The JBL Control 424LP is a premium two-way coaxial ceiling loudspeaker engineered for commercial audio installations where shallow mounting depth, consistent coverage, and superior sound quality are essential. Part of the JBL Control 400 Enhanced Coverage Series, the 424LP combines JBL’s proprietary CRBI™ technology with a compact low-profile enclosure, making it ideal for installations with restricted ceiling plenum space.

Features

• Coaxially mounted 100 mm (4 in) woofer and 19 mm (0.75 in) soft-dome tweeter
  
• Low-profile enclosure (<100mm deep) for installing where ceiling plenum space is restricted
  
• CRBI™ technology for consistent 130° coverage across the listening area
  
• Built-in 70V/100V multi-tap transformer, plus 16-ohm direct input
  
• Full-face, easily paintable magnetic grilles
  
• Top and side exit cable entry options
  
• Robust and adaptable dogears for wide range of ceiling thicknesses
  
• IP33 rated

Superior Two-Way Audio Performance

Designed for smooth, full-range sound reproduction, the JBL Control 424LP features a 4-inch woofer and 0.75-inch textile soft-dome tweeter in a coaxial configuration for improved phase coherence and sonic consistency.

With a frequency range of 75 Hz to 18 kHz, the speaker provides detailed highs, articulate vocals, and balanced musical performance suitable for both background and foreground audio applications.

CRBI™ Technology with Wide 130° Coverage

The JBL Control 424LP delivers a broad 130° conical coverage pattern, ensuring smooth and even sound distribution across commercial spaces.

JBL’s proprietary CRBI™ technology delivers exceptionally even tonal balance and intelligibility across a wide listening area, helping maintain consistent sound quality both on- and off-axis. Its CRBI™ waveguide design minimizes audio hot spots and dead zones, enabling integrators to achieve consistent coverage with fewer speakers while maintaining excellent speech intelligibility and musical clarity.

Low-Profile Design for Restricted Ceiling Spaces

JBL Control 424LP features an ultra-shallow enclosure, specifically designed for applications where ceiling plenum depth is limited.

The built-in transformer supports both 70V/100V distributed systems and 16Ω low-impedance operation, providing flexible integration into professional commercial audio systems.

Modern Architectural Design

The JBL Control 424LP features a full-face, bezel-less magnetic grille that blends elegantly into modern architectural environments. Its refined appearance makes it ideal for architecturally sensitive commercial installations.

Ideal Applications

• Retail stores & shopping malls
  
• Restaurants, cafés & hospitality venues
  
• Corporate offices & meeting spaces
  
• Hotels, lounges & public facilities
  
• Educational and commercial distributed audio systems