JBL 28T-60 - Manual

Control

®

28T-60

High Output
Indoor/Outdoor
Background/Foreground Speaker

Key Features:

䉴

Isolation transformer for
70.7V/100V distributed-line
sound systems

䉴

Components: 8” Polypropylene
coated woofer, 1” Titanium coated
horn loaded tweeter

䉴

Built-in

InvisiBall

TM

mounting

hardware*

䉴

Weather resistant enclosure and
transducers

䉴

Readily paintable

䉴

90° x 90° high frequency horn

䉴

Overload Protection Circuitry

*Patents pending worldwide

The Control

®

28T is the largest of

JBL Professional’s Control Contractor
Series indoor/outdoor loudspeakers.
Its rich sonic character makes the
Control

®

28T a perfect choice for

restaurants, health clubs, under bal-
cony, outdoor theme & water parks,
or other applications where fore-
ground/background music and pag-
ing are required. The Control 28T can
be used in either 70.7V or 100V
distributed-line sound systems. Taps
are provided at 60W, 30W and 15W
(plus a 7.5W tap for use on 70.7V
systems only).

The unique and global patent

pending

InvisiBall

™ mounting hard-

ware is included in each system and
makes short work of permanent
installation. The InvisiBall™ mounting
method adds the benefit of vertical
rotation of up to 37° off-axis and hor-
izontal rotation of up to 44° off-axis.
Because

InvisiBall

™ adjustments are

made through a hidden access
behind the logo badge, the grill
never needs to be removed and there
exists a high degree of theft deter-
rence as well.

The Control

®

28T readily accepts a

variety of paints and finishes to
match any decor.

Weather resistance is maximized by

coating the woofer cone in
polypropylene and terminating its cir-
cumference in JBL’s

WeatherEdge

™, a

seamless, rubberized extension of the
woofer surround that provides added
protection to critical transducer ele-
ments. The polycarbonate tweeter

diaphragm is reinforced with a thin film of titanium for added rigidity and
endurance against sun, salt and moisture. Zinc plated grilles resist rusting in
the harshest conditions.

Available in black (Control 28T-60) and white (Control 28T-60-WH).

Specifications:

Frequency Range (-10 dB)

1

: 55Hz to 15kHz

Power Capacity: Components and Network: 175 Watts Continuous Program

2

Transformer: Per each listed tap rating

(IEC pink noise, 100 hrs)

Tap Settings: 100V Line: Tap 1 = 15W, Tap 2 = 30W

Tap 3 = 60W, Tap 4 is not used

70V Line:

0

Tap 1 = 7.5W, Tap 2 =15W
Tap 3 = 30W, Tap 4 = 60W

Nominal Max Output by Tap: Tap Number

70.7V Input

100V Input

(dB-SPL @ 1m)

:

Tap #1:

0

99 dB

102 dB

Tap #2:

102 dB

105 dB

Tap #3:

105 dB

107 dB

Tap #4:

107 dB

(do not use)

Directivity Factor (Q): 7.5

Directivity Index (DI): 8.8

Crossover Frequency: 2.8kHz

LF Driver: 200mm (8 in) Polypropylene cone w/WeatherEdge

HF Driver: 25mm (1 in) Titanium coated polycarbonate

Enclosure Material: HIPS (High Impact Polystyrene)

Overload Protection: Full-Range power limiting to protect network and transducers

Termination: Spring terminals, accepts banana plug

Environmental: Conforms to Mil Spec 810 for humidity, salt spray,

temperature & UV. IEC 529 IP-X4 splashproof rating.

Dimensions (H x W x D): 380 x 280 x 220 mm (15.0 x 11.0 x 8.6 in)

Net Weight (ea): 6.5kg (14.3 lbs)

Shipping Weight (pr): 15kg (33 lbs)

Included Accessories: Invisiball Assembly

6mm x 180mm hex key

Optional Accessories:

MTC-28V: For vertical columnar orientation of up to 3 loudspeakers

MTC-28H: For horizontal splaying of two speakers. Three brackets array

up to six loudspeakers in a 360° array.

MTC-28/25CM: Ceiling-mount adapter.

1

Half-space (on-wall).

2

Continuous program power is a conservative expression of the system’s ability to handle normal speech and music
program material and is defined as 3dB above the Continuous Pink Noise Rating (IEC-shaped pink noise with a 6dB
crest factor, for 100 hours continuously).

3

Half-space (on-wall), ave 100Hz 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.

Professional Series