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Description
The Bowers & Wilkins BB6C and BB6W are engineered backboxes designed to optimise the acoustic and structural performance of compatible in-wall loudspeakers. Developed for professional custom installation environments, these enclosures deliver controlled acoustic behaviour, secure in-wall integration and compliance with rigorous building and fire-safety standards.
Acoustic Optimisation
Each enclosure creates a defined internal volume that enhances bass response, improves clarity and reduces unwanted resonance. The rigid steel structure ensures consistent high-fidelity performance across home cinema and multi-room audio installations.
Professional Installation & Structural Security
As illustrated in the installation guide (pages 1–2), the backbox mounts directly to wall studs for a stable, code-compliant installation. Pre-formed slots and fixing points simplify alignment, while the enclosure’s recessed front fits seamlessly behind plasterboard for a clean architectural finish.
Integrated Cable Management
The BB6C and BB6W incorporate dedicated entry points for cable routing, complete with strain-relief mechanisms, ensuring safe and compliant wiring during new-build or retrofit installations.
Key findings include:
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The enclosure can be approved for 1-hour fire-resistance rating when installed with appropriate cavity-filling material rated to a minimum ignition temperature of 525°F.
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Testing confirmed that the enclosure prevents flame passage and maintains structural integrity when properly installed in a Type X gypsum wall assembly.
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The enclosure supports compliance with penetration firestop requirements when integrated as instructed.
User guides
Download User Guides:
BB 6W dimensions
BB 6W Fire Rating Document
BB-6C-6W Installation Guide
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