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A Diffractal® (photo courtesy of RPG Diffusor Systems Inc.) | Download Scientific Diagram
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RPG Acoustical Diffusor / Diffuser / Diffractal. Made by RPG. 7 units available. | Reverb
RPG Skyline 4 Inch Diffuser - Home Cinema at Vision Hifi
A Diffractal® (photo courtesy of RPG Diffusor Systems Inc.) | Download Scientific Diagram
QRD diffusers: Technical Reference
RPG Diffusor Systems Abffusor - Acoustic Diffusor ABFFS140824SU
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Reflection Phase Grating Acoustical Systems
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