I was actually surprised by how good these were given the low price. The plastic is really solid, the connectors are high quality, and the packaging was perfect. I was going to put the Sonance "invisible speakers" into the wall as-is, but then got worried about noise leakage and dust getting into the speaker. Glad I bought these to solve both problems.

Makes speaker sound much better and keeps sound from bleeding into room behind speaker wall they are in. I got these hoping to help reduce some sound bleed into my master bedroom and these did that and much more. I would highly recommend if you are wondering if you should get them or not.

Nice quality item, but you have to have a deep enough bay for it to work. Our Sheetrock was only 4” to the back of the room on reverse side, so they were too deep once mounted on the back of the speakers for my home.

Greatly reduces leakage into other rooms and improves sound quality. We had the speakers installed w/o the boxes and had a great deal of spillover into adjacent rooms. When we moved we purchased the boxes and the issue was resolved 100%.

This fit perfect, and very easy to install. I would recommend if you are putting in a wall speaker to prevent anything getting into the speaker and messing it up.