B-Sound sonaboxx Installation guide - flush concrete ceiling speaker backbox

Sonaboxx and flush mount adapter
The sonaboxx is specifically designed for the installation of speakers in concrete ceilings. Our research and testing led us to the final product which guarantees ease of use, low resonances and excellent sound absorption results - making the sonaboxx the best concrete system for speakers available today.
A wide range of cut-out options and sizes is available for todays best-selling speakers.
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