UK DAMPA LookBook 2023 - Flipbook - Page 11
The best acoustic
experience
Porous
absorbent
Acoustics are an essential part of our DNA. Acoustic
solutions in metal combine all three absorbent types,
so it is possible to adapt solutions to the individual room,
whether a solution in acoustic class A, B or C is needed.
The porous absorbent is the soft material found in our
acoustic felt and additional insulation. This absorber is
effective in most frequency ranges, but not low frequency
ranges.
The membrane absorbent occurs in the cavity behind
the metal plate, where the oscillations try to equalize the
sound waves. This absorbent type is a counterpart to
the porous absorbent, as it is most effective in the lowfrequency ranges.
Resonance
absorbent
Like the membrane absorbent, the resonance
absorbent works best in low-frequency ranges. Here, it is
the perforations in the metal surface that create the
absorber. This is because the air plugs in the perforations
create oscillations, where the acoustic felt helps to bring
them to rest.
Membrane absorbent
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