BXI Sound Absorber, 12 X 12 X 3/8 Inches 16Pcs High Density Acoustic Absorption Panel, Sound Absorbing Panels Reduce Echo Reverb, Tackable Acoustic Panels for Wall and Ceiling Acoustic Treatment

It seems that the description on the size - stating a cutting tolerance of 2% - has been added since I made my purchase (or I’m blind and didn’t see it), but basically what that translates into is that these are not exactly 16” x 12” x 3/8”. The thickness is close enough, but the length and width are off by about 1/4” (see my short video clip). That said, I was a bit disappointed because I needed to sizing to be correct as I planned on mounting some foam absorbers on top of them to create an extension of sorts to my studio room clouds. The foam absorbers were 12”x12”. Lucky for me the foam panels were super stinky, so I decided to give them a bath and throw them into the dryer for a few rounds - this ultimately made them shrink down tad, down to 11.75” x 11.75”. This ended up working out in my favor as now I would only need to make one cut on each of the BXI pads in order for everything to align properly. I know what you’re thinking - “why didn’t this guy just buy the 12”x12” pads to begin with?!” … Honestly, I don’t know. This was one of those late night amazon purchases, with a “buy it in 35 seconds so you can have it by Friday” kinda things. I had a few cocktails in me, so I just went with it without thinking. 

In any case, the panels are sturdy and dense. I wish they offered a thicker option (like double thickness, not their other panels which are 0.1” thicker), as I would have gladly purchased a set of those. Instead, what I did for my situation was cut/glue a stack of two BXI panels and topped it with one of those generic foam sound absorbers. Cutting was fairly easy. I tried both a box cutter and an electric knife, and I can’t say one method was more efficient than the other. They both took a bit of time and patience in order to get the cuts straight and (relatively) clean. They did the job, however, and nobody will see the imperfections where I’ve placed them, which is on the ceiling. To glue the panels together (both BXI to BXI and BXI to foam), I used 3M Super 77 adhesive spray. I mounted them to the ceiling using 6 square cut Gorilla brand mounting tape. 

How well do they work? Well, they do the job at the reflection point at which I’ve placed them. I need them to absorb some of the sound bouncing off my mixing desk, and they do just that. They probably don’t work as well as my 3” thick clouds that I have adjacent to the BXI panels, but they do help with overall absorption for the room. While I haven’t taken any measurements to see the real effect they have, they work well enough for now. How well will they work for you? Honestly that really depends on what you’re using them for, where you place them, and what you expect out of them. In my opinion, these are great for light duty use. They work better if you stack them.So, in a nutshell, I recommend them for light to medium duty use. If you need serious sound absorption for a music room or home theater, buy or make professional grade panels. For the price, they are worth it. If BXI were to make thicker panels, I’d definitely consider buying more to fill in some of the gaps in my room. 

… Hope this review was helpful!

I use these to block my soundbar from transmitting noise to the floor.

Buen producto pero son pocos por el precio 🙁

This product works well for me. Good value. I only have two issues; the panels are not quite square (but you can make them work in a large pattern without trimming), and after ordering five individual packages, the same colour (tone/shade) has only arrived twice. This creates some nice patterns if you're creative, but be warned, you may want to order what you need in one order to help ensure that the colours match. That said, I will order more because they work as intended. And no funky smell.

I used these in combination with other products for a customized sound dampening solution for my audio device laboratory. The acoustics in my lab space is notably dryer and it really helps to absorb unwanted echoes.