JBL Control 312CS12" subwoofer with 400 watts and 92 dB SPL for installation in ceilings over 5 m high. JBL Control 321CCeiling loudspeaker with 12"/1" equipment, coaxial, 250 Watt, 94 dB SPL and 90° dispersion angle for installation in ceilings above 5 m height. JBL Control 322CCeiling loudspeaker with 12"/1" equipment, coaxial, 400 Watt, 95 dB SPL and 90° dispersion angle for installation in ceilings above 5 m height.