JBL CONTROL 227C - 6" CEILING SPEAKER ON A BAFFLE 6.5? Coax Ceiling Loudspeaker with Compression Driver. Broadband 120§ Coverage. 150 Watts, 43 Hz to 19kHz Frequency Response, 90 dB Sensitivity. 1? Exit Compression Driver. 8 ohms. 12? Round Ported
Amazon.com: JBL Professional D450TRIO 2-inch 600 Watts Peak Power Driver 300 Watts Rms High Sensitivity and Low Distortion Drivers with a Dome-Type Phenolic Diaphragm : Electronics