JBL CBT 100LA-1 Constant Beamwidth Technology Column Array Loudspeaker

The JBL CBT 100LA-1 is a professional column array loudspeaker engineered to deliver exceptional speech intelligibility, consistent sound coverage, and reliable performance in commercial and installed sound applications. Featuring sixteen 2-inch full-range drivers and JBL's patented Constant Beamwidth Technology™, this high-performance loudspeaker provides precise vertical coverage control while maintaining wide horizontal dispersion.

Designed for acoustically challenging environments, the CBT 100LA-1 is an excellent solution for houses of worship, auditoriums, lecture halls, conference facilities, transportation terminals, and other spaces where clear, evenly distributed sound is essential.

With selectable vertical coverage patterns, speech and music voicing modes, and integrated 70V/100V transformer capabilities, the JBL CBT 100LA-1 offers the flexibility required for both distributed audio systems and conventional low-impedance installations.

JBL Constant Beamwidth Technology for Superior Sound Coverage

The CBT 100LA-1 incorporates JBL's innovative Constant Beamwidth Technology, which uses analog delay beam-forming and amplitude tapering to maintain consistent coverage throughout the listening area.

Unlike conventional column loudspeakers that may produce uneven frequency response at different listening distances, this technology helps deliver more uniform sound distribution and improved speech intelligibility.

The loudspeaker features two selectable vertical coverage patterns:

• Narrow Mode (15°): Provides focused vertical coverage for longer-throw applications where sound must reach listeners farther from the loudspeaker.
• Broad Mode (40°): Offers wider vertical coverage for installations requiring sound distribution across a larger vertical listening area.

A nominal 150° horizontal coverage pattern allows the CBT 100LA-1 to reach a wide audience while helping minimize unwanted sound reflections.

These selectable coverage options make the loudspeaker particularly useful in reverberant spaces where controlling sound dispersion can improve overall system performance.

Selectable Speech and Music Voicing

The JBL CBT 100LA-1 features selectable speech and music voicing modes, allowing installers to optimize performance for the intended application.

Speech Mode emphasizes the frequencies important for vocal clarity, making it suitable for presentations, announcements, lectures, and spoken-word applications.

Music Mode provides a more balanced frequency response for background music, foreground music, and general sound reinforcement.

Combined with JBL's Dynamic SonicGuard™ overload protection, these features help maintain clear, reliable audio performance in demanding commercial environments.

Flexible 70V/100V and Low-Impedance Operation

The CBT 100LA-1 includes an integrated multi-tap transformer, allowing it to operate with commercial distributed audio systems or conventional low-impedance amplifiers.

Available transformer settings include:

• 120W
• 60W
• 30W
• 15W (70V systems only)
• Direct low-impedance Thru mode

This flexibility allows the CBT 100LA-1 to integrate into a variety of professional sound system designs, from individual loudspeaker installations to larger distributed audio systems.

Versatile Mounting and Installation Options

The JBL CBT 100LA-1 includes a swivel and tilt wall-mount bracket designed to provide precise loudspeaker positioning.

The included bracket supports adjustable horizontal aiming and vertical tilt, allowing installers to direct sound toward the intended listening area.

Additional mounting flexibility is provided by eighteen M6 threaded insert points on the rear panel, supporting compatible mounting hardware and installation configurations.

The durable fiberglass-reinforced ABS enclosure and painted aluminum grille provide dependable performance in demanding commercial environments.

For outdoor installations, the CBT 100LA-1 can achieve an IP55 rating when installed with the optional JBL MTC-PC2 terminal panel cover, providing additional protection against dust and water exposure.

