Premium sound absorber Smooth
Premium sound absorber Smooth
With rounded edges, Soundproofing and Flame Protection Plus SH004 MH
Premium sound absorber Smooth
With rounded edges, Soundproofing and Flame Protection Plus SH004 MH

Premium sound absorber Smooth

With rounded edges, Soundproofing and Flame Protection Plus SH004 MH
Highly effective sound absorber with rounded edges, fire protection plus and maximum soundproofing effect
  • Extra fine-pored thermoset acoustic foam for maximum sound absorption
  • Extraordinary heat and flame resistance conforming to fire protection class DIN 4102 B1
  • Formats: 50 x 50 cm, 100 x 50 cm, 120 x 58 cm with rounded edges in various material thicknesses
  • Available in white grey and titanium grey
  • Wide range of applications in room acoustic optimisation, e.g. for soundproofing in offices, meeting rooms, living rooms, recording studios, home cinemas
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You will receive a total of 1 packing unit with the following content:

Premium sound absorber Smooth SH004 MH

1 Pack =
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Sound absorber SH004 MH – Flame protection plus with rounded edges

  • Square sound absorber with rounded edges and fire protection class DIN 4102 B1
  • The perfect element for a creative and varied room design
  • Ideal both for sound insulation and soundproofing, and very effective even with small material thicknesses
Stacked sound absorbers with rounded edges and fire protection class DIN 4102 B1

Product data

Format, surface Square panel (50 cm x 50 cm,100 cm x 50 cm, 120 cm x 58 cm), flat surface, rounded edges
Material thicknesses 4 cm, 6 cm, 8 cm
Special sizes Special sizes possible upon request
Material Thermoset acoustic foam
Colours White-grey, titanium grey
Fire classes DIN 4102 B1
More information about the fire classes of our sound absorbers is available the relevant aixFOAM knowledge article (German).
Fastening options Without, self-adhesive kit, assembly/ hanging cassette without accessories, assembly / hanging cassette with vibration anchors, assembly / hanging cassette with suspension system Basic or suspension system Style
In order to install the assembly cassettes, two absorbers are required for each cassette for this product.
Assembly recommendation Laying with or without shadow joint possible More information about this is available in our relevant aixFOAM knowledge article (German) about the subject "What is a shadow joint?“.
Temperature­resistance - 200 °C to + 200 °C
Thermal conductivity 0,032 – 0,038 W/mK
UV-resistance Maximum UV resistance, does not yellow
Harmful substance information Certified according to Eco-Tex Standard 100 as not harmful to health, mineral-fibre free, CFC-free, propellant-free
Tolerance This high quality acoustic product is made on our precision machinery according to DIN 7715 Part 5 P3.
In the production (foaming) of this acoustic material different sized pores (voids) can arise. Voids are typical for the material, do not represent a quality defect and do not affect the acoustic properties of the absorber.

More information about this product is available, if required, in the accompanying datasheet. We are happy to provide you with this upon request.

For those who expect more - aixFOAM Premium sound absorbers

Our sound absorbers made of thermoset acoustic foam are the ideal solution for rooms with particularly high soundproofing and fire protection requirements. They owe their unsurpassed acoustic properties to the extremely fine, open pore structure that almost completely absorbs sound. They are flame retardant without the addition of flame retardants and thus meet many regulations to ensure fire safety in public buildings.

Schallabsorber/ Schallschutz im Hallraum bei der Ermittlung der Absorptionswerte
  • Maximum sound absorption
  • Flame retardant according to DIN 4102 B1
  • Form-stable and colour-fast – no yellowing!
  • Very low weight
  • Antistatic, fibre-free and elastic

Absorption values

The measurements of the sound absorption coefficient were determined according to DIN EN ISO 354 (reverberation room) and refer to an absorber area of 50 cm x 50 cm.

Sound absorption coefficients for SH004 MH in white-grey

4 cm
6 cm
8 cm
125 Hz 0,10 0,14 0,16
250 Hz 0,37 0,60 0,82
500 Hz 0,85 0,92 1,00
1000 Hz 0,89 1,00 0,99
2000 Hz 0,94 1,03 1,04
4000 Hz 1,01 1,02 1,06

Sound absorption coefficients for SH004 MH in dark-grey

4 cm
6 cm
8 cm
125 Hz 0,14 0,20 0,26
250 Hz 0,31 0,51 0,71
500 Hz 0,57 0,77 0,93
1000 Hz 0,76 0,89 0,97
2000 Hz 0,85 0,97 1,01
4000 Hz 0,90 0,97 1,02
Sound absorber/ sound insulation in the reverberation chamber when calculating the absorption coefficients
Our aixFOAM sound absorbers have been tested for Hertz and pores in the reverberation chamber of renowned institutions such as RWTH University or the Technical University in Aachen. The sound absorption coefficients according to DIN 52212 stated above were calculated in extensive measurements.

Profit from sound insulation directly from the manufacturer!

At aixFOAM we make sound insulation for applications in room acoustics and technical acoustics. And because we do this particularly well, we have been doing it for 60 years. Over this time we have been constantly working on the further development of our products and therefore are able to offer you highly effective sound absorbers in a modern design.

Our aixFOAM philosophy: We combine customer-oriented advice with the individual, needs-based production of sound insulation solutions. Or in other words: We help you with free advice to find the ideal sound insulation for your project and start to make your absorbers directly after receiving your order. You then receive your sound insulation directly from the factory – naturally in the best quality.

  • Use of high quality acoustic foams from Germany
  • Precision manufacturing on the latest CNC cutting machines and systems
  • Standard solutions or individual small and series manufacturing of noise insulation
  • Advice, planning, production and brokering of assembly partners
An aixFOAM employee manufactures sound absorbers for sound insulation.
Brand qualityt
from the manufacturer
"Made in Germany"
for you, individually
in a few days
for 60 years
soundproofing experts
ISO 9001:2015 certified
The aixFOAM acoustic experts advise you on the subject of sound insulation free of charge.

„SH004 is a very flexible sound absorber with high sound insulating and soundproofing effect. The square panels can be installed creatively, for example in a chessboard pattern, as full wall or ceiling covering or as a kit system in a hanging cassette. Because of the rounded edges, the sound absorbers can also be installed without shadow joints, as a result a very consistent pattern is created.“

Holger Thoma, customer advisor

We are here for you!

Do you need help or do you have any questions about the product?

Use our help area with brief answers to the most frequently asked questions from our customers.

Of course we are happy to help you with advice, free of charge.

+49 2403 / 83830 - 22
Monday to Friday
08:00 hours to 17:00 hours
Daily from 00.00 – 24.00 hours


This is where you can find some application pictures of our sound absorber SH004 MH.