Manufacturer
raumton
raumton GmbH from Berlin plans, manufactures and installs sound absorbers for rooms in which people speak: open-plan and single offices, conference and presentation rooms, play and learning rooms as well as meeting and dining areas. The range runs from ceiling and wall absorbers through baffles, stretch ceilings and cubes to free-standing partition and floor absorbers. The absorber core is melamine resin foam or PET acoustic fleece, both free of artificial and natural mineral fibres, halogens and CFCs. For the fabric covering, more than 300 colours and textures are available in polyester, pure new wool, blended fabrics or non-combustible glass fabric. All products are made to bespoke dimensions.
Documents
raumton round wall absorber
Round wall absorber
Description
The round wall absorber has a core of PET acoustic fleece and is fixed directly to the wall with a mounting rail. Placed singly or as a group of different diameters, it becomes a design element. The covering is available in polyester, pure new wool, blended fabrics or non-combustible glass fabric, with a wide choice of colours.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.60 | 1.00 | 1.00 | 1.00 | 1.00 |
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Method (354): Measured
Mounting type: Type A – Direct on rigid wall (ASTM E795: A mounting, direct)
NRC: 0.90 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
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