JBL Control 447HC 6.5-Inch RBI-Equipped 2-Way Coaxial Ceiling Loudspeaker for High-Ceiling Applications

The JBL Control 447HC is a 6.5-inch two-way coaxial ceiling loudspeaker from the Control 400 Premium Coverage Series, featuring JBL's conical Radiation Boundary Integrator (RBI) with a focused 85-degree narrow coverage pattern - engineered specifically for highly reverberant spaces and high-ceiling applications where broad-dispersion speakers create intelligibility problems.

Replacing the Control 47HC, the 447HC enables A/V designers to maintain intelligible, low-reverb audio in architecturally challenging spaces including atriums, airport terminals, train stations, gymnasium facilities, and large-format retail environments with ceilings above 15 feet. The focused 85-degree conical RBI pattern concentrates output toward listeners and away from reflective surfaces.

Like all Control 400 Premium Coverage Series models, the speaker features JBL's redesigned terminal covers with top and side cable entry, captive hand-screw securing, and a reliable dogear design for a wide range of ceiling thicknesses. The full-face magnetic grille is paintable and includes an integrated safety tether. Safety ratings include UL 1480A, UL 2043, NFPA 90A, and NFPA 70 for plenum-rated environments.

Key Features

• 85-Degree Narrow RBI Coverage Pattern: JBL's conical Radiation Boundary Integrator (RBI) focuses audio into a precise 85-degree pattern, controlling reverb and improving intelligibility in highly reverberant and high-ceiling environments.
• 6.5-Inch Two-Way Coaxial Driver: Coaxially mounted 165mm woofer and 25mm soft-dome tweeter deliver 55 Hz to 20 kHz full-range coverage with the directivity control of a narrow-pattern speaker.
• Designed for High-Ceiling Deployment: Focused pattern control enables longer throw distances, making it ideal for ceiling heights exceeding standard commercial installations.
• 70V/100V and Direct Operation: Integrated transformer supports both distributed audio systems and direct 8-ohm low-impedance configurations.
• Paintable Magnetic Grille: Full-face bezel-less magnetic grille with safety tether maintains architectural aesthetics even in large-format commercial spaces.
• Plenum-Rated: UL 1480A and UL 2043 listed for safe air-handling ceiling plenum installations.

Technical Specifications

• LF Driver: 165 mm (6.5 in) woofer
• HF Driver: 25 mm (1 in) soft-dome tweeter, neodymium magnet
• Frequency Range: 55 Hz - 20 kHz
• Coverage Pattern: 85 degrees conical (focused RBI)
• Coverage Technology: Conical RBI Radiation Boundary Integrator
• Transformer: 70V/100V multi-tap
• Sold As: Pair
• IP Rating: IP33 per EN/IEC 60529
• Safety Certifications: UL 1480A, UL 2043, NFPA 90A, NFPA 70, CSA C22.2 No. 205
• Operating Temperature: 0 deg C to 45 deg C

What's Included

• (2) JBL Control 447HC Ceiling Loudspeakers
• Mounting Hardware
• White Round Paintable Magnetic Grilles