RPG Diffusor Systems

Hz	Slotted and unfinished, stained or lightly painted NRC: 0.85	Non-slotted and unfinished, stained or lightly painted NRC: 0.75	Slotted and fully sealed NRC:0.41	Non-slotted and fully sealed NRC:0.40
100	0.95	0.61	1.02	0.61
125	0.98	0.66	0.76	0.66
160	0.83	0.58	0.70	0.58
200	0.77	0.54	0.60	0.54
250	0.90	0.53	0.51	0.53
315	0.75	0.64	0.49	0.49
400	0.81	0.76	0.50	0.50
500	0.93	0.92	0.57	0.57
625	0.86	0.82	0.52	0.52
800	0.80	0.79	0.40	0.40
1000	0.77	0.77	0.34	0.34
1250	0.82	0.78	0.31	0.31
1600	0.80	0.77	0.28	0.28
2000	0.80	0.68	0.24	0.24
2500	0.81	0.75	0.26	0.26
3150	0.77	0.77	0.26	0.26
4000	0.77	0.76	0.26	0.26

Home: Products: DiffusorBlox®

Absorption Coefficients

Specifications

Acoustical Data
Absorption Coefficients
Diffusion Coefficients Transmission Loss

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Rebar Specifications...

Patent Numbers
4,964,486
5,027,920
2,027,658
5,226,267
5,193,318

651-C Commerce Drive, Upper Marlboro, MD, 20774, Phone: 301-249-0044, Fax: 301-249-3912, E-mail: info@rpginc.com