Acoustic Foam Bass Traps -12 Pack Wall Corner Studio Foam Blocks 12" X 7" X 7" Low-Frequency Sound Absorption Material for Home Studio and Theater etc. (12 Pack, Bass traps)

Excelentes trampa de grabes si disminuye el eco en mi estudio de grabación muy recomendable

A lot of people are having issues with the product not going back to its original size. The directions in the product pics show to take a blow dryer to it and it will expand and they do. I took it one step further and put several in the clothes dryer on high heat for 10 minutes and they came out perfect!

These are pretty small to be considered actual "bass" traps, but they absorb what you would expect for their dimensions. They take almost a week to fully expand, so be patient. They end up looking pretty decent.

Excelente material y cumple con su funcion

So I had these (bass traps) before buying panels so I didn't appreciate how these almost immediately rise. The panels needed water, these bass traps didn't. Worth it.