I bought 2 of these for a Dolby Atmos 5.1.2 setup and I think they are great for protecting your overhead speaker investment from dust, insulation, critters etc . Also, I don't like the idea of my speakers being held to the ceiling with just 4 drywall dog/screw clips, so I found the steel casing and increased surface pressure area to be a huge plus. The one-page, one-page instructions were very easy, and the only hardware included is a wire-clamp connector that you insert into one of the two holes. I was able to do this in my existing house by installing an 18" piece of 2 x 4 (holes along the edge) and then driving a few screws through the ceiling joist into an 18" piece of wood with spacers (made me took about half a day). Also, prior to installation, I tested the soundproofing by playing music through a Bluetooth speaker placed on the floor and covered with a case. High and medium frequencies were significantly muffled, bass - to a lesser extent. but it was quite a noticeable difference, so this simple test gave me hope. I'm new to needlework and have been able to get satisfactory results. Hope that helps!
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