The Control 19CS uses advanced proprietary
technologies to produce powerful bass from a low profile
in-ceiling design. The Control 19CS is perfectly suited to
augment the low frequency output of any of the Control
Contractor loudspeakers. High power handling and low
distortion make the Control 19CS an ideal addition for
sound systems requiring a higher fidelity sound from
ceiling loudspeakers.
The unique Nested Chamber design delivers high output
from a compact enclosure, while the acoustic lowpass
character of this design means it is easy to augment a
full-range sound system without an external crossover
or separate amp channel. The Linear Dynamics™ port
design originally developed for JBL’s concert speaker
systems, produces extended deep bass output.
The Control 19CS is protected from overload damage
by JBL’s exclusive SonicGuard™ circuitry, a protection
system that is inaudible to the listener, ensuring
reliability while providing full-fidelity sound. The
premium performance capability ensures excellent
sound character, providing pleasant, enveloping sound
throughout the listening area.
The 200 mm (8 in) transducer features a pure butyl
rubber surround for extended life and long excursion
capability. The pole piece is vented for low distortion.
The Control 19CS can be connected into a system in
a number of configurations: In parallel with full-range
speakers resulting in a bass-overlap configuration
(which is often acceptable); with an electronic crossover
and separate amplifier channel, or; In conjunction with
an active or passive high-pass filter on the full-range
speakers, thus taking advantage of the Control 19CS’s
natural acoustic low-pass character.

nput connection is conveniently provided on a removable locking
connector (included), providing secure connection via screw-down
terminals and allowing a system to be prewired before installing the
speaker for fast snap-on convenience. Separate connector terminals
are available for the input and for the loop-through wires, making it
easy to jumper the speaker signal to additional speakers. The input
terminal plate provides strain relief for either bare wire, plenum
cable or 1/2-inch conduit (12 mm I.D.). The terminal box is securely
enclosed to meet safety codes.
The speaker trim and grille are paintable to match any decor. A paint
shield is provided for covering the drivers while painting the rim.
Installation of the Control 19CS is quick and easy. The loudspeaker
is packaged complete with the backcan, grille, support backing
bracket and tile rails.
The entire installation can be accomplished without requiring access
above the ceiling. A template is provided for marking the cutout. An
innovative C-shaped support backing plate can be installed from
below through the cutout to reinforce the top of the ceiling material.
Tile bridge rails are included which can be screwed onto the
C-plate to extend support to the T-channel grid in suspended ceiling
installations. After the speaker is fitted through the cutout, it is held
securely in place via three mounting tabs which tighten onto the
C-plate, if used, or directly onto the ceiling material.
The Control 19CS backcan is made of formed steel and the
speaker is suitable for use in air handling spaces, per U.L.-2043.
An attachment loop is provided on the backcan for cabling to the
building structure as a secondary support in seismic areas or where
required by code.
The optional Control 19CST version includes a high quality multitap
transformer designed specifically for subwoofer use in either 70.7V
or 100V distributed-line systems. Multiple transformer taps at 75W,
30W and 15W (plus 7.5W at 70.7V) allow the Control 19CST to fit
a wide variety of listening situations. Taps are selected with a rotary
switch conveniently located on the front panel, protected under the
grille, so that the speaker does not have to be removed to adjust tap
settings. The transformer effectively limits the power to the speaker,
so SonicGuard is not included in the Control 19CST.