JBL CONTROL312CS 12" Ceiling Subwoofer

Manufacturer: JBL ProSku: CONTROL312CS
Special order only. Please contact us for shipping times.

Freight $10 per order to main centres.
+ extra $5 if Rural Delivery.

JBL CONTROL312CS 12" Ceiling Subwoofer.
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.

The 300 mm (12 inch) driver features a Kevlar-reinforced low frequency cone for reliability, well-damped surround, extended excursion capability, high temperature 75 mm (3 in) voicecoil and reduced distortion through saturatedgap magnet geometry.

The Control 312CS is easy to install. The innovative EZRail™ feature built into the metal baffle temporarily holds one side of the speaker baffle in place until the installer can affix the baffle to the backcan with screws. The removable multi-pin locking connector, with secure screw-down terminals, allows for pre-wiring the input wires for easy clip-on convenience during installation.

The clean, contemporary look of the optional MTC-300SG12 square grille is designed to suit high-end venues, offering a simple, elegant appearance that fits into a wide variety of décors.

The optional, best-in-class, MTC-300BB12 three cubic foot backcan is made of extra-thick 16 gauge steel and lined with 12 mm (1/2 in) medium density fiberboard. This provides the performance of a top quality wood loudspeaker cabinet in a metal backbox form factor.

Control 312CS is intended for systems utilizing an external active subwoofer crossover and separate amplifier channel for the subwoofer loudspeaker(s).

To ensure long life and reliability, Control 312CS passes JBL’s 100-hour torture power test. Nobody in the industry has more demanding reliability standards.


  • 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 backbox available.
  • System:
  • Frequency Response (-10 dB): 30 Hz – 4.5 kHz
  • Frequency Range (±3 dB): 34 Hz – 3.5 kHz
  • Long-Term System Power Rating, AES:
    400 W (1000 W peak), 2 hrs
    250 W (600 W peak), 100 hrs
  • Sensitivity (2.83V@ 1m): 93 dB measured half-space
  • Maximum SPL: 121 dB cont ave (124 dB peak)
  • Nominal Impedance: 8 ohms
  • Transducers:
  • Driver: Kevlar reinforced cone, 75 mm (3 in) voice coil.
  • Physical:
  • Input Connector: Removable locking connector with screw-down terminals.
    Max wire 12 AWG (2.5 mm2)
    1) + in
    2) + loop through
    3) – loop through
    4) – in
  • Baffle: Metal, 366 x 366 mm (14.4 x 14.4 in), driver pre-mounted to baffle, ported, EZRail™ for easier installation to backbox.
  • Baffle Attachment to MTC-300BB12 Backbox: Attach via either 4 corner holes M4 x 14 mm machine screws, or 6 side holes #10 x 0.75 in (19 mm) sheet metal screws.
  • Grille Attachment to Baffle: 4 pcs 4 mm machine screws in corners.
  • Dimensions (H x W x D): 366 x 366 mm (14.4 x 14.4 in) square baffle x 160 mm (6.3 in) depth from back of baffle.
  • Net Weight: 17.0 lb/7.7 kg
  • Shipping Weight: 18.5 lb /8.4 kg
  • Included Accessories: Ported baffle pre-attached.
  • Optional Accessories:
    MTC-300SG12 Grille, square contoured, white.
    MTC-300BB12 Backbox, 80 liters (3 cubic feet)

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