The Control 312CS is a 12-inch in-ceiling subwoofer loudspeaker designed to extend low-frequency response when used in conjunction with JBL Control 321, 322, and 328 loudspeaker systems or other full-range loudspeaker systems. It is engineered to provide additional bass output within ceiling-mounted audio installations.

• Kevlar-reinforced 300 mm (12 inch) subwoofer driver with 75 mm (3 inch) voice coil
• High power handling of 400 Watts with high sensitivity for high SPL capability

Frequency Range (±3 dB)	34 Hz – 3.5 kHz
Sensitivity	99 dB in ceiling near corner, 93 dB in center of ceiling
Frequency Range (-10 dB)	30 Hz – 4.5 kHz
Maximum SPL (1m)	125 dB low-impedance, 131 dB peak center of ceiling
Impedance	8 ohms
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
Safety Agency	Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan; UL listed signaling speaker; Transformer UL registered per UL1876; In accordance with IEC60849/EN60849
Coverage Angle	Omnidirectional