Jbl 2366 a brochure

Page 1

JBL

Bi-Radial® Constant
Coverage Horns

Professional Series

Key Features:

>Uniform on and off axis
frequency response

Full horn loading to 350 Hz

lrecise horizontal and vertical
pattern control

Uncolored sound quality

49 mm (2 in.) throat entry

JBL BieRadialEhorns' are designed
to provide uniform on and off axis fre
quency response from below 500 Hz
to beyond 16 kHz. The horn, unique
geometry and relatively tall vertical
mouth dimension ensure precise vere
tical, as well as horizontal, beamwidth
control throughout the rated free
quency band. Since both horizontal
and vertical coverage patterns remain
essentially constant, horn perfon
mance may be easily predicted for any
given frequency or orientation. Cluse
ter design, therefore, is simplified and
the need for horn overlapping is mini,
mized. Typical cluster performance
problems such as lobing and comb file
ter effects are virtually eliminated.

Computer aided design techniques were used to derive the horn contours
in the horizontal and vertical planes. Utilizing sidewall contours based on a
polynomial power series formula, the patented horn design yields smooth
reponse, low distortion, and even coverage. This design avoids the problems
normally associated with horns that feature sharp flare transitions and flat
sidewalls. The BieRadialmcompound flare configuration of the horn provides
constant coverage over defined, solid angles.

Three horn models are available with nominal coverage angles of 90° x 40,°
60° x 40° and 40° X 20° ( 7 6 dB, Horizontal x Vertical). All three feature 795 mm
(31min) square mouth dimensions to further simplify cluster design. In addi
tion, the 90° x 40° and 60° x 40° horns are identical in length.

Each BieRadialm constant coverage horn is supplied with a cast aluminum
throat that All accept jBL 2446, 2450, or 2485 50 mm (2 in) throat diameter
compression drivers. 25 mm (1 in) throat diameter drivers may be mounted if a
proper horn throat adapter is installed. Mounting tabs are provided on all four
sides of the supplied horn throat and are located just behind the combined
horn/driver center of gravity.

To ensure freedom from resonances, light Weight, and superior structural
strength, the horn bell is constmcted of heavy duty, 7.5 mm (W in) thick,
fiberglass reinforced plastic. Mounting holes are provided on the top wall of
the bell to facilitate threeepoint hanging.

L's 9mm No 4,308,932 Foreign pmm pending