Key Features

• Sixteen 2-inch (50 mm) full-range drivers
• JBL patented Constant Beamwidth Technology™
• Selectable 15° narrow and 40° broad vertical coverage
• Wide 150° nominal horizontal dispersion
• Selectable speech and music voicing modes
• Dynamic SonicGuard™ overload protection
• Integrated 70V/100V multi-tap transformer
• Low-impedance direct connection capability
• 80 Hz – 20 kHz frequency range (-10 dB)
• Up to 121 dB continuous maximum SPL in narrow speech mode
• Included adjustable swivel/tilt wall-mount bracket
• Eighteen M6 threaded mounting points
• Fiberglass-reinforced ABS enclosure
• Painted aluminum grille
• IP55 outdoor rating with optional MTC-PC2 cover
• Black finish

JBL CBT 100LA-1 Technical Specifications

Specification	Details
Manufacturer	JBL Professional
Model	CBT 100LA-1
Loudspeaker Type	Passive column array loudspeaker
Drivers	16 × 2-inch (50 mm) full-range
Frequency Range (-10 dB)	80 Hz – 20 kHz
Vertical Coverage	15° narrow / 40° broad (±10°)
Horizontal Coverage	150° (±20°)
Sensitivity — Narrow Speech	96 dB
Sensitivity — Narrow Music	93 dB
Sensitivity — Broad Speech	93 dB
Sensitivity — Broad Music	90 dB
Nominal Impedance	5 ohms in Thru mode
Power Capacity (2 Hours)	325W / 1300W peak
Power Capacity (100 Hours)	200W / 800W peak
Maximum SPL — Narrow Speech	121 dB continuous / 127 dB peak
Maximum SPL — Narrow Music	118 dB continuous / 124 dB peak
Maximum SPL — Broad Speech	118 dB continuous / 124 dB peak
Maximum SPL — Broad Music	115 dB continuous / 121 dB peak
Transformer Taps	120W, 60W, 30W; 15W at 70V only
Transformer Selector	Includes 8Ω Thru setting
Enclosure	Fiberglass-reinforced ABS
Grille	Painted aluminum
Outdoor Capability	IP55 with optional MTC-PC2 cover
Mounting Points	18 × M6 threaded inserts
Dimensions (H × W × D)	39.4" × 3.8" × 6.0"
Net Weight	15.8 lbs (7.2 kg)
Finish	Black
Included Accessory	Swivel/tilt wall-mount bracket

Typical Applications

The JBL CBT 100LA-1 is suitable for professional installations requiring controlled sound dispersion and clear speech reproduction.

Common applications include:

• Houses of Worship: Improved speech intelligibility and consistent coverage in reverberant sanctuaries.
• Auditoriums and Lecture Halls: Focused sound distribution for presentations, lectures, and educational programs.
• Conference Centers: Clear announcements and presentation audio across large meeting spaces.
• Transportation Facilities: Speech reinforcement and public address systems in terminals and waiting areas.
• Gymnasiums: Controlled vertical coverage to help reduce unwanted reflections.
• Commercial Facilities: Background music, paging, and general sound reinforcement.

Compatible JBL Accessories

Several optional JBL accessories are available to support different installation requirements.

JBL MTC-PC2 Terminal Panel Cover

Provides additional environmental protection and is required for the CBT 100LA-1 to achieve its specified IP55 outdoor rating.

JBL MTC-CBT-FM1 Flush-Mount Bracket

A low-profile wall-mounting solution for installations where minimal loudspeaker projection is preferred.

JBL MTC-CBT-SMB1 Stand-Mount Bracket

Allows the CBT 100LA-1 to be mounted on a compatible 35 mm speaker stand.

These accessories are sold separately.

Why Buy the JBL CBT 100LA-1 from Audio Supply?

At Audio Supply, we understand the importance of selecting the right loudspeaker for commercial and professional audio installations.

Whether you're designing a sound system for a house of worship, school, auditorium, or commercial facility, our team can help you identify compatible amplification, mounting accessories, and additional equipment for your project.

We offer professional JBL audio products backed by knowledgeable customer support and a commitment to helping customers find practical solutions for their sound systems.

Need a Compatible Amplifier or Mounting Accessory?

The JBL CBT 100LA-1 can be integrated into 70V/100V distributed audio systems or low-impedance installations with properly matched amplification.

Contact Audio Supply for assistance selecting compatible amplifiers, mounting brackets, and accessories for your JBL CBT 100LA-1 installation.