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Reduces sound transmission.
Use a backbox to reduce the sound being transmitted through the wall for a quieter home.
Designed for Bowers & Wilkins CI 600 Series and CI 300 Series in-wall speakers
Fits any CWM model in the CI 300 or CI 600 range. Must be used with a PMK pre-mount kit (sold separately).
Improves audio performance
The rigid metal enclosure tightens bass performance for a cleaner sound.
Meets fire safety building regulations
Improves home safety.
Required Pre Mount Kit
For CWM66x or CWM36x models use PMK W6. For CWM652 use PMK W5.
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