Profoam Absorption Coefficients

Hz	Flat Polyflex NRC: 0.70	ProFoam 1 Layer: 2''	ProFoam 2 Layers: 3''	ProFoam 3 Layers: 4''
125	0.06	0.14	0.13	0.26
160	0.09	0.13	0.34	0.68
200	0.07	0.16	0.47	0.99
250	0.15	0.30	0.61	1.07
315	0.37	0.42	1.22	1.44
400	0.51	0.66	1.27	1.35
500	0.76	1.08	1.19	1.21
625	1.03	1.26	1.20	1.35
800	1.10	1.14	1.21	1.40
1000	1.09	1.11	1.22	1.36
1250	0.94	1.00	1.19	1.26
1600	0.91	0.96	1.08	1.17
2000	0.86	0.99	1.06	1.17
2500	0.87	0.99	1.05	1.14
3150	0.91	1.03	1.06	1.13
4000	0.95	1.01	1.09	1.14

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