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DIY Skyline Diffuser Project | Page 2 | AVS Forum
Amazon.com: Acepunch New Quadratic Skyline Acoustic Wooden Diffuser for Studio and Home Recording for Noise Insulation Soundproofing Panel 23.6" x 23.6" x 3.9" inches or 60 x 60 x 10cm AP1204 :
50mm Impression Series Acoustic Panel Diffuser/Absorber – GIK Acoustics Europe
Real Wood Diffuser Square | No EPS or plastic, but good sounding wood! – Avery Acoustics
Help with materials for constructing diffusers | AVS Forum