t.akustik PET Wall Absorber 60 BK

I was very impressed by how well these work, I had a "ringing" sound from a wall in the room when doing a "clap test". I put one of these randomly on the wall in the general area and the noise vanished.

The negative (for home cinema use) is the silly stuck on "logo dot". It's shiny and bright and ruins the look. I cut them off with a knife but it's tricky to do that without damaging the surface. They could pit a proper label/logo on the rear side as likely no one will even recognise the pattern of the "dot" one.

Amazing product and efficient ! Would absolotelly buy another set once i will move to my new home !