JBL 1 CBT50LA Spec Sheet 022213

CBT50LA-1_022213 JBL - Manuals+

JBL_CBT50LA-1_SpecSheet_022213 JBL CBT 50LA-1 | Constant Beamwidth Technology™ Line Array Column Loudspeaker

User Manual: JBL JBL CBT 50LA-1 | Constant Beamwidth Technology™ Line Array Column Loudspeaker

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CBT 50LA-1

Constant Beamwidth Technology™
Line Array Column Loudspeaker
with Eight 50 mm (2 in) 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 beamforming 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 highfrequency 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 weathertreated, 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 SPL3: 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

Full space
IEC standard, full bandwidth pink noise with 6 dB crest factor.
Calculated based on power rating and measured sensitivity, exclusive of power compression.

1
2
3

JBL continually engages in research related to product improvement.
Changes introduced into existing products without notice are an expression of that philosophy.

CBT 50LA-1 Line Array Column Loudspeaker with Eight 50 mm (2 in) Drivers
Frequency Response:

316

90

100

80

31.6

70

10

SPL (dB)

100

60
20

100

1000

10000

3.16
20000

1000

10000

20000

Frequency (Hz)

Ohms

“Music” Mode (solid); “Speech” Mode (dotted), 1W, 1m, and Impedance

Beamwidth
-6 dB Beamwidth (degrees)

360

100

Horizontal
Vertical
10
20

100

Frequency (Hz)

20

100

10

10

0
20

100

1000

10000

Directivity Factor (Q)

Directivity Index (DI), dB

Directivity, Q

1
20000

Frequency (Hz)

Vertical Off-Axis Frequency Response

Horizontal Off-Axis Frequency Response
10

0 deg

0

10 deg
20 deg

-10

30 deg
40 deg

-20

-30

20

100

1000

Frequency (Hz)

10000

20000

Attenuation (dB)

Attenuation (dB)

10

0 deg

0

10 deg
20 deg

-10

30 deg
40 deg

-20

-30

20

100

1000

Frequency (Hz)

10000

20000

CBT 50LA-1 Line Array Column Loudspeaker with Eight 50 mm (2 in) Drivers
Horizontal 1/3 Octave Polars
0°
330°

0

0°

30°

330°

-6

0

30°

-6

300°

60°

300°

60°

200 Hz

8 kHz

250 Hz
270°

90°

240°

12.5 kHz
16 kHz

240°

30°

-6

300°

60°

500 Hz
630 Hz
270°

90°
800 Hz
1 kHz

240°

120°

150°

210°
180°

0°
330°

0

30°

-6

300°

60°

1.25 kHz
1.6 kHz
270°

90°
2 kHz
2.5 kHz

240°

120°

150°

210°
180°

0°
330°

0

30°

-6

300°

60°

3.15 kHz
4 kHz
270°

90°
5 kHz
6.3 kHz

240°

120°

210°

150°
180°

150°
180°

0°
0

120°

210°

150°
180°

330°

90°

400 Hz

120°

210°

10 kHz
270°

315 Hz

CBT 50LA-1 Line Array Column Loudspeaker with Eight 50 mm (2 in) Drivers
Vertical 1/3 Octave Polars
90°
120°

90°

60°

120°

150°

30°

60°

150°

30°

200 Hz

3.15 kHz

250 Hz
180°

-6

0°

0

4 kHz
180°

-6

315 Hz

0

0°
5 kHz
6.3 kHz

400 Hz

210°

210°

330°

240°

330°

240°

300°

90°
120°

300°
270°

270°

90°

60°

120°

150°

30°

60°

150°

30°

500 Hz

8 kHz

630 Hz
180°

-6

0°

0

10 kHz
180°

-6

800 Hz

0

0°

210°

210°

330°

90°
60°

150°

30°

1.25 kHz
1.6 kHz
180°

-6

0

0°
2 kHz
2.5 kHz

210°

330°

240°

300°
270°

300°
270°

270°

120°

330°

240°

300°

240°

12.5 kHz
16 kHz

1 kHz

Dimensions:
Dimensions in mm (in)

51 [2.0]

153 [6.0]

99 [3.9]

49 [1.9]

108 [4.25]

108 [4.25]
528 [20.8]
108 [4.25]

108 [4.25]

M6x1.0P (10 places)

Wall Bracket

Ø7 [Ø0.28]

51 [2.0]

183 [7.2]

88 [3.5]
Ø6.5 [Ø0.26]

Tilt Angle Adjustment:
Slot ( ±15°, continuous )
Pre-Set Angles ( 5° increments )

215 [8.5]

177 [7.0]
Toward
Loudspeaker

Loudspeaker-Mount
Section

Toward
Wall

Assembled Bracket

Wall-Mount
Section

JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
© Copyright 2013 JBL Professional
www.jblpro.com

5011374 REV B
02/13



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