Sonic Acoustics 2" X 12" X 12" Acoustic Foam Panels, Pyramid Recording Studio Wedge Tiles, Sound Panels, Sound Absorbing Panel, Soundproofing Isolation Treatment for Walls

Overall pretty good but 3 out of the 12 panels didn’t quite expand to the shape they were meant to.

Ignore the reviews of folks saying they arrived flat; they're compressed, vacuum sealed for easy shipping .. of course they arrived flat! I bought these a year prior and just got to opening them up for use. Bought a 12pk of pyramid pattern and it arrived in a single vacuum sealed package. The inner pack had two vacuum sealed packs containing 6 compressed panels. I tried both methods to revive the foam and both worked, with some notes...If you've never worked with foam before, MOST foam products ship to you flat packed like these did. The leave out and let them rise method works best in a room that remains warm (between 65-75°F) with air flow. Sometimes the panels need more than 48 hours to fluff up, especially if they've been packed for awhile.Of the two methods, the soak and dry method worked best and fastest! A few tips:1. USE HOT WATER. Get the water as hot as you can safely handle and soak the panels one at a time in a sink. Don't drop and flood them... hold them up and soak them under the faucet. If you have a hose you can use, even better. Soak the whole panel. If any edges still look thin or dry, use your fingernails and scratch the edge of the panel. As you scratch it you'll release the pressed edges. I promise they're not sealed or cut wrong. It may take a little effort, but they're fine. Make sure to really wringe them out before throwing them in the dryer. Use MEDIUM HEAT in the dryer for 20 minutes. If they're still damp, throw them in again for 10 minutes.Of the 12 panels, all 12 fluffed up fully however I did take the air fluffed panels and soak/dry them for fullness. These worked GREAT! Sound dampening in a recording corner for half the price!

Not on the thick side, seal was perfect but quality control seems to be the issue with these.Update: I followed method 1, dipped I all of then in a sink with water. Wrung them out and put them in dryer for 25 min in low and all of then opened up nicely. As another reviewer said, these need some patience.

Detailed review (Unpaid/Non Sponsored)I feel that this is a good product and deserves a 5-star rating. Here is why.Pros:-The product measures as advertised.-The product is shipped fast.-This product has a low odor.-This product adheres well with glue spray or other adhesive tapes.-This product is dense and is absorbent. It has multi-groove patterns that will also help absorb a wider range of frequencies vers a typical style pattern.Cons:No many to be honest, but if I have to pick a list of potential drawbacks here we go.-The product is vacuum shrunk to minimize shipping costs. This is a pro when you think of it because the buys save in price, but due to this shipping method you will not pull this out of the box lay it in your space. It will take you about 30-90 minutes depending on if you use a dryer, or if you air dry (would not recommend) but if you do at least 24 hours. Because the seller covers this and it's matched with common sense that these steps will need to be taken., I did not feel that this was worth a negative star but definitely worth noting for those who just read reviews.*If you air dry have the following:1 A clean lint-free space2 Space them so they are not touching3 do not stack them it will warp the foam4 Make sure your space is ventilated5 Make sure that you have an absorbent product under the foam. Towels, have them on Rack or something like that. This way all 6 sides can dry.

These are nice acoustic panels that offer pretty good absorbency and break up of acoustic waves. Their pyramid shape not only looks nice but adds very thickness and a regular surfaces to help them do their job. Adhesion depends on what you put on them, I used 1 cm squares of Nano tape in each corner and in the center for each foam panel and that holds them up very security.They can be used for sound absorption in corners and walls, in both medium sized rooms and smaller near field situations. In my listening room, I put one column on each wall, ceiling to floor, at the corners behind each speaker (electrostatics). That was enough to focus the low end considerably. Rather impressed! Recommended.