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