MUTE+ frame baffle

Name: MUTE+ frame baffle
Brand: Lindner Group

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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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Datasheet

Description

Baffle made of polyester with fabric covering and visible frame, can be mounted individually or joined into larger modules. Free of mineral fibres and allergy-friendly, recycled content of up to 20 per cent, 100 per cent recyclable and reusable.

Technical data

Material: Polyester, cover fabric of polyester or wool

Surface: fabric covering on both sides in the visible polyester frame

Fire class (EN 13501-1): B1 · per DIN 4102 by component: absorber and polyester cover fabric B1, wool cover fabric B2

Certifications: Oeko-Tex Standard 100 (S24-3191, Hohenstein HTTI), Indoor Air Comfort GOLD, emission class A+ (VOC, France)

Colours: Frame in 5 colours, cover fabrics of polyester or wool, 30 colours in the stock range

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 6 variants

NRC

—

No NRC for arrays (ASTM C423)

Frequency values

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		Value
12 in	baffle height 12 in, axis spacing 24 in	—
12 in	baffle height 12 in, axis spacing 12 in	—
12 in	baffle height 12 in, axis spacing 7.9 in	—
24 in	baffle height 24 in, axis spacing 24 in	—
24 in	baffle height 24 in, axis spacing 12 in	—
24 in	baffle height 24 in, axis spacing 7.9 in	—

Test report: H231016P1/4a_rev00

Institute: GiB mbH, Arnstorf

Room volume: 7,363 cu ft

Object area: 116 sq ft

Test setup: baffle height 12 in, axis spacing 24 in

Measured values as a table (6 measurements)

MUTE+ frame baffle: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz
1.6 in · 12 in · baffle height 12 in, axis spacing 24 in	–	0.17	0.22	0.41	0.50	0.52	0.48	0.46	0.47	0.52	0.62	0.69	0.74	0.76	0.72	0.74	0.74	0.73	0.76
1.6 in · 12 in · baffle height 12 in, axis spacing 12 in	–	0.20	0.31	0.54	0.55	0.56	0.52	0.52	0.59	0.68	0.81	0.93	0.99	1.01	0.96	0.98	0.94	0.93	0.96
1.6 in · 12 in · baffle height 12 in, axis spacing 7.9 in	–	0.23	0.37	0.66	0.59	0.61	0.54	0.57	0.65	0.79	0.95	1.00	1.06	1.07	1.06	1.06	1.06	1.05	1.06
1.6 in · 24 in · baffle height 24 in, axis spacing 24 in	–	0.32	0.41	0.42	0.43	0.45	0.48	0.65	0.69	0.81	0.88	0.93	0.94	0.93	0.90	0.91	0.91	0.91	0.93
1.6 in · 24 in · baffle height 24 in, axis spacing 12 in	–	0.44	0.54	0.46	0.43	0.52	0.63	0.81	0.81	0.94	0.99	1.05	1.08	1.09	1.06	1.09	1.06	1.06	1.07
1.6 in · 24 in · baffle height 24 in, axis spacing 7.9 in	–	0.53	0.64	0.51	0.44	0.58	0.74	0.87	0.89	1.00	1.02	1.08	1.09	1.10	1.08	1.11	1.10	1.10	1.12

Measured values as a table (6 measurements)

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Last updated: 11/02/2026

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