JBL MTC-300BB8 - 1 Cubic Foot Backbox for Control 300 Series 8-inch Drivers in Black Finish

The JBL Professional MTC-300BB8 is a one-cubic-foot backbox designed for the JBL Control 328C and Control 328CT 8-inch drivers. This backbox is engineered to enhance the performance of these speakers by providing superior resonance control and improving bass response, ensuring exceptional sound quality in both commercial and residential installations. The MTC-300BB8 features extra-thick 16-gauge metal construction, which ensures durability and long-lasting stability. It is further lined with 12 mm (1/2 inch) thick MDF, effectively eliminating resonances and contributing to a more accurate and powerful bass output.

The backbox's design includes strategically placed knockouts, with a 0.87-inch diameter opening in five locations: one on the top panel and four on the side of the can. These knockouts provide flexibility in installation, allowing for easy and secure wiring connections and integration into various installation configurations. The backbox's external volume is 1 cubic foot, with an internal volume of 0.71 cubic feet, providing ample space to optimize the performance of the Control 328C and 328CT drivers.

The MTC-300BB8 backbox is built for ease of installation, featuring a ceiling cut-out dimension of 12.2 inches, and is designed to fit seamlessly into standard ceiling spaces. It is suitable for use in air-handling spaces, meeting safety ratings per U.L.-2043, U.L.-1480, NFPA90, and NFPA70A, ensuring that it complies with industry safety standards for both residential and commercial applications.

Finished in a sleek black powder coat, the MTC-300BB8 not only provides durability but also ensures an aesthetically pleasing appearance that blends well with most ceiling designs. The backbox includes four metal screws (#10 x 0.75 inch) for securely mounting the baffle to the backcan, streamlining the installation process and ensuring a solid connection between the speaker and backbox. With its robust construction, excellent resonance control, and simple integration, the MTC-300BB8 backbox is an ideal solution for enhancing the acoustic performance and longevity of the Control 328C and 328CT 8-inch drivers.

Features

• Compatibility: Designed for JBL Control 328C and 328CT 8-inch drivers
• Material: Extra-thick 16-gauge metal construction for durability and stability
• Acoustic Performance: Lined with 12 mm (1/2 inch) thick MDF to eliminate resonances and enhance bass response
• Knockouts: Five 0.87-inch diameter knockouts (one on top panel, four on the side) for easy wiring and installation
• Volume: External volume of 1 cubic foot, internal volume of 0.71 cubic feet for optimized sound performance
• Dimensions: Height: 10.2 inches above ceiling (10.6 inches total), Outside diameter: 15.0 inches, Inside diameter: 10.7 inches, Ceiling cutout: 12.2 inches
• Safety Rating: Suitable for use in air-handling spaces, meeting U.L.-2043, U.L.-1480, NFPA90, and NFPA70A safety standards
• Finish: Black powder-coated finish for durability and aesthetic integration into ceiling spaces
• Included Accessories: 4 pcs #10 x 0.75 inch metal screws for mounting baffle to backcan
• Weight: Net Weight: 11.5 lbs, Shipping Weight: 16.5 lbs

Specifications

General

• External Volume: 1 cu ft, nominal
• Internal Volume: 0.71 cu ft
• Knockouts: 0.87 in diameter opening, five locations: 1 on top panel, 4 on side of can
• Dimensions:
• Height: 10.2 in above ceiling, 10.6 in total height
• Outside Diameter: 15.0 in
• Inside Diameter: 10.7 in
• Ceiling Cut Out: 12.2 in
• Safety Agency Rating: Suitable for use in air handling spaces, per U.L.-2043, U.L.-1480, NFPA90 & NFPA70A
• Net Weight: 11.5 lbs
• Shipping Weight: 16.5 lbs
• Included Accessories: 4 pcs #10 x 0.75 inch metal screws for mounting baffle to backcan