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

The JBL Professional CBT 70JE-1 is a 500W passive column loudspeaker extension designed to work seamlessly with the CBT 70J-1, delivering extended bass response, increased sound output levels, and enhanced pattern control. When combined with the CBT 70J-1, this system provides a comprehensive solution for achieving consistent vertical coverage and powerful low-frequency output, ideal for both indoor and outdoor applications. The CBT 70JE-1 utilizes JBL's Constant Beamwidth Technology (CBT), providing superior vertical coverage without the typical issues of beaming and lobing found in traditional column speakers. This system delivers asymmetrical vertical coverage with a higher concentration of sound from the upper half of the array, and a broader vertical pattern from the lower half, ensuring that the far areas of the room receive more sound than the nearby areas, creating more even SPL (sound pressure levels) from front to back.

The CBT 70JE-1 features four high-performance 5-inch low-frequency (LF) drivers and a built-in, purpose-designed crossover network specifically engineered for integration with the CBT 70J-1. This combination results in a highly controlled progressive line array with exceptional sound quality and low-frequency response, extending the system's bandwidth to 45 Hz - 700 Hz, and making it ideal for applications such as auditoriums, lecture halls, concert venues, transit centers, and multipurpose spaces. The system is designed to excel in challenging acoustic environments, providing excellent intelligibility and even coverage across the entire listening area.

The 500W power handling (2000W peak) ensures that the CBT 70JE-1 can produce powerful, dynamic sound, while the low-distortion drivers feature dual neodymium magnets, 1.5-inch voice coils, and a damped blended textile surround. These components deliver high linear drive, excellent power handling, and reduced distortion, even at high levels. The drivers also feature moisture, UV, and salt resistance, ensuring long-term durability for both indoor and outdoor use. Additionally, the high-frequency drivers are magnetically shielded, allowing the system to be placed near sensitive equipment like CRT monitors without interference.

The enclosure of the CBT 70JE-1 is constructed from fiberglass-reinforced ABS, providing durability and weather resistance. The IP-55 rating (when installed with the optional MTC-PC2 panel cover) ensures the system can withstand exposure to moisture, UV rays, and harsh environmental conditions, making it suitable for outdoor installations. The painted aluminum grille protects the components from rust and corrosion, even in the most demanding conditions.

The CBT 70JE-1 is designed for easy installation, with a coupler plate included that allows for seamless connection to the top of the CBT 70J-1. This connection results in a complete line array system that provides powerful bass, extended pattern control, and even coverage. The system can be mounted using the included swivel (pan) / tilt wall-mount bracket or suspended via the ten M6 mounting points that accommodate forged shoulder steel eyebolts or swivel clips. Optional accessories such as the MTC-PC2 terminal panel cover and MTC-CBT-SMB1 stand-mount bracket provide further flexibility for installation in various environments.

Overall, the JBL Professional CBT 70JE-1 is a powerful, versatile extension for the CBT 70J-1 system, delivering extended low-frequency performance, enhanced sound output, and exceptional pattern control for a wide range of applications. Its weather-resistant design and robust construction ensure reliable performance in even the harshest conditions, making it an ideal choice for both indoor and outdoor installations.

Features

• 500W power handling with 2000W peak, providing powerful low-frequency output
• Features four 5-inch low-frequency drivers with dual neodymium magnets and 1.5-inch voice coils for high power handling and minimal distortion
• Built-in crossover network designed for integration with the CBT 70J-1, extending bass response and enhancing pattern control
• Asymmetrical vertical coverage pattern ensures more sound is directed towards the far area of the room, achieving more consistent SPL levels
• Frequency range of 45 Hz - 700 Hz, ideal for achieving deep, dynamic bass response
• High-frequency drivers feature coated diaphragms for moisture, UV, and salt resistance, ensuring outdoor capability
• Constructed with a fiberglass-reinforced ABS enclosure and IP-55 rating (with optional MTC-PC2 cover) for durability in outdoor environments
• Easy to install with included coupler plate, swivel (pan) / tilt wall-mount bracket, and mounting points for suspension
• Moisture-resistant and UV-protected design with heavy-duty aluminum grille for rust-free performance outdoors
• 10 M6 mounting points and optional accessories for further installation versatility
• Net weight: 45 lbs, dimensions: 54.8 x 6.7 x 9.3 inches
• 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