Specification

CBT 50LA-1
Constant Beamwidth Technology™
Line Array Column Loudspeaker
with Eight 50mm (2in) Drivers
Key Features:
Patent-pending Constant Beamwidth
Technology™ provides constant directivity
up to the highest frequencies and reduces
out-of-coverage lobing.
Switchable voicing provides flat response in
music mode or mid-range presence peak in
speech mode.
Dynamic SonicGuard™ overload protection
Built-in 70V/100V transformer, plus 8 ohm
direct capability.
Swivel (pan) / tilt wall bracket included.
Overview:
The CBT 50LA-1, with Constant Beamwidth
Technology™, represents a breakthrough in
pattern control, utilizing analog delay beam-
forming and amplitude tapering to
accomplish consistent vertical coverage
without the narrow vertical beaming and
out-of-coverage lobing that are typical of
straight form-factor passive column speakers.
The slim, compact design fits well into
virtually any architectural decor. The
combination of superb sound quality,
excellent pattern control, and compact
(53 cm [20.8 in] tall by 10 cm [3.9 in] wide)
design makes CBT 50LA-1 ideal for a wide
variety of applications, such as retail stores,
concourses, transit spaces, fill applications,
conference rooms, architectural spaces, audio
for video, lecture halls, and other
applications where such a combination is
desired.
The voicing can be set to match the
application through the Music/Speech switch,
conveniently located on the side of the
cabinet. The Music setting provides flat
frequency response, while the Speech setting
produces a mid-range presence boost to
provide clear, intelligible speech even at the
longest throw distances.
The drivers feature dual neodymium
magnets for light weight. Copper-capped pole
pieces lower both the driver inductance and
the flux modulation. This increases high-
frequency extension and reduces distortion
at high drive levels. Butyl rubber surrounds
provide long life even in high humidity
environments. The drivers are shielded.
Dynamic SonicGuard™ minimizes
distortion at high drive levels by limiting
low frequency excursion dynamically. This
maximizes clarity at high drive levels while
protecting the drivers from damage due to
overpowering.
A swivel (pan) / tilt wall-mount bracket is included and ten M6 inserts on the back
panel fit the spacing of common mounting brackets, or can be utilized to suspend the
speaker using M6 forged shoulder steel eyebolts, providing versatility of installation.
CBT 50LA-1 can be installed either indoors or outdoors. The drivers are
weather-
treated, the fiberglass reinforced ABS cabinet with UV resistant paint is excellent for
outdoor applications, external screws are stainless steel, and the painted aluminum grille
resists rusting in the harshest conditions.
Available in black or white (-WH).
Specifications:
Components: Eight 50 mm (2 in) Full-Range
Frequency Range (-10 dB)
1
: 80 Hz – 20 kHz
Coverage Pattern: Vertical 20° (1.5 kHz - 16 kHz, ±10°)
Horizontal 150° (ave, 1 kHz – 4 kHz, ±20°)
Sensitivity (2.83V@ 1m)1: 93 dB (speech mode, 2 kHz - 14 kHz)
89 dB (music mode, 300 Hz - 18 kHz)
Nominal Impedance: 8 ohms
Power Capacity 150W (600W peak), 2 hrs
(8 ohm setting)
2
: 100 W (400W peak), 100 hrs
Max SPL
3
: Speech mode: 115 dB cont ave (121 peak)
Music mode: 111 dB cont ave (117 peak)
70V/100V Transformer Taps: 60W, 30W, 15W, (7.5W at 70V only), and 8 thru, via switch
Enclosure: Fiberglass reinforced ABS cabinet, painted aluminum grille
Outdoor Capability: IP-55 rated, per IEC529, when installed with optional MTC-PC2 panel
cover. UV, moisture and 200-hr ASTM G85 acid-air/salt-spray resistant.
Colors: Black or White (-WH)
Insert Points: Ten M6 swivel (pan)/tilt insert points on back panel.
Mounting: Included swivel (pan) / tilt wall bracket provides continuously variable
+/-80 degree left-right swivel aiming (at no up/down tilt -- see Bracket
Guide for maximum swivel range at various up/down tilt angles),
continuously adjustable ±15 degree tilt, as well as 5 degree fixed
increment points within the range. Ten threaded mounting points
located on back panel conform to industry standard rectangular 108 x
51 mm (4.25 x 2.0 in) pattern for OmniMount® 30.0 and other
compatible third-party brackets. Threaded mounting points can be
utilized for suspension.
Dimensions (H x W x D): 528 x 99 x 153 mm (20.8 x 3.9 x 6.0 in)
Net Weight: 4.1 kg (9.0 lb)
Included Accessories: Swivel (pan) / tilt wall bracket
Optional Accessories:
MTC-PC2 terminal panel cover
MTC-CBT-FM1 flush-mount low-profile wall-mount bracket
MTC-CBT-SMB1 Stand-Mount Bracket for use with 35 mm speaker stand
1
Full space
2
IEC standard, full bandwidth pink noise with 6 dB crest factor.
3
Calculated based on power rating and measured sensitivity, exclusive of power compression.
JBL continually engages in research related to product improvement.
Changes introduced into existing products without notice are an expression of that philosophy.