MUTE+ board baffle

Name: MUTE+ board 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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Documents

Datasheet MUTE+ board S24-B Datasheet MUTE+ board S40-B

Description

Baffle of polyester, suspended vertically from the structural ceiling. Free of mineral fibres and allergy-friendly, recycled content of up to 20 percent, 100 percent recyclable and reusable. Baffle height and centre spacing determine the absorption.

Technical data

Material: Polyester

Surface: Gloss level 1 to 5 GU per colour

Fire class (EN 13501-1): B1 · per DIN 4102

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

Colours: white, grey marbled, darkgrey marbled, nightgrey marbled, black, further polyester colours on request

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 27 variants

NRC

—

No NRC for arrays (ASTM C423)

Frequency values

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			Value
1.6 in	16 in	baffle height 14 in, axis spacing 12 in	—
1.6 in	16 in	baffle height 14 in, axis spacing 24 in	—
1.6 in	14 in	baffle height 14 in, axis spacing 12 in	—
1.6 in	14 in	baffle height 14 in, axis spacing 24 in	—
1.6 in	12 in	baffle height 12 in, axis spacing 24 in	—
1.6 in	12 in	baffle height 12 in, axis spacing 12 in	—
1.6 in	12 in	baffle height 12 in, axis spacing 7.9 in	—
1.6 in	7.9 in	baffle height 7.9 in, axis spacing 24 in	—
1.6 in	7.9 in	baffle height 7.9 in, axis spacing 12 in	—
1.6 in	7.9 in	baffle height 7.9 in, axis spacing 7.9 in	—
1.6 in	24 in	baffle height 24 in, axis spacing 24 in	—
1.6 in	24 in	baffle height 24 in, axis spacing 12 in	—
1.6 in	24 in	baffle height 24 in, axis spacing 7.9 in	—
1.6 in	12 in	baffle height 4.1 in, axis spacing 7.9 in	—
1.6 in	12 in	baffle height 4.1 in, axis spacing 3.9 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 7.9 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 9.8 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 12 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 5.9 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 16 in	—
0.94 in	7.9 in	baffle height 7.9 in, axis spacing 20 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 5.9 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 7.9 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 9.8 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 12 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 16 in	—
0.94 in	16 in	baffle height 7.9 in, axis spacing 20 in	—

Test report: H220914M2/1a_rev00

Object area: 126 sq ft

Test setup: baffle height 14 in, axis spacing 12 in

Measured values as a table (27 measurements)

