JBL Control Control 23T Specifications page 3

Horizontal 1/3 Octave Polars
Architectural Specifications:
The loudspeaker shall consist of a 90mm (3-1/2 in) low frequency
transducer, 13 mm (1/2 in) high frequency transducer, and frequency
dividing network installed in a ported enclosure. The low frequency
voice coil shall be 19 mm (3/4 in) in diameter.
Performance specifications of a typical production unit shall be as
follows: Usable frequency response shall extend from 100 Hz to 21 kHz
(10 dB below rated sensitivity, in half-space, with no external
equalization). The loudspeaker shall be equipped with a transformer for
use in either 70.7 or 100V distributed-line sound systems. The tap shall
be nominally 5W @ 70.7V and 10W @ 100V. The frequency dividing
network shall have a crossover frequency of 3.5 kHz. Rated power
capacity of the coimponents and network shall be at least 50 watts
continuous program power, defined as 3dB above a test signal of filtered
random noise conforming to international standard IEC268-5 (shaped
pink noise with a peak-to-average ratio of 6dB), for 100 continuous
hours duration.
The system shall be protected against damage from occassional
overpowering via full range series lamps that limits the power to the
network and transducers. The high frequency transducer shall be
horn-loaded to more evenly cover a nominal 90° horizontal by 90°
vertical area.
The enclosure shall be constructed of high-impact polystyrene for
protection against the elements in outdoor applications, and for
paintability. The grille shall be completely zinc-coated for resistance
against rusting, shall be bake-painted black, and shall be secured via
screws to keep it in place when facing downward.
The low frequency transducer shall have a polypropelene cone and a
butyl rubber surround which shall extend seamlessly over the edge of
the speaker frame for protection against the elements. The high
frequency transducer shall be constructed of polycarbonate, reinforced
with a titanium film for additional weather resistance. The system shall
withstand Mil Spec 810 testing with specified time durations for
exposure to the following environments with no effect on its acoustical
performance or structural integrity: salt spray (method 509.3),
temperature -19°C to 49°C (method 501.3 and 502.3), 95% humidity
(method 507.3) and ultra-violet (method 505.3). The system shall have a
IEC 529 splashproof rating of IP-X4.
For theft deterrence, the installation access area shall be hidden
behind a snap-out cover, and the access area shall be on the front of the
loudspeaker for ease of installation and adjustment. The loudspeaker
shall be rotatable over a minimum of ±35° in all directions via a
ball-type mounting system. The ball mechanism shall be internal to the
cabinet to allow low-profile mounting and better stability via a short
moment arm. The logo shall be rotatable for proper orientation when
the loudspeaker is mounted horizontally or vertically.
The external wiring connectors shall be spring loaded and gold
plated, and shall accept bare wire, single or dual banana-type
connectors with 19 mm (3/4 in) spacing. Overall cabinet dimensions
shall be no greater than 193 mm (7.6 in) high by 140 mm (5.5 in) wide
by 111 mm (4.4 in) deep and shall weigh no more than 1.8 kg (4 lbs).
The finish shall be a paintable lighly textured black.
The system shall be the JBL Model Control 23T with included
Invisiball TM mounting system.