User Manual for JBL Constant Beamwidth Technology CBT 50LA-LS Line Array Column Loudspeaker with Eight 2" Drivers Click to enlarge the picture
Contents of the user manual for the JBL Constant Beamwidth Technology CBT 50LA-LS
- Product category: PA Speakers JBL
- Brand: JBL
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for JBL PA Speakers
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User manual for the JBL Constant Beamwidth Technology CBT 50LA-LS contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any JBL product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official JBL user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a JBL product will considerably shorten its lifespan!
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Product description The white Constant Beamwidth Technology CBT 50LA-LS Line Array Column Loudspeaker from JBL utilizes 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 excellent sound quality and pattern control, and compact (20.8" tall x 3.9" wide) design makes the CBT 50LA-LS Line Array Column Loudspeaker suitable 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 shielded drivers feature dual neodymium magnets for light weight. Copper-capped pole pieces lower the driver inductance and 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. Dynamic SonicGuard overload protection 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 accommodate third-party mounting brackets, or can be utilized to suspend the speaker using M6 forged shoulder steel eye bolts, providing versatility of installation. The loudspeaker can be installed either indoors or outdoors. The drivers are weather treated, and the fiberglass reinforced ABS cabinet with UV resistant paint is suitable for outdoor applications. The external stainless steel screws and the painted aluminum grille resist rusting in harsh conditions. - Constant Beamwidth Technology provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing
- EN54-24 compliant (when installed with included MTC-PC2 panel cover)
- 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 8Ω direct capability
- Swivel (pan) / tilt wall bracket included
In the Box JBL Constant Beamwidth Technology CBT 50LA-LS Line Array Column Loudspeaker with Eight 2" Drivers (White) MTC-PC2 Panel Cover Swivel (Pan) / Tilt Wall-Mount Bracket Limited 5-Year Warranty Table of Contents
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Technical parametersJBL CBT 50LA-LS-WH Specs | Components | 8 x 2" (50 mm) full-range drivers | | Frequency Range | 120 Hz to 20 kHz, -10 dB (full space) | | Coverage Pattern | Vertical: 20° (1.5 to 16 kHz, ±10°)
Horizontal: 150° (average, 1 to 4 kHz, ±20°) | | Coverage Angle | 4000 Hz: 18° (H) x 140° (V)
2000 Hz: 32° (H) x 210° (V)
1000 Hz: 55° (H) x 260° (V)
500 Hz: 100° (H) x 260° (V) | | Sensitivity | 1W/1m, Full Space
93 dB (Speech mode, 2 to 14 kHz), 89 dB (Music mode, 300 Hz to 18 kHz)
1W/4m, Full Space
89 dB (Speech mode, 2 to 14 kHz), 77 dB (Music mode, 300 Hz to 18 kHz) | | Power Capacity | 8 Ω Setting: 150 W (600 W peak), 2 hours
100 W (400 W peak), 100 hours IEC standard, full bandwidth pink noise with 6 dB crest factor | | SPL | Maximum @ 3.3' (1 m):
Speech Mode: 115 dB continuous averaged (121 peak)
Music Mode: 111 dB continuous averaged (117 peak)
Maximum @ 13.1' (4 m):
Speech Mode: : 103 dB continuous average (109 peak)
Music Mode: 99 dB continuous average (105 peak) Calculated based on power rating and measured sensitivity, exclusive of power compression | | Impedance | 8 Ω (in bypass mode)
Taps:
667 Ω (7.5 W @ 70 V; 15 W @ 100 V tap)
333 Ω (15 W @ 70 V; 30 W @ 100 V tap)
167 Ω (30 W @ 70 V; 60 W @ 100 V tap)
83 Ω (60 W @ 70 V; N/C @ 100 V tap) | | Transformer Taps | 70 V / 100 V: 60 W, 30 W, 15 W, (7.5 W at 70 V only), and 8 Ω thru, via switch Per EN54-24 Components of Voice Alarm System: Loudspeakers 70 V /60 W (35 V RMS, 70 V peak), 100 V / 60 W (50 V RMS, 100 V peak) | | Enclosure | Fiberglass reinforced ABS cabinet (UL94-5VB and UL94-5VA flammability-rated), painted aluminum grille | | Outdoor Durability | IP-55 rated, per IEC529, when installed with optional MTC-PC2 panel cover
UV, moisture, and 200 hour ASTM G85 acid-air/salt-spray resistant | | Rigging Points | 10 x M6 swivel (pan)/tilt insert points on back panel Insert points conform to industry standard rectangular 4.25 x 2.0" (108 x 51 mm) pattern for OmniMount 30.0 and other compatible third-party brackets. | | Mounting | Included swivel (pan) / tilt wall bracket provides continuously variable ±80° left-right swivel aiming
Continuously adjustable ±15° tilt, as well as 5° fixed increment points within the range | | Safety Agency Approvals | EN54-24:2008 certified (Certificate No. 0359-CPR-00238), when installed with MTC-PC2 terminal panel cover. In accordance with the requirements of IEC60849/EN60849. | | Dimensions (H x W x D) | 20.8 x 3.9 x 6.0" (52.8 x 9.9 x 15.3 cm) | | Weight | 9.0 lb (4.1 kg) |
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