Metal in ceiling/wall back box for flush mount speakers - Fire rated

The WMM450 is a fire-proof speaker back box for in-wall and in-ceiling installations in hollow structures. It is constructed out of power coated steel and allows installation for all kinds of flush mount speakers with a built-in depth up to ~ 115 mm. It provides an ideal environment for the installed speakers while preventing undesirable sound leaks into neighboring rooms. The dimensions of 446

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