JBL Professional Control 24CT-BK

Larger Images

Background/Foreground Ceiling Speaker

The Control 24CT-BK is a compact ceiling speaker providing premium performance in background, foreground and music-pluspaging sound systems. The Control 24CT-BK is perfectly suited for a wide variety of applications from professional offices and airports to restaurants and specialty retail stores. High power handling, wide frequency response and low distortion make the Control 24CT-BK 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.

Features

Coaxially mounted 100 mm (4 in) woofer with butyl rubber surround and 19 mm (¾ in) titanium coated diffraction-loaded tweeter
High power, wide frequency response and low distortion for high sound level capability
Wide coverage allows fewer speakers, reducing the cost of the installed sound system without
sacrificing performance
Packaged with grille, backcan and tile rails for fast installation and easy dealer stocking
Black baffle and grille works well in black and dark ceiling

Downloads

Data Sheets

	Version	Size	Uploaded
Control 24CT-BK Spec Sheet version B, updated: Oct 2020	B	516 KB	Oct 2020

Manuals

	Size	Uploaded
MTC-TCD Thick-Ceiling Dogear updated: Oct 2019	41.7 KB	Oct 2019

Brochures

	Version	Language	Size	Uploaded
Control Contractor Brochure (2025) version A, updated: Mar 2026	A		23 MB	Mar 2026
Control Contractor Brochure (2026) updated: Mar 2026			21 MB	Mar 2026

CAD Drawings

	Size	Uploaded
Control Contractor Ceiling Speakers 3D Drawing updated: Oct 2020	3.42 MB	Oct 2020
Control Surface Mount 2D Drawings updated: Oct 2020	674 KB	Oct 2020

Compliances

	Size	Uploaded
JBL Control Series Passive Speakers DoC updated: Dec 2019	179 KB	Dec 2019

Simulation Data

	Version	Size	Uploaded
JBL Pro ALL CLF Files version 12-10-21, updated: May 2023	12-10-21	24 MB	May 2023

Owner's Manuals

	Size	Uploaded
Control Contractor Ceiling Loudspeakers Owner’s Manual updated: Oct 2020	386 KB	Oct 2020

Accessories

	Size	Uploaded
MTC-CS-Teth1 Press-In Grille Safety Tether updated: Sep 2021	204 KB	Sep 2021

Install Guides

	Size	Uploaded
Guide to Business Music updated: Oct 2020	52.4 KB	Oct 2020
CC Ceiling Speakers: Myth versus Reality updated: Oct 2020	23.9 KB	Oct 2020

Images

	Size	Uploaded
Control 24CT-BK Hi-Res Image updated: Oct 2020	383 KB	Oct 2020

If any of the links above result in strange characters in your browser, please right-click the file to save it to your computer.

Parts & Service

Specifications

Frequency Range	80 Hz - 20 kHz
Power Rating	See transformer taps
Transformer Taps	70V: 30W, 15W, 7.5W (& 3.7W @ 70V)
Coverage Angle	130° conical
Directivity Factor (Q)	2.4 dB averaged 500 Hz to 4 kHz
Directivity Index (DI)	3.8 dB averaged 500 Hz to 4 kHz
Maximum SPL (1m)	102 dB (top 70V/100V tap)
Nominal Impedance	16 ohms (Min Z 16.1 ohms @ 320 Hz)
Sensitivity	86 dB (100 Hz - 10 kHz)
Input Connectors	Removable 4-pin locking connector with screw-down terminals.
Drivers	LF Driver: 100 mm (4.0 in) HF Driver: 19 mm (0.75 in)
Color	Black
Safety Agency	Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.
Backcan	formed steel (included "blind-mount")
Baffle/Rim	Medium impact polystyrene, fire rated UL94V-0
Ceiling Cutout Size	168 mm (6.6 in) diameter (cardboard cutout template included)
Included Accessories	C-shaped support backing plate 2 tile support rails (fits both 2 x 4 ft or 600 x 1200 mm tiles) Cutout template Paint shield Removable locking wiring connector
Plenum Usage	Yes, backcan included