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Description
The Bowers & Wilkins BB125C and BB165C are purpose-built backboxes designed to provide a controlled acoustic environment and secure structural integration for compatible in-ceiling loudspeakers. Engineered for custom installation applications, these enclosures enhance audio performance while maintaining compliance with building and safety standards.
Optimised Acoustic Chamber
Both the BB125C and BB165C create a defined internal volume that improves bass accuracy, reduces resonance and enhances overall sound clarity. Their rigid construction ensures consistent performance in a wide range of architectural environments.
Secure and Professional Installation
The installation guide details step-by-step mounting procedures, including ceiling cut-out preparation, orientation of the backbox, fixing methods and sealing approaches. The design supports stable integration within plasterboard or drywall ceilings and ensures long-term mechanical reliability.
Cable Management & System Integration
Integrated cable entry points and strain-relief features support safe and organised wiring. This ensures clean routing and compliance with electrical safety standards during both new-build and retrofit installations.
Precision Dimensions for Architectural Fit
The BB125C has a square footprint of 330 × 330 mm with a depth of 95 mm, as illustrated in the detailed technical drawings. Additional measurements such as the internal driver aperture (Ø254 mm external, Ø207 mm internal) allow installers to plan accurate placement within ceiling structures.
Safety & Compliance
According to the EU Declaration of Conformity (page 6), both backboxes comply with:
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EMC Directive 89/336/EEC
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General Product Safety Directive 2001/95/EC
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Standards including EN 61000-6-1, EN 61000-6-3 and BS EN 60065
This ensures long-term regulatory compliance and safe integration into residential or commercial environments.
Key Features
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Acoustically optimised backboxes for Bowers & Wilkins in-ceiling speakers
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Rigid enclosure to minimise vibration and enhance clarity
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Supports secure ceiling mounting with multi-point fixings
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Integrated cable entry and strain-relief for safe wiring
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Precision dimensions (330 × 330 × 95 mm for BB125C) for predictable installation
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Fully compliant with EMC and EU safety standards
User guides
Download User Guides:
BB_125C Dimensions
BB125C-and-BB165C Installation Guide
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