t.akustik WDS-7 Diffuser Set 8pcs

It is a plain styrofoam you usually get for free as a packaging material for various purchases. I could have gone to the civic amenities site and get a same thing for free.

It is unpolished, unfinished, plain, raw material that leaves tons of dust particles behind. In order to be able to use it, one would need to paint it first. For 88 euros worth of a product?!? Are you kidding me?
The worst purchase in my life. Period.

Good but if you place them on the ceiling be careful it might "snow" on you for the first few days ;)

breaks easilly. Not sure it does anything. Diffusers should be a harder material. This is just styrofoam

These are actually a good value for money.and after painted, they look quite beautiful. The problem for me was to paint it, it took me ~2 days to paint the 8pcs with acrylic primer, just 1 coat. I was annoyed that it was taking so long, and I tried to paint with spray paint over the primer coat. The second one started to melt so I stopped doing it. In the end, I just fixed them with just 1 coat of primer. I'm not giving it a 5 because of the work you'll might have to paint it and also clean the styrofoam, a lot ot mess.

I have a rather small basement studio with concrete walls and was in desperate need of absorbers and bass traps. I haven’t measured the room before/after but the installation of these made a huge audible difference. The set included 4 bass traps (two boxes), 16 absorbers (two boxes), 8 diffusers (one box) and glue. The diffusers made out of Styrofoam felt kind of cheap but does their job on the back wall. All in all the room is less “hard” and much more comfortable to work in now.

The diffusers are really working and they did made a difference in my small dead sounding recording room . The negative thing that i have to mention is that you will have to paint them in order to prevent them of becoming dust ! If you don t mind painting them they do really work .

The material is very poor and bad

Box was full of grit and dust, polystyrene was low quality. Spend your money on something better.

I was read that they are very thin and fragile,but that is not thru at all.
To broke them you have to apply very strong push.

This isn't the best quality on the market, but it definitely does the job I required it to do which was just to diffuse a certain area of the studio without needing to use the highest quality product. Has done the job and still have plenty spare for future projects