TroyStudio Periodic Bass Traps - 4 X 4 X 12 Inches 12 Pcs Dense Studio Acoustic Foam, Acoustic Bass Corner Reduce Reverb Echo, Acoustical Treatment Sound Foams for Home, Office Recording Studio

Great! Sometimes the pattern doesnt line up perfectly, so you might need to mix and match within the pack. We used small pins to adhere onto wall. No smell, great quality.

Están increíbles, pero llegaron 2 qué tienen otra forma, igual no es problema, solo se ven muy diferentes.

Half turned up out of shape - even after waiting hours to see if they would expand they were still wonky..

Wasn't expecting much from these small "bass traps": they're small, lightweight foam. Mostly I wanted something to cover the vertical corners of my vocal booth and these did this perfectly. Turns out they do have a slight positive effect on reducing bouncing mids and highs, and do help tighten up the sound. And they look cool. The included instructions for unpacking them is a little sparse, and even after 48 hours of sitting quietly in a "well ventilated" area, they were still not fully expanded. I decided to rinse them in warm water and carefully wring them out. 24 hours later they were all perfect. So, there you have it. These won't help with deep booming bass, but they might help with mids and highs if you're using these in a small vocal booth or closet. Recommended with the above caveats.

Son esponjas suaves de mala calidad en material y corte, además al venir al vacío se deforman y al expandirlas (qué me llevó días) ya no regresan a su forma original, por lo que termine con algunas piezas sin usar y otras que use pero se nota qué están chuecas.