Manufacturer

Lindner Group

Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.

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MUTE+ cover broadband absorber

Description

Broadband absorber with an aluminium frame, fabric covering of polyester or wool and acoustic filling. Free of mineral fibres and allergy-friendly, 100 percent recyclable and reusable. The frame sits concealed behind the covering.

Technical data

Material: Aluminium frame, covering of polyester or wool
Surface: Fabric covering
Up to fire class: B1 — per DIN 4102, wool covering B2
Certifications: Oeko-Tex Standard 100 (S24-3191, Hohenstein HTTI)
Colours: 20 standard colours, covering of polyester or wool

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 2 variants

Aobj
2.40
at 1 kHz

Frequency values

Aobj per ISO 354 · third-octave band (m²)

f (Hz)125160200250315400
Aobj1.102.101.902.402.302.30

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CompareValue
90 mm98 mmAobj2.40
120 mm128 mmAobj2.10

Test report: H250804P1/2_rev01

Institute: GiB mbH, Arnstorf

Room volume: 208.5 m³

Application: absorber 2000 x 1000 mm

Terms of use
Measured values as a table (2 measurements)
MUTE+ cover broadband absorber: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upαw100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
90 mm · 98 mm · absorber 2000 x 1000 mm (Aobj, m²)1.102.101.902.402.302.302.602.402.402.402.302.402.202.102.202.101.90
120 mm · 128 mm · absorber 2000 x 1000 mm (Aobj, m²)1.301.702.902.302.702.602.502.602.202.202.102.002.002.002.002.302.102.00
Measured values as a table (2 measurements)

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