The AVAA is a very effective solution to absorb frequencies below 150 Hz.

It is much smaller (up to 25 times) and thinner (up to 15 times at 20 Hz) then any porous material needed to have the same effect.

Therefore it allows saving space and it also avoids over-dampening the higher frequencies which is greatly appreciated.

Compared to resonators, the AVAA is more efficient in terms of equivalent absorption area and acts on a wide range of frequencies, 15 to 150 Hz.