JBL MTC-300BB12 - 3 Cubic Foot Backbox for Control 300 Series 12-inch Drivers in Black Finish

The JBL Professional MTC-300BB12 is a high-performance three-cubic-foot backbox designed specifically for the JBL Control 300 Series 12-inch drivers. This robust backbox provides an optimal enclosure for the drivers, enhancing their performance by eliminating unwanted resonance and improving bass response. It features extra-thick 16-gauge metal construction, making it highly durable and capable of withstanding the demands of commercial and industrial installations. Additionally, the backbox is lined with 12 mm (1/2 inch) thick MDF, further reducing resonance while providing enhanced low-end response for superior audio quality.

The MTC-300BB12 is designed with flexibility in mind, offering a dual-mounting system for the baffle and knockouts on all four sides for easy wiring and installation. The knockouts are 0.87 inches in diameter and located in five locations: one on the top panel and one on each side and end panel. This allows for versatile cable management and makes the unit easier to integrate into various installation setups. The backbox also features a mounting platform for an optional high-power 70V/100V transformer, providing additional versatility for installations requiring different power configurations.

With an external volume of 3 cubic feet and an internal volume of 2.4 cubic feet, the MTC-300BB12 provides ample space for the JBL Control 300 Series 12-inch drivers, optimizing their acoustic performance and ensuring a tight, controlled sound. The backbox is engineered to meet safety standards, being rated for use in air-handling spaces according to U.L.-2043, U.L.-1480, NFPA90, and NFPA70A, making it suitable for a wide range of commercial and industrial applications. The backbox is finished in a sleek black powder coating, ensuring a professional appearance that blends well with most installation environments.

The MTC-300BB12 backbox is easy to install, with the included accessories that provide everything needed to securely mount the driver and optional transformer. The backbox also comes with machine screws and nuts to mount the baffle to the backbox, ensuring a stable and secure installation. With its robust construction, versatility, and superior bass response, the MTC-300BB12 is the ideal solution for optimizing the performance of the Control 300 Series 12-inch drivers in demanding installations.

Features

• Compatibility: Designed for JBL Control 300 Series 12-inch drivers
• Material: Extra-thick 16-gauge metal construction for durability
• 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 for flexible wiring and installation (one on top panel, one on each side and end panel)
• Mounting Options: Dual-mounting system for baffle and mounting platform for optional 70V/100V transformer
• Dimensions: Height: 12.1 inches above ceiling (12.6 inches total), Width: 23.1 inches, Depth: 18.2 inches (19.9 inches including side tabs)
• Ceiling Cutout: 14.9 inches x 14.9 inches
• Safety Rating: Suitable for use in air-handling spaces per U.L.-2043, U.L.-1480, NFPA90, and NFPA70A
• Weight: Net Weight: 45.5 lbs, Shipping Weight: 51 lbs
• Included Accessories: Includes screws for mounting baffle to backbox and nuts for optional transformer mounting
• Finish: Black powder-coated finish for a professional and durable appearance

Specifications

General

• External Volume: 3 cu ft, nominal
• Internal Volume: 2.4 cu ft
• Knockouts: 0.87 in diameter opening, five locations: 1 on top panel, 1 on each side and end panel
• Dimensions:
• Height: 12.1 in above ceiling, 12.6 in total height
• Width: 23.1 in
• Depth: 18.2 in cabinet, 19.9 in including side tabs
• Ceiling Cut Out: 14.9 in x 14.9 in
• Safety Agency Rating: Suitable for use in air handling spaces, per U.L.-2043, U.L.-1480, NFPA90 & NFPA70A
• Net Weight: 45.5 lbs
• Shipping Weight: 51 lbs
• Included Accessories: 4 pcs M4 x 14 mm machine screws for one system of mounting baffle to backbox, 6 pcs #10 x 0.75 in metal screws for another system of mounting baffle to backbox, 4 pcs M4 nuts for optional transformer mounting