UMIACOUSTICS 4 PCS Acoustic Panels, 2“ Thick 23.6" x 11.8" Fiberglass Sound Absorbing Panels, Soundproof Panels for Studios, Office, Home Theater. Charcoal Grey

After buying a new TV, it's sound comes from the whole screen. The problem is as much sound comes out the back as the front. A loudspeaker would kill all the rear sound by having absorbent material at the rear. I put these directly behind the TV, it killed dead any rear reflections. A bit expensive, but it worked.

Overpriced, and at best moderately effective.

Excellent quality panels and excellent customer service. These panels definitely help to reduce echoes and reverberation in my home theatre room. I can't say enough about their customer service. I contacted customer service as I was looking for advice on an alternate way to hang these panels. I did not want to permanently stick the panels to the wall. Upon asking, they then explained that they have brackets for these panels. They then proceeded to send me the hangers free of charge. The brackets were pretty straightforward and easy to hang. I couldn't be happier.

Easy to install & they absorb most if not all of the echo & reflection distortion, made a huge difference in my surround system & my system is high quality with a dedicated OSD nero xa 5180 . my system is performing better than ever before with these panels & other foam sound absorption 12×12 panels

One year later and still stuck to the wall. Helped reduce the noise around the laundry room..

These work great and look great, what more can you ask for? I got three packs of these and wow do they make a difference when listening to my stereo system. I'm very much a believer in room treatment now and these are wifey approved. Enough said.

With 12 foot high walls and a vaulted ceiling, the sound from our cabin’s living room echoed loudly in the loft. After installing these acoustic panels, there was a noticeable difference, but still echoed. We’d probably benefit from two more sets to get the desired results. Thankfully, the panels themselves are attractive, albeit plain, and we’re looking forward to the aesthetic of mixing gray panels with the black. The panels themselves are heavier than expected, but mounted easily to the walls and the adhesive has held them firmly in place. I don’t know much about sound absorption and decibels. All I needed was a solution to reduce the echo upstairs, and these panels are the way to go.