Review on 🔊 In-Wall Home Theater Passive Subwoofer Speaker - Acoustic Audio HDS10 by Goldwood, 10-Inch, White by Dana Lynn

Works. Doesn't sound BIG, but it's definitely good for hiding. You can see the yellow through the bars, so you can put a layer of cloth in front of the device to hide the color. Hell thunders from my wall. I've even screwed drywall screws into the wall and spackled/textured/painted it, but it still rattles. Make sure you have enough blocks in the wall ALL the way around to make sure it doesn't rumble. This was also 5/8 inch drywall.