
Control®26CT-LS
Professional Series
Key Features:
䉴 UL1480 UUMW Listed for use in Fire Alarm
and/or Emergency Communication 
Systems.
䉴 Coaxially mounted 165 mm (6.5 in) woofer
with butyl rubber surround and 19 mm 
(¾ in) titanium coated diffraction-loaded 
tweeter
䉴 High power, wide frequency response and
low distortion for high sound level 
capability
䉴 Packaged with grille, backcan and tile rails
for fast installation and easy dealer stocking
The Control®26CT-LS is built on the same 
platform as our popular Control 26C and 
26CT ceiling loudspeakers and is UL1480 
UUMW Listed for use in fire alarm and/or 
emergency communication systems.
The Control 26CT-LS is a compact ceiling 
speaker providing premium performance in 
background or foreground music sound 
systems. The Control 26CT-LS is perfectly 
suited for a wide variety of applications from 
casinos and hotels to upscale restaurants and 
themed locations. High power handling, wide 
frequency response and low distortion make 
the Control 26CT-LS ideal for sound systems 
requiring a higher fidelity sound from ceiling 
loudspeakers. The premium performance 
capability ensures excellent sound character, 
providing pleasant, enveloping sound 
throughout the listening area.
The computer-optimized enclosure delivers 
warm, smooth bass response. Low frequency 
output can be further augmented with the 
addition of one of the Control Contractor 
subwoofer models.
The 165 mm (6.5 in) woofer features a 
polyurethane-coated cone and pure butylrubber surround for long life, even in high 
humidity environments. An aluminum voice 
coil former provides extra cooling for greater 
long-term power handling.
The coaxially mounted 19 mm (¾ in) 
titanium coated tweeter provides crisp, clear 
highs. Diffraction-loading of the tweeter 
provides wide, even coverage of the listening 
area.
Professional Ceiling 
Loudspeaker for 
Life/Safety Applications
Specifications:
System:
Transducers:
Physical:
Outside Dimensions (H x Dia): 210 x 252 mm (8.3 x 9.9 in)
1
Half-space (flush mounted in ceiling)
2
Continuous Pink Noise rating is IEC-shaped pink noise with a 6 dB crest factor for 100 hours continuously. 
Continuous Program power is a conservative expression of the system’s ability to handle normal speech and music 
program material and is defined as 3 dB above the Continuous Pink Noise Rating.
3
Half-space (in ceiling), average 100 Hz to 10 kHz
4
500 Hz to 4 kHz, average.
JBL continually engages in research related to product improvement. Changes introduced into existing products 
without notice are an expression of that philosophy.
Freq. Range (-10 dB)1: 80 Hz - 20 kHz
Power Capacity2: 150 Watts Continuous Program Power
Nominal Sensitivity3: 89 dB SPL, 1W @ 1 m (3.3 ft)
Nominal Coverage Angle4: 110° conical coverage
Directivity Factor (Q): 5.9 averaged 500 Hz to 4 kHz
Directivity Index (DI): 4.6 averaged 500 Hz to 4 kHz
Rated Maximum SPL: 107 dB @ 1 m (3.3 ft)
Transformer Insertion Loss: Less than 0.8 dB
Transformer Taps: 070V: 60W, 30W, 15W & 7.5W taps
Low-Frequency: 165 mm (6.5 in) Polypropylene-coated,
High-Frequency: 19 mm (¾ in) Titanium coated polyester
Enclosure: Backcan: Formed steel
Termination: Removable locking connector with screw-down
Safety Agency Rating: UL1480 UUMW listed. 
Cutout Size: 220 mm (8.75 in)
Net Weight (ea): 4.2 kg (10 lb)
Shipping Weight (pair): 9.7 kg (21 lb)
Included Accessories: C-shaped support backing plate
75 Watts Continuous Pink Noise
100V: 60W, 30W, & 15W taps
1" coil on aluminum former
Baffle/Rim: Medium impact polystyrene, fire rated 
UL94V-0
terminals. 2 input terminals and 2 loop-thru output 
terminals. Max. wire 12 AWG (2.5 mm2)
spaces per UL1480, UEAY, UL2043, NFPA90 & NFPA 70. 
S7232/UL Listed, Signaling Speaker. Transformer UL 
registered per UL1876. In accordance with 
IEC60849/EN60849.
190 mm (7.5 in) front of ceiling tile to back of 
backcan
2 tile support rails (fits both 2 x 4 ft or 
Cutout template 
Paint shield 
Removable locking wiring connector – Euroblock
Suitable for use in air handling
600 x 1200 mm tiles)
 

䉴 Control®26CT-LS Ceiling Loudspeaker for Life/Safety Applications
Input connection is conveniently provided on a removable 
locking connector (included), providing secure connection via 
screwdown terminals and allowing a system to be prewired before
Frequency response is measured on-axis with at a distance 
referenced to 1 meter at 1-watt.Shown as a half-space (2) 
environment.
installing the speaker for fast snap-on convenience. Separate 
connector terminals are available for the input and for the loopthrough 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 ½ 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 26CT-LS is quick and easy. The 
loudspeaker is packaged complete with the backcan, grille, support 
backing bracket and tile rails.
