JBL Control 426C/T-LS - Ceiling Speaker for Security and Evacuation (2-Pack)
The JBL Control 426C/T-LS is a high-performance coaxial loudspeaker designed specifically for commercial installations and life safety systems. Sold in a convenient two-pack, this 6.5-inch ceiling speaker not only delivers JBL's legendary sound quality for background music and announcements, but also meets the strictest regulations for fire alarm and voice evacuation systems. Its design integrates a 165mm woofer and a 25mm soft dome tweeter, ensuring clear, full-range audio reproduction—essential for both voice intelligibility in emergencies and an enjoyable listening experience in everyday life.
Thanks to its UL1480, UL1480A, and UL2043 certifications, the Control 426C/T-LS is approved for use in air handling units (plenums) and as a component of fire alarm and signaling systems. It incorporates JBL's exclusive CRBI™ (Coplanar Radiation Boundary Integrator) technology, which ensures exceptionally wide and uniform 110° sound dispersion. This homogeneous coverage minimizes "hot spots" and dead zones, allowing for a larger area to be covered with fewer speakers, resulting in reduced installation costs and time.
Main Features
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High-Performance Coaxial Design: Integrates a 6.5-inch (165 mm) woofer with a treated paper cone and a 1-inch (25 mm) soft dome tweeter for a balanced and detailed frequency response.
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Life Safety Certification: Complies with UL1480, UL1480A and UL2043 standards, making it fully suitable for fire alarm systems, voice evacuation and emergency signaling.
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Exclusive CRBI™ Technology: The Coplanar Radiation Boundary Integrator (CRBI™) provides an exceptionally consistent 110° conical coverage, ensuring clear and uniform sound throughout the listening area.
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Versatile Connectivity: Equipped with a high-quality 60W transformer for 70V/100V lines (with 60W, 30W, 15W and 7.5W sockets), and a direct 12-ohm input for low impedance systems.
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Efficient Installation: Designed with an integrated backcan, robust "dog-ears" anchoring tabs and top and side entry connection terminals for quick, safe and flexible installation on a wide variety of ceilings.
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Discreet and Professional Design: Features a frameless, white magnetic grille that blends seamlessly into any décor. It also boasts an IP33 rating for protection against dust and light splashes.
Benefits for Installers and End Users
For system integrators, the Control 426C/T-LS simplifies project planning and execution. Its wide 110° coverage reduces the number of units required, while its 12-ohm impedance allows up to three speakers to be connected in parallel to a single 4-ohm amplifier channel, optimizing amplification. The blind mounting system with included accessories (C-ring and ceiling plate guides) streamlines the installation process.
For building owners and users, this loudspeaker offers maximum peace of mind by meeting the most stringent safety regulations. In an emergency, voice clarity is paramount, and the 426C/T-LS design ensures that every announcement is perfectly intelligible. During normal operation, it provides high-fidelity background sound that enhances the atmosphere of any commercial space.
Use Cases
This speaker is the ideal solution for a wide variety of public and commercial environments where safety and sound quality are crucial. Its certification and performance make it perfect for:
- Airports, train stations and transport terminals.
- Shopping centers, department stores and retail shops.
- Hospitals, clinics and health centers.
- Hotels, convention centers and conference rooms.
- Corporate buildings and offices.
- Educational institutions such as schools and universities.
Frequently Asked Questions
- What does it mean for it to be a "Life Safety" (LS) speaker?
- This means the speaker has been designed, tested, and certified under strict standards (such as UL1480) for reliable use in life-saving systems, such as fire alarms and voice evacuation systems. It guarantees that it will function correctly to transmit audible alerts in emergency situations.
- Can I paint the grate to match my ceiling decor?
- No. To maintain the validity of the UL1480 safety certification, neither the grille nor any other part of the speaker should be painted. Any alteration could affect its properties and void the certification.
- How many Control 426C/T-LS speakers can I connect to one amplifier?
- It depends on the connection mode. In low-impedance mode, its 12-ohm load allows you to connect up to three speakers in parallel per channel to an amplifier stable at 4 ohms. If you use a 70V or 100V line system, you can connect a large number of speakers, provided the sum of the power ratings of their transformer taps does not exceed the amplifier's output power.
- What is JBL's CRBI™ technology?
- CRBI™ (Coplanar Radiation Boundary Integrator) technology is a waveguide design patented by JBL. Its function is to optimize sound dispersion to be extremely uniform across the entire coverage area, eliminating sound differences between listening directly under the speaker and listening from the sides.
Project description
Two-way coaxial ceiling speaker with a 165 mm (6.5 in.) woofer and a 25 mm (1 in.) soft dome tweeter. Frequency response: 72 Hz to 19 kHz (-10 dB). Power handling: 110 W (continuous program) and sensitivity: 89 dB. 110° conical coverage angle. Includes a 60 W transformer for 70V/100V lines with taps for 60 W, 30 W, 15 W, and 7.5 W (70 V only), and direct operation into 12 ohms. Certified to UL1480, UL1480A, UL2043, NFPA90, NFPA70, and CAN/ULC-S541 standards. IP33-rated steel enclosure. Dimensions: 253 mm diameter x 190 mm height. Weight: 4.2 kg.
