Acoustic Panels with Sound Absorption Class A & D
HEXAGO acoustic panels combine solid wood, sculptural design and sound-absorbing functionality. Depending on the model, sound absorption class A or D is available, with variable classes in the Professional system.
Sound Absorption to EN ISO 11654
The manufacturer documents sound absorption class A for HEXAGO CM-A, HEXAGO P-A, HEXAGO CM-A Flat and HEXAGO P-A Flat. HEXAGO CM-D and HEXAGO CM-D Flat are specified as sound absorption class D. Technical values and evidence are always assessed by product and project.
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HEXAGO with Sound Absorption Class A
HEXAGO CM-A and HEXAGO P-A are 3D class A acoustic panels. The flat HEXAGO CM-A Flat and HEXAGO P-A Flat variants are also specified by the manufacturer as class A to EN ISO 11654.
Other HEXAGO Acoustic Panels
The CM-A Flat and P-A Flat variants are documented as sound absorption class A. HEXAGO CM-D and CM-D Flat are specified as sound absorption class D, allowing the acoustic solution to be selected according to room, design and required absorption performance.
HEXAGO P-AS Professional
HEXAGO P-AS is a professional acoustic system with variable sound absorption. The manufacturer documents class A with the option to adjust the system to class C or D using interchangeable elements.
View DetailsSound Absorption Classes and Measurements Compared
The 2025 acoustic panel catalogue documents product-specific measurements for CM-A, CM-A Flat, P-A, P-A Flat, CM-D and CM-D Flat. We show αw, NRC, SAA, absorption range and, for the 3D models, the documented diffusion range. P-AS Professional remains a separate system without numerical values derived from this catalogue.
| Model | Class | Format | Thickness | αw | NRC | SAA | Absorption range | Diffusion range | Evidence |
|---|---|---|---|---|---|---|---|---|---|
| HEXAGO CM-A | A | 3D | 92 mm | 0.95 | 1.00 | 0.96 | 200–5000 Hz | 630–4000 Hz | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO P-A | A | 3D | 87 mm | 0.95 | 0.95 | 0.95 | 250–5000 Hz | 400–3150 Hz | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO CM-A Flat | A | Flat | 77 mm | 0.95 | 1.00 | 0.96 | 200–5000 Hz | — | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO P-A Flat | A | Flat | 77 mm | 0.95 | 0.95 | 0.95 | 250–5000 Hz | — | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO CM-D | D | 3D | 92 mm | 0.45 | 0.60 | 0.58 | 200–1000 Hz | 400–3150 Hz | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO CM-D Flat | D | Flat | 77 mm | 0.45 | 0.60 | 0.58 | 200–1000 Hz | — | 2025 acoustic catalogue · product-specific measurements |
| HEXAGO P-AS Professional | A / C / D | Professional | — | — | — | — | — | — | Separate manufacturer system · no measurement table in this catalogue |
Measurements according to the 2025 acoustic panel catalogue: αw to ISO 11654:1997, NRC and SAA to ASTM C423-17; stated diffusion ranges for the 3D models to ISO 17497-2. Values apply to the specific product configuration documented in the catalogue.
Frequently Asked Questions about HEXAGO Acoustic Panels
Which HEXAGO acoustic panels have sound absorption class A?
The manufacturer specifies HEXAGO CM-A, HEXAGO P-A, HEXAGO CM-A Flat and HEXAGO P-A Flat as sound absorption class A to EN ISO 11654.
Which HEXAGO acoustic panels have sound absorption class D?
HEXAGO CM-D and HEXAGO CM-D Flat are specified as sound absorption class D to EN ISO 11654.
What is HEXAGO P-AS Professional?
HEXAGO P-AS is a professional acoustic system. The manufacturer documents class A with the option to adjust the system to class C or D using interchangeable elements. The 2025 acoustic catalogue used here contains no dedicated P-AS measurement table, so numerical values from other HEXAGO variants are not transferred.
Which exact measurements are documented?
CM-A and CM-A Flat: αw 0.95, NRC 1.00, SAA 0.96 and absorption range 200–5000 Hz. P-A and P-A Flat: αw 0.95, NRC 0.95, SAA 0.95 and absorption range 250–5000 Hz. CM-D and CM-D Flat: αw 0.45, NRC 0.60, SAA 0.58 and absorption range 200–1000 Hz. For the 3D models, the catalogue additionally documents diffusion: CM-A 630–4000 Hz and P-A plus CM-D 400–3150 Hz.
Are HEXAGO CM-A Flat and HEXAGO P-A Flat also sound absorption class A?
Yes. CM-A Flat is documented as class A with αw 0.95, NRC 1.00 and SAA 0.96. P-A Flat is also class A with αw 0.95, NRC 0.95 and SAA 0.95. Both Flat variants are 77 mm thick.
Are decorative 3D wood panels automatically acoustic panels?
No. The decorative panels primarily provide design and sound diffusion. The HEXAGO acoustic series is developed for additional sound absorption and is documented with specific sound absorption classes and product-specific measurements.
Who manufactures the HEXAGO acoustic panels?
Form at Wood is the manufacturer. DEKOSTYL is the official distribution and project partner in Germany, supporting product selection, technical documentation, samples and project enquiries.
Solid Wood Acoustic Panels with Defined Sound Absorption Classes
The HEXAGO family includes acoustic panels with different sound absorption classes. HEXAGO CM-A, HEXAGO P-A, HEXAGO CM-A Flat and HEXAGO P-A Flat are specified as sound absorption class A to EN ISO 11654. HEXAGO CM-D and HEXAGO CM-D Flat are specified as class D.
Measurements from the 2025 Acoustic Catalogue
For CM-A and CM-A Flat, the manufacturer documents αw 0.95, NRC 1.00, SAA 0.96 and an absorption range of 200–5000 Hz. P-A and P-A Flat are documented with αw 0.95, NRC 0.95, SAA 0.95 and 250–5000 Hz. CM-D and CM-D Flat reach αw 0.45, NRC 0.60, SAA 0.58 over 200–1000 Hz according to the catalogue. For the 3D models, the catalogue also states diffusion ranges: CM-A 630–4000 Hz, P-A and CM-D 400–3150 Hz.
Plan Acoustic Performance by Product
The measurements apply to the specific product configurations documented in the manufacturer catalogue and are not transferred between variants. The suitable HEXAGO model depends on the room, required absorption effect, frequency range and exact configuration.
Class A, Class D and Variable Acoustics
In addition to the four class A models and two class D models, the range includes HEXAGO P-AS as a professional system whose sound absorption can be adjusted between classes A, C and D using interchangeable elements. The 2025 acoustic catalogue used here contains no dedicated P-AS measurement table.
Technical Evidence for Your Project
DEKOSTYL supports selection of the appropriate HEXAGO variant and aligns available technical documentation with the intended application. Form at Wood is the manufacturer; DEKOSTYL is the official distribution and project partner in Germany.