Wall Sound Absorbers – Top Acoustic Solution with Absorption Class A | Swiss Design

Wall sound absorbers are an essential element for rooms where concentration, communication, and atmosphere are crucial. Whether in open-plan offices, conference rooms, or learning environments, disruptive reverberation is stressful, impairs communication, and reduces performance. The solution: acoustically effective wall elements that are both functional and aesthetically pleasing.

The felt-based surface effectively absorbs sound, even at low frequencies. The result is a noticeable acoustic relief, which not only improves room quality but also promotes concentration and reduces stress. At the same time, the absorbers act as a design element that brings structure and tranquility to the visual perception of the space.

Available in various shapes, colors, and sizes, the wall sound absorbers can be individually adapted to any room concept – from subtle to striking, from functional to architecturally demanding. The simple installation with L-profiles makes the process efficient and sustainable. An investment that visibly brings calm – and perceptibly works.

FAQ

What exactly does a wall sound absorber do?

A wall sound absorber reduces reverberation and improves speech intelligibility. This provides more quiet, less stress, and better working or learning conditions – especially in offices, meeting rooms, and educational spaces.

Wall sound absorber or soundproofing: What's the difference?

A wall sound absorber improves acoustics within the room (reverberation and reflections are reduced).

What absorption coefficient / NRC value does the wall sound absorber have?

The NRC value depends on the thickness and the distance from the wall:

• 12 mm: NRC up to 0.85 (at 200 mm distance), αw up to 0.90

• 24 mm: NRC up to 0.95 (at 200 mm distance), αw up to 1.00
  Tip: A distance from the wall noticeably increases the effect.

For which frequencies is a wall sound absorber particularly effective?

A wall sound absorber is particularly effective in the range where speech becomes "intelligible." The curves show absorption from approx. 125 Hz to 4000 Hz, depending on the mounting method and distance.

How many wall sound absorbers do I need?

As a starting point, 20–40% of the floor area often works as absorber surface (more with lots of glass/concrete). For quick improvements: first treat the "reverberant" zones, then expand as needed.

What shapes, sizes, and colors are available?

The wall sound absorber is available in square, rectangular, and round shapes, in several sizes (e.g., 118×118 cm, 238×118 cm, Ø 118 cm, Ø 180 cm – depending on the version). There are also various colors for subtle or striking room design.

Can I combine wall sound absorbers with other solutions?

Yes. For a holistic result, wall sound absorbers are often combined with zoning and ceiling solutions, e.g., with acoustic wall panels, mobile room dividers, or acoustic partitions. All variants can be found under Room Acoustics.

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The products ordered are delivered on pallets for easy self-assembly – see "Assembly Instructions" in the product description.

For products exceeding the standard pallet size of 80 x 120 cm, delivery will be made (to avoid transport damage) on one-way pallets. These will not be collected.

Upon request, assembly can be booked under the following conditions: 2-man CHF 199.- per hour incl. vehicle and tools (travel from Zurich will be charged, packaging material will be disposed of). Service on request.

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