JBL Professional JBL-C447C/T 6.5" Premium Ceiling Speaker

Product Overview

The JBL Control 447C/T is a 6.5" two-way coaxial ceiling speaker engineered for premium speech intelligibility and program audio in commercial AV installations. Its RBI™ (Radiation Boundary Integrator) design and 120° conical coverage deliver wide, even dispersion across conference rooms, retail environments, and house-of-worship spaces. With integrated 70V/100V transformer taps, this commercial ceiling loudspeaker drops directly into distributed audio systems without external components. The 282 mm cutout and tile-rail accessories make it a practical choice for both new construction and retrofit deployments.

Product Description

The Control 447C/T is a high-performance in-ceiling loudspeaker built around JBL's RBI™ waveguide, which integrates the high-frequency soft-dome and low-frequency cone into a single coaxial radiating source for smooth, time-aligned response. The 165 mm (6.5 in) LF driver uses a treated paper cone with a high-performance magnet, paired with a 25 mm neodymium soft-dome tweeter for clear vocal reproduction. With on-board 70V and 100V transformer taps (up to 60 W), it integrates directly into distributed paging and background-music systems, while an 8-ohm bypass supports low-impedance use. The speaker is rated for air-handling (plenum) spaces per UL 2043, NFPA 90A, and NFPA 70, and carries an IP33 environmental rating for protected indoor and semi-outdoor applications. A 282 mm (11.1 in) ceiling cutout, paintable white grille, and a full range of construction brackets and tile rails streamline installation in drop-ceiling and hard-ceiling environments. This makes the Control 447C/T well suited to integrators specifying consistent, code-compliant ceiling audio across multi-zone commercial deployments.

Key Features

• RBI™ Coaxial Design — Integrates the HF and LF sources into one radiating point for smooth, even coverage and improved off-axis intelligibility.
• 120° Conical Coverage — Wide, consistent dispersion reduces the number of speakers required to cover a given area in distributed ceiling systems.
• Integrated 70V/100V Transformer — On-board taps (60 W, 30 W, 15 W, 7.5 W) allow direct connection to distributed audio lines without external transformers.
• Neodymium Soft-Dome Tweeter — A 25 mm HF driver delivers clear speech and program detail for paging and foreground audio applications.
• Plenum-Rated Construction — Suitable for air-handling spaces per UL 2043, NFPA 90A, and NFPA 70 for code-compliant installation above drop ceilings.
• IP33 Environmental Rating — Protected against dust and angled water spray for use in semi-exposed and humid indoor environments.
• Retrofit and New-Construction Ready — A 282 mm cutout plus optional brackets and tile rails support fast installation in both existing and new ceilings.

Typical Applications

• Conference room
• Commercial meeting space
• House of worship
• Multi-purpose room
• Government space
• Training room
• Auditorium

Technical Specifications

Competitor Comparison

What's in the Box

• JBL Control 447C/T 6.5" coaxial ceiling loudspeaker with integral backcan
• Paintable white (RAL9003) grille
• Installation/spec documentation

Note: Construction brackets, tile rails, and alternate grilles (BL-MTC-447BG, JBL-MTC-447SG, JBL-MTC-447WG, JBL-MTC-447NC, JBL-MTC-447MR, JBL-MTC-48TRX4) are sold separately.

Frequently Asked Questions

Can the Control 447C/T be installed in a plenum air-handling space?
Yes. It is suitable for air-handling spaces per UL 2043, NFPA 90A, and NFPA 70, and is UL 1480A listed for commercial and professional use, making it compliant for installation above most drop ceilings.

Does it support both 70V and 100V distributed audio systems?
Yes. It has integrated transformer taps for 70V (60/30/15/7.5 W) and 100V (60/30/15 W) lines, plus an 8-ohm bypass for low-impedance use.

What ceiling cutout does it require?
The Control 447C/T requires a 282 mm (11.1 in) cutout. New-construction and mud-ring brackets plus a tile rail are available for different ceiling types.

Is the speaker rated for humid or semi-outdoor environments?
It carries an IP33 rating per EN/IEC 60529 and operates from 0°C to 45°C, suiting protected semi-exposed indoor locations such as covered walkways and atriums.

What warranty and integration support are available?
The unit is covered under JBL Professional's installed-sound warranty. Creation Networks provides AV system design and integration support for distributed audio specification and deployment.