JBL Control 312CS 12" In-ceiling subwoofer
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
Clean, contemporary grille and
optional backbox available.
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
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
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 (˝ in) medium
density fiberboard. This provides the
performance of a top quality wood
loudspeaker cabinet in a metal backbox
Control 312CS is intended for
systems utilizing an external active
subwoofer crossover and separate
amplifier channel for the subwoofer
To ensure long life and reliability,
Control 312CS passes JBL’s 100-hour
torture power test. Nobody in the
industry has more demanding reliability
Frequency Response (-10 dB)1: 30 Hz – 4.5 kHz
Frequency Range (±3 dB)1: 34 Hz – 3.5 kHz
Long-Term System Power Rating, AES2: 400 W (1000 W peak), 2 hrs
250 W (600 W peak), 100 hrs
Sensitivity (2.83V@ 1m): 93 dB3 measured half-space
Maximum SPL4: 121 dB cont ave (124 dB peak)
Nominal Impedance: 8 ohms
Driver: Kevlar reinforced cone, 75 mm (3 in) voice
Input Connector: Removable locking connector with screw-down
Max wire 12 AWG (2.5 mm2)
1) + in
2) + loop through
3) – loop through
4) – in
Safety Agency Rating: Suitable for use in air handling spaces, per
U.L.-2043, U.L. 1480, NFPA90 & NFPA70A.
In accordance with IEC60849 / EN60849.
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 Attach via either 4 corner holes M4 x 14 mm
MTC-300BB12 Backbox: 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)