JBL CBT 70JE-1-WH - 500W 4 x 5-inch Passive 2-Way IP55-Rated Column Loudspeaker Extension with Crossover for CBT 70J-1 in White Finish

The JBL Professional CBT 70JE-1-WH is a powerful 500W passive column loudspeaker extension designed to pair seamlessly with the CBT 70J-1 to provide extended bass response, superior pattern control, and increased sound output levels. The CBT 70JE-1-WH is ideal for use in large spaces where high-quality sound and consistent coverage are needed, such as auditoriums, stadiums, transit centers, theme parks, and multipurpose venues. This extension speaker enhances the CBT 70J-1 system by delivering powerful low-frequency output while maintaining the exceptional sound clarity and vertical coverage consistency that the CBT series is known for.

The CBT 70JE-1-WH features four high-power 5-inch low-frequency drivers arranged in a compact, weather-resistant enclosure. The drivers utilize lightweight dual magnet neodymium motors with 38 mm voice coils, ensuring maximum flux in a compact design while minimizing distortion and providing high power handling. The 16 mm long coils offer a high linear drive and excellent low-frequency performance, even at high volumes. Additionally, the damped blended textile surrounds and coated, sealed paper cones are designed to withstand moisture, UV, and salt, making the speaker suitable for both indoor and outdoor installations. The IP-55 rating ensures protection against harsh environmental conditions, including moisture and salt exposure, making it perfect for outdoor applications such as theme parks, stadiums, and other exposed areas.

The CBT 70JE-1-WH features JBL's patent-pending Constant Beamwidth Technology (CBT), which provides constant directivity at high frequencies and reduces out-of-coverage lobing. The technology is paired with a physical J-shaped curving design that results in asymmetrical vertical coverage. This unique approach directs more sound to the far areas of the listening space and reduces the concentration of sound in the near field, ensuring a more uniform front-to-back SPL (sound pressure level) across the entire space. This improved coverage pattern provides greater consistency in sound levels, particularly in large or acoustically challenging spaces, where traditional column speakers may struggle with even coverage.

The CBT 70JE-1-WH is designed to work in tandem with the CBT 70J-1 system. The combination of the two units provides a 140 cm (55.2 inches) tall line array, delivering consistent vertical coverage throughout the intelligibility band and enhancing sound quality. The system's frequency range extends from 45 Hz to 700 Hz, with sensitivity ratings of 90 dB (full space) and 96 dB (half space), ensuring clear, powerful audio reproduction. The system's maximum SPL reaches 117 dB, with a peak SPL of 131 dB in narrow speech mode, and 125 dB in broad music mode. These high output levels ensure that the CBT 70JE-1-WH can handle large spaces and provide high clarity at long throw distances.

To ensure seamless integration with the CBT 70J-1, the CBT 70JE-1-WH includes a purpose-designed crossover network and a coupler plate for easy installation. The coupler plate allows for a direct, end-to-end connection between the CBT 70JE-1 and the CBT 70J-1, forming a complete, progressive line array system. The system's performance is optimized through the use of a switchable voicing option, which allows users to choose between flat frequency response in music mode and a mid-range presence boost in speech mode for enhanced speech intelligibility in large venues.

The rugged fiberglass-reinforced ABS cabinet provides excellent protection against environmental stressors, while the painted aluminum grille stands up to portable and event applications, resisting rust and corrosion. The included swivel (pan) / tilt wall-mount bracket allows for flexible installation and precise aiming, with the ability to adjust the speaker's angle to meet the needs of the specific venue. Additional mounting options include the MTC-PC2 terminal panel cover, MTC-CBT-SMB1 stand-mount bracket, and MTC-CBT-FM2 flush-mount low-profile wall-mount bracket, allowing for a wide range of installation configurations.

The CBT 70JE-1-WH is a versatile, high-performance loudspeaker extension that complements the CBT 70J-1 system to deliver exceptional sound quality, extended bass response, and superior pattern control. Whether used in a large auditorium, sports arena, or outdoor venue, this extension system provides the necessary clarity, coverage, and durability required for demanding environments.

Features

• 500W power handling with 2000W peak, providing robust low-frequency output
• Four 5-inch high-power low-frequency drivers with dual magnet neodymium motors and 38 mm voice coils for superior performance
• Patent-pending Constant Beamwidth Technology for consistent vertical coverage and reduced lobing
• Asymmetrical vertical coverage pattern for improved front-to-back SPL consistency
• Frequency range from 45 Hz to 700 Hz, ideal for extended bass response in large venues
• IP-55 rating for outdoor use, providing moisture, UV, and salt resistance
• Switchable voicing for flat music response or enhanced mid-range presence in speech mode
• Dynamic SonicGuard protection to minimize distortion at high drive levels
• Built-in crossover network for seamless integration with the CBT 70J-1 system
• Included coupler plate for easy attachment to the CBT 70J-1, forming a progressive line array
• Maximum SPL of 117 dB with a peak SPL of 131 dB in narrow speech mode
• Rugged fiberglass-reinforced ABS enclosure with aluminum grille for durability and weather resistance
• Dimensions: 54.8 x 6.7 x 9.3 inches, Net weight: 45 lbs
• Included accessories: Coupler plate, swivel (pan) / tilt wall bracket
• Optional accessories: MTC-PC2 terminal panel cover, MTC-CBT-SMB1 stand-mount bracket, MTC-CBT-FM2 flush-mount bracket

Specifications

System

• Components: Four (4) 130 mm (5 in) LF drivers
• Frequency Range (-10 dB): 45 Hz - 700 Hz
• Sensitivity (2.83V @ 1m): 90 dB full space, 96 dB half-space (65 Hz - 300 Hz)
• Nominal Impedance: 8 ohms
• Power Capacity: 500 W (2000 W peak), 2 hrs; 350 W (1400 W peak), 100 hrs
• Max SPL: 117 dB
• Net Weight: 18 lbs

Transducers

• Low Frequency Drivers: 8 pcs, 130 mm (5 in) drivers, dual magnet neodymium, 38 mm (1.5 in) voice coil, damped blended textile surround, coated diaphragm for moisture, UV, and salt resistance, shielded
• High Frequency Drivers: 16 pcs, 25 mm (1 in) drivers, dual magnet neodymium, encased magnet and coated diaphragm for moisture, UV, and salt resistance, shielded

Enclosure

• Enclosure Material: 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: 20 insert points total, 8 utilized for coupler plate, M6 (16 mm deep) on back panel
• Mounting: Coupler plate joins the CBT70J-1 and 70JE-1 end-to-end. Threaded points on coupler plate accept OmniMount 60.0 Series and 120.0 Series compatible wall-mount brackets, as well as points for the swivel (pan)/tilt wall bracket that is included with CBT 70J-1. Twelve (12) additional M6 mounting points accept forged shoulder steel eyebolts or swivel clips for suspension
• Dimensions (H x W x D): 54.8 x 6.7 x 9.3 in
• Net Weight: 45 lbs
• Included Accessories: Coupler plate (included with 70JE-1), Swivel (pan) / tilt wall bracket (included with 70J-1)
• Optional Accessories: MTC-PC2 terminal panel cover, MTC-CBT-SMB1 Stand-Mount Bracket for use with 35 mm heavy-duty speaker stand (must be heavy-duty stand for stability with this array), MTC-CBT-FM2 flush-mount low-profile wall-mount bracket