I want to install a couple of these:
*inside* the house, tied into the alarm and "fire" systems.But, don't want to *see* them (i.e., hanging on a wall).
The only two options that come to mind are to:
- set them *in* the ceiling behind a decorative grating/grillwork
- fasten them to the interior of a closet (and expect some attenuation due to the closet door being closed
Inside a duct would also be good -- probably REALLY good as it would also serve as an acoustical conduit -- but I think disallowed (code).
Note that the enclosure is essential to the performance of the device as it is, in effect, a folded horn.