
Bosch LC1-CBB speaker
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Bosch LC1‑CBB Back Box
The Bosch LC1‑CBB Back Box is a purpose-built mounting enclosure designed exclusively for Bosch LC1 ceiling loudspeakers. Crafted from durable metal and finished in clean white, this essential accessory enhances your installation by:
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Acoustic isolation: Prevents sound from escaping into adjacent ceiling cavities, ensuring clear, focused audio delivery.
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Protective barrier: Shields the speaker’s rear from dust, debris, dripping water, and vermin—ideal for challenging environments.
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Effortless installation: “Click-on” design fits seamlessly atop the LC1 mounting ring. Features knockout holes accommodating two grommets (11 mm) and two cable glands (20.5 mm) for tidy cable management.
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Regulatory compliant: Meets EN 54‑24 voice alarm certification standards.
Why it matters:
Enhance your Bosch LC1 installed speaker system with improved sound performance and robust protection. Perfect for professional audio setups—office spaces, retail environments, schools, or public buildings—where reliability and clarity are essential.
Quick specs snapshot:
Feature | Detail |
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Material & Finish | Durable metal, white (RAL 9010) |
Cable entries | Knockouts for 11 mm grommets & 20.5 mm glands |
Compatibility | Bosch LC1 series ceiling loudspeakers |
Certifications | EN 54‑24 compliant voice alarm |
Don’t skimp on your install—add the Bosch LC1‑CBB Back Box to elevate performance, protect your system, and ensure smooth cable runs.

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