Off Axis Frequency Response (1/3 Oct Avg)
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 26CT-LS backcan is made of formed steel. 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 Control 26CT-LS includes a 60W multitap transformer 
for use in either 70.7V or 100V distributed-line systems. Taps are 
selected with a rotary switch conveniently located on the front 
panel, but protected under the grille, so that the speaker does not 
have to be removed to adjust tap settings.
All JBL Control Contractor loudspeakers - both ceiling speakers 
and surface-mount models - are designed with a similar sonic 
signature, allowing for mixing and matching of the various models 
within an application, providing a similar tonal character 
throughout the entire listening area.
Safety and Regulatory Information:
The Control 26CT-LS has passed extensive testing and is in
compliance with the following specifications and uses:
• Listed UL1480, category UUMW. For use with non-DC supervised
systems.
• General Purpose Use Listed UL1480, Category UEAY
• Control 26CT-LS is suitable for use indoors in damp or dry 
locations
• Suitable for installation using Class 1, Class 2 or Class 3 wiring 
methods in accordance with NFPA 70, National Electric Code, 
2002, Article 640, and with NFPA 72 for use with non-DC 
supervised control panels / amplifiers.
• Suitable with fire alarm circuit wiring methods in accordance 
with NFPA 70, National Electric Code, 2002, Article 760, and with 
NFPA 72 for use with non-DC supervised control panels / 
amplifiers.
• EMC Directive 89/336/EEC and Article 10 (1) of the directive 
EN50081-1 and EN50082-1
• Tested to IEC 60268-5
Measured audibility for the Control 26CT-LS at 10 feet (3.1 meters) 
is:
Tap Sound Pressure Level dB(A)
70V, 7.5W 82 dB
70V, 15W 85 dB 
70V, 30W 88 dB
70V, 60W 90 dB 
100V, 15W 85 dB 
100V, 30W 88 dB 
100V, 60W 90 dB
 

䉴 Control®26CT-LS Ceiling Loudspeaker for Life/Safety Applications
Architectural Specifications:
The loudspeaker shall be of in-ceiling design, consisting of a 165 mm (6.5 in) low frequency transducer, a coaxially-mounted 19 mm (¾ in) high frequency transducer, and 
frequency dividing network installed in a ported enclosure. The low frequency voice coil shall be 25 mm (1 in) in diameter and the coil former shall be of aluminum for 
maximum heat dissipation.
Performance specifications of a typical production unit shall be as follows: Measured sensitivity (SPL at 1m [3.3 ft] with 4V input, averaged from 100 Hz to 10 kHz) shall be 
at least 89 dB-SPL. Usable frequency response shall extend from 80 Hz to 20 kHz (10 dB below rated sensitivity in half-space) with no external equalization. 
The high frequency transducer shall be horn-loaded to more evenly cover an average 110° polar conical coverage area. (ave 500 Hz to 4 kHz)
The backcan shall be constructed of formed steel and the baffle of UL94V-0 fire rated medium impact polystyrene. An enclosed terminal box shall be included proving 
strain relief for use with either plenum-rated wire, ½ in (13 mm inside diameter) conduit, or flexible conduit up to 22 mm (⅞ in) outside diameter. The external wiring shall 
be accomplished via a removable lockable wiring connector with screw-down terminals to provide both secure wire termination and prewiring capability before loudspeaker 
installation. An attachment loop shall be provided on the back panel for cabling to building structure as a secondary support point.
The system shall include a support backing plate to reinforce the ceiling material and tile support rails for use on either 2 x 4 ft or 600 x 1200 mm suspended ceiling tiles 
and which can all be installed from beneath the ceiling tile.
Overall front face diameter shall not exceed 252 mm (9.9 in), overall depth from the bottom of the ceiling shall not exceed 190 mm (7.5 in), and shall weigh no more than
4.2 kg (10 lb).
The loudspeaker shall be equipped with transformer for use in either 70.7 or 
100V distributed-line speaker systems, with taps selectable by rotary switch located 
on the front panel so that the speaker does not have to be removed to adjust tap 
settings. Taps shall be nominally 60W @ 70V, 30W @ 70V (60W @ 100V), 15W@ 
70V (30W @ 100V), and 7.5W @70V (15W @ 100V).
The loudspeaker shall be UL certified under UL1480 UUMW for use in fire alarm 
systems and shall also be certified under UL2043. The transformer shall be UL 
registered under UL1876.
The loudspeaker shall be the JBL Model Control 26CT-LS.
Dimensions in inches (mm)
JBL Professional 
8500 Balboa Boulevard, P.O. Box 2200 
Northridge, California 91329 U.S.A.
© Copyright 2010 JBL Professional
wwwwww..jjbbllpprroo..ccoomm
SS Control 26CT-LS 
CRP 
11/10