MUTE+® cover S90 & S120 – Broadband absorbers for demanding room acoustics
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Maximum sound absorption, high-quality workmanship and a striking, clean design – with the MUTE+® cover S90-W-BA and S120-W-BA broadband absorbers, MUTE+® sets new standards in room acoustics.
Why broadband absorbers?
Low frequencies – the muffled rumble of voices or the reveberation in large conference rooms – present a real challenge for many standard absorbers. Broadband absorbers work across a wide frequency spectrum, capturing both high and low frequencies effectively. With an absorber thickness of 90 or 120 mm, the MUTE+® cover S90-W-BA and S120-W-BA broadband absorbers unleash their full impact precisely where thinner absorbers reach their limits.
Acoustic performance at the highest level
Both versions achieve absorption class A – the highest class according to ISO 11654 – with a sound absorption coefficient αw of 1.00 according to DIN EN ISO 354.
• S90: αw 1.00 | 2,000 × 1,000 mm, total height: 98 mm
• S120: αw 1.00 | 2,000 × 1,000 mm, total height: 128 mm
Design, health & sustainability
The concealed aluminum frame with clean 90° corners gives the absorbers a striking, clean appearance – as an independent design element that integrates seamlessly into any interior concept. Formats of up to 1,000 × 3,000 mm make large-scale installations equally achievable.

The S90 and S120 are equally impressive in terms of health and ecological aspects:
- Mineral fiber-free & allergy-friendly
- Tested for harmful substances according to Oeko-Tex® Standard 100
- 100% recyclable & reusable
In addition, 20 fabric colours are available, along with options such as pinability, magnetic pinning or digital printing – for a personalised, brand-defining finish.
Conclusion
The MUTE+® cover S90-W-BA and S120-W-BA broadband absorbers combine top acoustic performance with well-considered design. For anyone who wants to tackle low frequencies while also adding a visual accent – whether in a conference room, open space or music room.
Interested?
Use our acoustic calculator, download the datasheet or contact us directly.