FBT KEIRON 4C Passive 4″ Loudspeaker – Black or White

FBT KEIRON 4C — Compact 2-Way Coaxial Passive Install Speaker

KEIRON 4C Overview

The FBT KEIRON 4C is a compact passive point-source loudspeaker built for permanent installation environments where consistent, controlled coverage is essential. Its 2-way coaxial driver configuration pairs a 4″ low-frequency driver with a 1″ high-frequency tweeter, delivering a smooth off-axis response and 90° conical dispersion suited to short-throw applications and nearfield fill roles within distributed systems. An internal crossover simplifies system integration without requiring external processing for driver management. The KEIRON 4C is well-suited for system integrators, AV installers, and venue operators specifying discreet, reliable coverage in hospitality, corporate, retail, and house of worship environments.

The wooden cabinet is finished with a scratch-resistant paint available in black or white to suit architectural requirements, and Euroblock input and link connectors support clean, professional wiring in permanent installations. A dedicated installation bracket is included, providing multi-angle adjustment capability for precise aim and coverage optimization on-site.

Key Features

• 2-Way Coaxial Driver Design — 4″ LF driver and 1″ HF tweeter in a coaxial configuration for coherent point-source output and consistent off-axis response
• 90° Conical Dispersion — Predictable, even coverage pattern suited to short-throw and nearfield fill applications
• Internal Crossover — Onboard passive crossover simplifies system design and reduces external processing requirements
• Euroblock In & Link Connectors — Industry-standard Euroblock connectivity supports clean, permanent wiring and daisy-chain capability for distributed system configurations
• Scratch-Resistant Wooden Cabinet — Durable painted finish available in black or white for architectural integration in permanent installations
• Included Installation Bracket — Dedicated mounting bracket with multi-angle adjustment capability for flexible positioning and precise coverage aiming
• Passive Operation — Requires external amplification, allowing integrators to specify amplifier power to match system requirements

Shipping & Returns

• • Free Shipping Policy
  • Returns & Warranty

Learn More About the FBT KEIRON 4C

• • Official Product Page
  • KEIRON 4C Datasheet (PDF)
  • KEIRON User Manual (PDF)