Owner's Manual

Control
®
24C/CT Micro
Professional Series – Background Music Ceiling Speaker
SPECSHEET
Key Features:
• Extremely wide 150° coverage
• Smooth frequency response
• Components:
• 4.5 inch (115 mm) woofer, injection molded graphite cone with butyl rubber surround
• 0.5 inch (12 mm) polycarbonate tweeter for extended response
• Control 24C Micro is 8 ohms and handles 15W
• Control 24CT Micro includes 9W multi-tap transformer for 70V/100V systems
• Shallow 4-inch (100 mm) depth
• Packaged with grille, backcan and tile rails for fast installation and easy dealer stocking
Description:
The Control 24C Micro and Control 24CT Micro are compact in-ceiling
speakers, providing full, high quality sound for background music and
music-plus-paging systems. These speakers are ideally suited for a wide
variety of applications, from restaurants and specialty retail stores to
professional offices and airports. Low distortion and a smooth, natural
frequency response make the Control 24C/CT Micro ideal for medium
volume business music systems as well as for the medium to low SPL
segments of larger or louder systems. Low frequency output can be
augmented with the addition of one of the Control Contractor subwoofer
models. Similar mid/high frequency voicing to other JBL Control
Contractor loudspeakers can, in many systems, allow for mixing and
matching of models within zones without requiring separate equalization.
Installation of the Control 24C/CT Micro is quick and easy. The
loudspeaker is packaged with the backcan, grille, support backing
bracket and tile rails. In addition, optional new construction brackets are
available. 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 mounting tabs which tighten onto the C-plate, if used, or directly onto
the ceiling material.
The Control 24C/CT Micro backcan is made of formed steel and the
speaker is suitable for use in air handling spaces per UL2043. An
attachment loop is provided on the backcan for cabling. A seismic tab
is provided as a secondary support. The Control 24C/CT Micro trim and
baffle are paintable to match any decor.
Specifications:
System
Frequency Range
1
85 Hz – 25 kHz
Power Capacity
2
(24C Micro)
30W Continuous Program Power
15W Continuous Pink Noise
Nominal Sensitivity
3
86 dB SPL @ 1 m (3.3 ft)
Crossover Frequency 3.5 kHz
Rated Maximum SPL Control 24C Micro: 98 dB @ 1 m (3.3 ft)
Control 24CT Micro: 94 dB @ 1 m (3.3 ft), 9W tap
Nominal Impedance
(24C Micro)
7.1 ohms
Transformer Taps
(24CT Micro)
70V: 9W, 4W, 2W, 1W & 0.5W taps
100V: 9W, 4W, 2W, 1W taps
Transducers
Low Frequency 115 mm (4.5 in) IMG (injection molded graphite), 24
mm (1 in) voicecoil
High Frequency 12 mm (0.5 in) polycarbonate
Physical
Enclosure Backcan : Formed steel
Baffle/Rim: Medium impact polystyrene, fire rated
UL94V-O
Secondary Attachment Point: Included
Termination Screw-down terminals, touch-proof, UL, CE and VDE
rated, outside of backcan
Safety Agency Rating 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
Outside Dimensions
(H x Dia)
106 x 195 mm (4.2 x 7.7 in)
105 mm (4.1 in) front of ceiling tile to back of the
backcan
Cutout Size 167 mm (6.6 in)
Net Weight (each) 24C Micro: 1.6 kg (3.6 lb)
24CT Micro: 2.0 kg (4.4 lb)
Shipping Weight (pair) 24C Micro: 3.6 kg (7.9 lb)
24CT Micro: 4.4 kg (9.7 lb)
Included Accessories » C-shaped support backing plate 2 tile support rails
(fits both 2 ft and 600 mm tiles)
» Cutout template
Optional Accessories » MTC-24TR trim ring for retrofit installations
» MTC-24NC optional new construction bracket, flat
» MTC-24MR optional mud ring construction bracket
1
Measured in half-space (flush mounted in ceiling) at 1W @ 1m from 200 Hz to 3
kHz.
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), averaged 100 Hz to 10 kHz.
JBL continually engages in research related to product improvement. Changes
introduced into existing products without notice are an expression of that philosophy.
Included grille not shown