JBL High-Power 12” Coax Ceiling Loudpeaker with Medium Format Compression Driver. True BroaдБand 90º Coverage. 400 Watts, 32 Hz to 20 kHz Frequency Response, 95 дБ Sensitivity. 2407H Compression Driver. 14.4” Square Ported Baffle x 8.8” Deep. EZ-Rail for Ease of Installation. UL LISTED