The JBL Professional Control 19CST is a high-performance, passive 8-inch ceiling subwoofer designed to deliver powerful bass with a low-profile in-ceiling installation. This subwoofer is engineered for sound systems requiring extended low-frequency output, and it is perfectly suited to augment the bass performance of the JBL Control Contractor series loudspeakers. With its innovative design and advanced technologies, the Control 19CST ensures full-fidelity bass reproduction with minimal distortion, making it ideal for a variety of commercial applications, including music cafes, retail stores, airports, convention centers, and more.
The standout feature of the Control 19CST is its unique Nested Chamber design combined with the Linear Dynamic Aperture port design, which allows the subwoofer to produce high output from a compact enclosure. This design ensures the delivery of deep, extended bass while maintaining high efficiency and low distortion. The speaker's acoustic low-pass character makes it easy to integrate into a full-range sound system without requiring an external crossover or a separate amplifier channel, ensuring a seamless bass addition to the system.
The Control 19CST uses JBL's proprietary SonicGuard overload protection circuitry, which allows the speaker to handle higher operational levels while maintaining system reliability and protecting against overload damage. The 200 mm (8-inch) long-excursion driver features a polypropylene cone with a 38 mm (1.5-inch) coil mounted on an aluminum former, providing excellent durability and sonic performance. The vented pole piece minimizes distortion, while the pure butyl rubber surround offers extended life and excellent damping for reliable, long-term performance. The Control 19CST subwoofer is designed to be connected to a system in several configurations, including in parallel with full-range speakers for a bass-overlap setup, or with an electronic crossover and separate amplifier channel for enhanced bass management.
With a frequency range of 42 Hz to 200 Hz, the Control 19CST delivers powerful, deep bass that enhances the overall sound quality of the system. Its high sensitivity of 95 dB SPL at 1W, combined with a maximum SPL of 115 dB at 1 meter, ensures it can handle high-volume applications while delivering consistent, high-fidelity bass throughout the listening space. The subwoofer also features a nominal impedance of 8 ohms and can be used with both 70V and 100V distributed audio systems. The system is equipped with transformer taps of 75W, 30W, 15W, and 7.5W at 70V and 75W, 30W, and 15W at 100V, making it versatile for a variety of installations.
Installation of the Control 19CST is straightforward and efficient. The speaker comes with a grille, backcan, and tile rails, ensuring quick and easy installation in standard ceiling tiles. It is also equipped with a removable locking connector for secure wire termination, and the design includes a strain relief assembly for use with cable or flex conduit. The Control 19CST is UL listed and compliant with various safety standards, ensuring it is suitable for use in air handling spaces and meeting industry standards for safety and reliability.
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