MUTE+ board 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 · 16 in · baffle height 14 in, axis spacing 12 in	–	0.15	0.27	0.48	0.45	0.46	0.44	0.51	0.62	0.79	0.87	0.94	0.98	1.02	1.03	1.03	1.01	1.02	0.99
1.6 in · 16 in · baffle height 14 in, axis spacing 24 in	–	0.10	0.24	0.44	0.37	0.41	0.39	0.42	0.45	0.61	0.71	0.77	0.79	0.83	0.81	0.80	0.81	0.84	0.84
1.6 in · 14 in · baffle height 14 in, axis spacing 12 in	–	0.21	0.34	0.57	0.51	0.53	0.49	0.57	0.65	0.79	0.89	0.95	1.00	1.04	1.02	1.01	1.00	1.00	1.00
1.6 in · 14 in · baffle height 14 in, axis spacing 24 in	–	0.18	0.30	0.50	0.48	0.51	0.51	0.47	0.53	0.63	0.74	0.77	0.78	0.81	0.80	0.78	0.78	0.80	0.81
1.6 in · 12 in · baffle height 12 in, axis spacing 24 in	–	0.16	0.21	0.41	0.50	0.52	0.48	0.45	0.47	0.53	0.64	0.70	0.75	0.77	0.73	0.75	0.73	0.72	0.74
1.6 in · 12 in · baffle height 12 in, axis spacing 12 in	–	0.21	0.30	0.54	0.56	0.56	0.51	0.52	0.58	0.68	0.82	0.92	0.99	1.01	0.97	0.97	0.96	0.93	0.97
1.6 in · 12 in · baffle height 12 in, axis spacing 7.9 in	–	0.23	0.37	0.67	0.59	0.61	0.54	0.57	0.65	0.79	0.94	0.99	1.06	1.07	1.06	1.06	1.04	1.03	1.07
1.6 in · 7.9 in · baffle height 7.9 in, axis spacing 24 in	–	0.11	0.14	0.28	0.38	0.39	0.48	0.43	0.45	0.46	0.50	0.54	0.56	0.59	0.59	0.58	0.59	0.59	0.58
1.6 in · 7.9 in · baffle height 7.9 in, axis spacing 12 in	–	0.14	0.18	0.39	0.50	0.47	0.60	0.59	0.55	0.55	0.61	0.72	0.82	0.84	0.84	0.85	0.83	0.83	0.84
1.6 in · 7.9 in · baffle height 7.9 in, axis spacing 7.9 in	–	0.14	0.21	0.46	0.56	0.52	0.64	0.62	0.58	0.60	0.71	0.84	0.93	0.95	0.98	1.00	0.98	0.98	0.98
1.6 in · 24 in · baffle height 24 in, axis spacing 24 in	–	0.34	0.41	0.43	0.45	0.47	0.48	0.63	0.68	0.80	0.85	0.90	0.92	0.91	0.89	0.90	0.89	0.90	0.92
1.6 in · 24 in · baffle height 24 in, axis spacing 12 in	–	0.44	0.54	0.48	0.46	0.55	0.63	0.81	0.81	0.94	0.98	1.04	1.06	1.08	1.07	1.08	1.05	1.06	1.06
1.6 in · 24 in · baffle height 24 in, axis spacing 7.9 in	–	0.54	0.64	0.54	0.47	0.61	0.74	0.87	0.88	0.99	1.02	1.07	1.08	1.10	1.07	1.11	1.10	1.11	1.13
1.6 in · 12 in · baffle height 4.1 in, axis spacing 7.9 in	–	–	0.12	0.21	0.31	0.39	0.40	0.40	0.45	0.49	0.59	0.72	0.76	0.83	0.85	0.89	0.93	0.92	0.95
1.6 in · 12 in · baffle height 4.1 in, axis spacing 3.9 in	–	0.11	0.19	0.30	0.46	0.56	0.55	0.56	0.58	0.66	0.74	0.89	0.94	1.00	1.01	1.04	1.10	1.09	1.12
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 7.9 in	–	0.14	0.19	0.37	0.48	0.44	0.55	0.55	0.52	0.53	0.60	0.70	0.80	0.89	0.91	0.96	0.94	0.90	0.91
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 9.8 in	–	0.13	0.15	0.31	0.44	0.46	0.49	0.52	0.51	0.53	0.54	0.64	0.74	0.81	0.84	0.88	0.87	0.89	0.90
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 12 in	–	0.12	0.13	0.31	0.43	0.44	0.48	0.48	0.49	0.50	0.50	0.59	0.71	0.76	0.77	0.83	0.81	0.77	0.80
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 5.9 in	–	0.13	0.15	0.36	0.48	0.51	0.51	0.52	0.54	0.58	0.64	0.77	0.88	0.94	0.97	1.06	1.04	1.02	1.05
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 16 in	–	0.11	0.12	0.28	0.40	0.40	0.45	0.45	0.44	0.45	0.48	0.54	0.61	0.65	0.67	0.70	0.71	0.67	0.72
0.94 in · 7.9 in · baffle height 7.9 in, axis spacing 20 in	–	0.10	0.11	0.25	0.36	0.36	0.41	0.38	0.40	0.42	0.42	0.48	0.53	0.57	0.57	0.60	0.61	0.57	0.60
0.94 in · 16 in · baffle height 7.9 in, axis spacing 5.9 in	–	0.13	0.14	0.37	0.41	0.37	0.40	0.45	0.54	0.71	0.76	0.83	0.95	0.98	1.03	1.07	1.11	1.08	1.13
0.94 in · 16 in · baffle height 7.9 in, axis spacing 7.9 in	–	0.11	0.13	0.35	0.38	0.34	0.37	0.40	0.48	0.65	0.70	0.76	0.89	0.92	0.98	1.00	1.03	1.00	1.06
0.94 in · 16 in · baffle height 7.9 in, axis spacing 9.8 in	–	0.11	0.12	0.33	0.36	0.32	0.36	0.37	0.43	0.58	0.64	0.68	0.83	0.85	0.89	0.91	0.92	0.91	0.96
0.94 in · 16 in · baffle height 7.9 in, axis spacing 12 in	–	0.10	0.11	0.31	0.35	0.31	0.35	0.35	0.41	0.54	0.59	0.66	0.77	0.81	0.84	0.86	0.87	0.86	0.87
0.94 in · 16 in · baffle height 7.9 in, axis spacing 16 in	–	–	–	0.26	0.31	0.28	0.32	0.31	0.35	0.47	0.54	0.58	0.66	0.70	0.74	0.74	0.76	0.77	0.81
0.94 in · 16 in · baffle height 7.9 in, axis spacing 20 in	–	–	–	0.23	0.27	0.24	0.28	0.28	0.31	0.41	0.46	0.54	0.61	0.62	0.63	0.66	0.66	0.63	0.67

Measured values as a table (27 measurements)

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Last updated: 10/19/2026

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