Due to the way these products are acoustically tested, it is not possible to give an sound absorption coefficient or class rating (as per EN ISO 11654), as is standard with a full suspended ceiling. However, similar core material is used as with Ecophon products which do achieve the Class A rating.
Test results according to EN ISO 354:
Aeq, Equivalent absorption area per unit (m² sabin)
Size | Aeq, Equivalent absorption area per unit (m² sabin) | |||||
125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | |
Ø600 | 0.0 | 0.2 | 0.5 | 0.6 | 0.4 | 0.4 |
Ø800 | 0.1 | 0.4 | 0.8 | 0.8 | 0.7 | 0.6 |
600x600 | 0.1 | 0.1 | 0.6 | 0.6 | 0.5 | 0.5 |
1200x300 | 0.1 | 0.1 | 0.6 | 0.6 | 0.5 | 0.5 |
1200x600 | 0.2 | 0.6 | 1.0 | 1.1 | 1.0 | 0.9 |