Control
®
28T-60
High Output
Indoor/Outdoor
Background/Foreground Speaker
Key Features:
Isolation transformer for
70.7V/100V distributed-line
sound systems
Components: 8” Polypropylene
coated woofer, 1” Titanium coated
horn loaded tweeter
Built-in InvisiBall®mounting
hardware*
Weather resistant enclosure and
transducers
Readily paintable
90° x 90° high frequency horn
Overload Protection Circuitry
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 balcony, outdoor theme & water parks,
or other applications where foreground/background music and paging 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 InvisiBall mounting
hardware 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° and horizontal
rotation of up to ±44°. Because
InvisiBall adjustments are made
through a hidden access behind the
logo badge, the grill never needs to
be removed, while providing a high
degree of theft deterrence as well.
Weather resistance is maximized by
coating the woofer cone in
polypropylene and terminating its circumference in JBL’s WeatherEdge™, a
seamless, rubberized extension of the
woofer surround that provides added
protection to critical transducer elements. 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). The
Control
®
28T readily accepts a variety of paints and finishes to match any
decor.
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: 0Tap 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: 099 dB 102 dB
Tap #2: 102 dB 105 dB
Tap #3: 105 dB 107 dB
Tap #4: 107 dB (do not use)
Nominal Coverage: 90° x 90°
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
Safety Agency Rating: Transformer UL1876 recongized
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
Control®28T-60 High Output, Indoor/Outdoor, Background/Foreground Speaker
Frequency Response in half-space
with 70.7V input, taps #1 through
#4. For 100V input,raise each
curve 3 dB.
Beamwidth
Directivity Index,Q
Horizontal Off Axis Frequency Response
Vertical Off Axis Frequency Response (up)
Vertical Off Axis Frequency Response (down)
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