FBT Install Keiron 5C B Black

A compact reference from the Keiron series for integration projects

The FBT Install Keiron 5C B is part of the Keiron series, a line focused on installation that prioritizes consistent sound distribution, reduced footprint, and rational implementation. With its discreet format and coaxial configuration, it stands as an ideal solution when seeking an elegant speaker, easy to integrate and capable of delivering defined sound at realistic levels without oversizing the system.

Intended uses and users

This speaker is particularly suited for public spaces and fixed audio systems: meeting rooms, shops, restaurants, hotels, museums, multipurpose rooms, or reception areas. Its precise sound and consistent directivity also make it an excellent option for close-range sound reinforcement (hallways, checkout areas, booths) or as a supplementary speaker in multi-zone installations.

As a passive speaker, the Keiron 5C B targets integrators and users who already have an amplifier and wish to centralize amplification in a technical rack. The recommended amplification (120 W RMS) provides headroom and better control, especially when the speaker is driven by dynamic content (voice, sustained background music).

Coaxial design, consistent directivity, and optimized implementation

2-way coaxial architecture: intelligibility and coherence

The Keiron 5C B features a 2-way coaxial configuration : the tweeter is aligned with the woofer/midrange driver, promoting a stable sound image and improved phase coherence at short and medium distances. The result: vocals remain clear and the sound distribution stays uniform, even when the listener moves within the coverage area.

90 x 90 coverage: uniform distribution in real spaces

With a 90 degrees x 90 degrees dispersion, the speaker is designed to effectively cover an area without creating overly pronounced "hot spots." This directivity is especially useful in installations where controlling the energy sent into the room (reverberation, glass walls) is important while maintaining comfortable listening.

Recommended processing: protection and performance

FBT recommends using a 70 Hz high-pass filter with a 24 dB per octave slope. This setting helps limit unnecessary low-frequency stress and improves power handling, particularly if the speaker is used without a subwoofer. An external filter such as a digital management system with presets is also recommended to optimize protection and equalization according to the installation context.

Clean installation: Euroblock and dedicated bracket

The Euroblock connectivity (input and through) facilitates line wiring and integration in professional environments. For mounting, an adjustable bracket is available as an option (WM-45), convenient for precisely aiming the sound coverage according to the target area.

Technical specifications

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Model	FBT Install Keiron 5C B	Woofer	127 mm (5 inches) diameter, 38 mm (1.5 inches) voice coil
Type	Passive speaker	Tweeter	25 mm (1 inch) diameter, 25 mm (1 inch) voice coil
Series	Keiron	Frequency response	80 Hz - 20 kHz
Manufacturer reference	45383	Sensitivity	93 dB
Manufacturing	Italy	Max peak SPL	117 dB
Configuration	2-way coaxial	Dispersion	90 degrees H x 90 degrees V
Color	Black	Crossover frequency	3 kHz
Enclosure material	plywood	Recommended high-pass filter	70 Hz, 24 dB per octave
Recommended amplifier	120 W RMS	Recommended external filter	digital management with presets
RMS power	60 W	Input connectivity	Euroblock in & through
Peak power	240 W	Mounting	adjustable bracket sold separately (WM-45)
Nominal impedance	16 ohms