The JBL Control 312CS is a 12” high-output in-ceiling subwoofer that pairs with the Control 321, 322, and 328 for a full-range system with extended bass response. From the Manufacturer: Control 312CS is an excellent addition to JBL Control 321, 322 and 328 loudspeaker systems, or any fullrange loudspeaker system that requires extended bass response. Features: Kevlar-reinforced 300 mm (12 inch) subwoofer driver woofer with 75 mm (3 inch) voice-coil. High power handling of 400 Watts with high sensitivity provides high SPL capability. Clean, contemporary grille and optional back box available. Specifications: Frequency Range (±3 dB): 34 Hz – 3.5 kHz Sensitivity: 99 dB in ceiling near corner, 93 dB in center of ceiling Frequency Range (-10dB): 30 Hz – 4.5 kHz Maximum SPL (1m): 125 dB (low-impedance, 131 dB peak, center of ceiling) 119 dB (low-impedance, 125 dB peak near corner) 121 dB (optional MTC-300T150 70V/100V transformer, center of ceiling) 114 dB (optional MTC-300T150 70V/100V transformer, near corner) Impedance: 8 ohms Power Rating: AES Long-Term System Power Rating: 400 W continuous pink noise (1000 W peak), 2 hrs 250 W continuous pink noise (600 W peak), 100 hrs Input Connectors: Screw locking barrier strip for bare wire Drivers: 300 mm (12 in) subwoofer Color: White Safety Agency: Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan such as JBL MTC-300BB12. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849. Backcan: formed steel (wood-lined; accessory) Baffle/Rim: Metal, driver pre-mounted to baffle, ported. Ceiling Cutout Size: 378 x 378 mm (14.9 x 14.9 in) (for MTC-300BB12 backcan) Included Accessories: Ported baffle pre-attached. Optional Accessories: MTC-300SG12 Grille, square contoured, white. MTC-300BB12 Backbox, 80 liters (3 cubic feet) Plenum Usage: Yes, with accessory backcan Coverage Angle: Omnidirectional
