JBL Control 312CS Ceiling Subwoofer , Install Speaker , New In Box , $10 Flat Fee Shipping

  • Sale
  • Regular price $149.00
  • 1 available

Offered for sale is one (1):
  • JBL Control 312CS Ceiling Subwoofer
  • High-Output 12 in. In-Ceiling Subwoofer Loudspeaker 
  • $10 FLAT FEE USA Shipping
  • 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.


Frequency Range (±3 dB)

34 Hz – 3.5 kHz

Sensitivity (1W, 1m)

99 dB in ceiling near corner, 93 dB in center of ceiling

Frequency Response (-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)


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


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 such as JBL MTC-300BB12. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.


Formed steel (wood-lined; accessory)


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 a

Clair Global is an Entertainment Technology company that supplies the entertainment and music touring industry with technology, sound augmentation systems and services.  We stay way ahead of the curve when it comes to purchasing and using new technology.  When we upgrade or purchase new gear we frequently end up with unneeded gear and it's this gear that you'll find here. 

If we don't need it, we sell it and guarantee your satisfaction with a 14-day replacement guarantee (or money- back guarantee if we don't have a replacement).

Applicable sales tax will be applied.
Unless otherwise noted, everything is in good working condition when it is shipped to you.