JBL Control 12C-T Ceiling Mount Speaker 3" Compact Ceiling Loudspeaker for EN54-24 Applications • 76 mm (3 in) full-range driver EN54-24 Compliant Blind-mount backcan for quick and easy install Combined 70V/100V and low impedance direct operation • 20 Watts at 8 nominal setting • 15W multi-tap at 70V/100V 68 Hz – 17 kHz bandwidth with wide 130° coverage Preliminary Specifications: System: Frequency Range (-10 dB)1: 68 Hz – 17 kHz Frequency Response (±3 dB)1: 95 Hz – 15 kHz Power Capacity (at low-Z)2: 40 Watts Continuous Program Power 20 Watts Continuous Pink Noise Rated Noise Power: 15W (15W tap) Rated Noise Voltage: 70V/100V (with 70V/100V tap settings) Nominal Sensitivity3: 84 dB: 8 ohm tap EN54 Sensitivity (@ 4m)4 5: 72 dB (per EN54-24 spectrum and measurement conditions at 4 meters.) Coverage Pattern3: 130° conical coverage (1 kHz - 16 kHz) Coverage Angles (by Frequency): 500 Hz 1000 Hz 2000 Hz 4000 Hz Conical (Vertical & amp; Horizontal): 180° 175° 170° 160° Reference Axis4: Specification and measurement reference is directly on-axis vertically and horizontally, directly below the speaker as speaker it is installed in the horizontal ceiling plane Directivity Factor (Q)3: 9.8 Directivity Index (DI)3: 7.4 dB Rated Maximum SPL: 97 dB @ 1 m (3.3 ft) average, 103 dB peak EN54 Max SPL (@ 4m)4 5: 84 dB (per EN54-24 spectrum and measurement 15W tap, at 4 meters) Nominal Impedance: 8 ohms (in direct/bypass 8 setting) 1.9W@70V; 3.8W@100V Tap: 2667 3.8W@70V; 7.5W@100V Tap: 1333 7.5W@70V; 15W@100V Tap: 667 15W@70V; N/C@100V Tap: 333 Transformer Taps: 15W, 7.5W, 3.8W