JBL PROFESSIONAL CBT-1000E - Extension for CBT 1000 Line Array Column Speaker
The JBL CBT-1000E is an expansion module specifically designed to be paired with the JBL CBT 1000 line array column speaker. This component is not a standalone speaker, but rather a powerful addition that unlocks a new level of sonic performance. When connected, the combined system benefits from significantly extended low-frequency response, more precise coverage pattern control, and a considerable increase in sound pressure levels (SPL). This system is the ideal solution for venues that demand precise and highly intelligible audio coverage, such as auditoriums, theaters, convention centers, and houses of worship.
The magic of the CBT 1000 + 1000E system lies in JBL's patented Constant Beamwidth Technology™ . This innovation represents a fundamental advancement in directivity control, utilizing a complex system of analog beamforming and amplitude shading to achieve superior and consistent vertical coverage. Unlike traditional passive column speakers, JBL's CBT system eliminates narrow vertical beams and out-of-coverage lobes, ensuring that sound is directed precisely where it's needed and kept away from reflective surfaces that can cause unwanted reverberation.
The CBT-1000E's robust enclosure, constructed from fiberglass-reinforced ABS with a high-strength aluminum grille, houses six 6.5-inch high-excursion low-frequency drivers. Equipped with powerful neodymium magnets and 50 mm voice coils, these drivers are engineered for exceptional performance. The magnetic structure is shielded, and copper pole pieces reduce flux modulation, minimizing distortion even at high power levels. Its 1500 W (continuous program) power handling capacity ensures powerful and defined bass reproduction, extending the entire system's frequency response down to an impressive 38 Hz.
Main features
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Low Frequency Extension: Designed to work in conjunction with the CBT 1000, it extends the system's bass response down to 38 Hz, providing a fuller and deeper sound.
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Enhanced Pattern Control: Increases array directivity, extending coverage pattern control down to 300 Hz for ±20 degree control, improving intelligibility in acoustically complex environments.
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Higher Power and SPL: Doubles the power handling capacity of the combined system and significantly increases the maximum sound pressure level.
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High-Performance Transducers: Equipped with six 6.5-inch (165 mm) woofers with neodymium magnets, 2-inch voice coils, and treated cones for exceptional durability.
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Integrated Crossover: Includes a passive crossover network specifically designed for perfect acoustic integration with the CBT 1000 speaker.
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Rugged Outdoor Construction: The fiberglass-reinforced ABS enclosure and powder-coated aluminum grille give it an IP-55 weather resistance rating (with optional MTC-PC2 panel cover), exceeding Mil Spec 810 specifications for humidity, temperature, and UV.
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Easy Installation: Includes a coupling plate to securely and easily connect the CBT-1000E to the CBT 1000, forming a single continuous line array.
Benefits of the combined CBT 1000 + 1000E system
For sound system designers and installers, the combination of the CBT 1000 with the CBT-1000E offers a tool of unparalleled versatility. The ability to adjust the vertical coverage asymmetrically allows for precise sound direction to be aimed at specific audience areas, covering the front to back rows with exceptional sound level consistency. This is achieved without the need for external DSP processing, simplifying setup and reducing costs. The CBT 1000's Tapered Horizontal Waveguide technology ensures that even the front and rear corners of the room receive clear, direct sound, eliminating dead spots.
Use cases
The JBL CBT-1000 column system, along with its CBT-1000E extension, is the perfect choice for a wide range of fixed installation applications requiring high sound quality, controlled directivity, and high power. Its performance is ideal for auditoriums, conference rooms, performing arts centers, stadiums, transportation hubs, theme parks, and any indoor or outdoor space where speech intelligibility and musical quality are paramount.
Frequently Asked Questions
Can I use the JBL CBT-1000E as a standalone speaker?
No, the CBT-1000E is an extension and is designed to work exclusively with the JBL CBT 1000 column speaker. It contains a crossover specifically for this combination and will not function correctly on its own.
What's included with the CBT-1000E?
The package includes the CBT-1000E extension module and the docking plate needed to physically attach it to the CBT 1000 speaker.
Is this system suitable for outdoor installations?
Yes. Both the CBT 1000 and CBT-1000E are designed to withstand harsh weather conditions. With the optional MTC-PC2 panel cover, the system achieves an IP-55 rating, protecting it against dust and water. The materials are resistant to UV rays, humidity, and salt.
Project description
Low-frequency extension for line array column speakers. Comprising six 165 mm (6.5-inch) low-frequency transducers with neodymium magnets and 50 mm voice coils. Power handling of 1500 W (continuous program, 2 hours) and 1000 W (100 hours). Nominal impedance of 8 ohms. Combined system frequency range of 38 Hz to 20 kHz. Fiberglass-reinforced ABS enclosure with aluminum grille. Designed to be coupled with the JBL CBT 1000 loudspeaker using the included coupling plate. Suitable for outdoor use with an IP-55 rating (with optional accessory).
