The Proacoustics PRD-000022190 acoustic diffuser set consists of City sound diffusers, designed to distribute early reflections evenly and create a diffuse sound field in the room. They provide minimal sound absorption, and their two-dimensional design is based on a quadratic residue sequence with phase shift.

They are made from high-density, self-extinguishing polystyrene and can be painted in various shades. The perimeter lip allows installation in standard suspended ceiling grid systems, with a minimum clearance of 40 cm from the ceiling, or mounting on a wall. To preserve the surface’s two-dimensional directivity, the diffusers should all be installed in the same orientation.

• Type: Sound diffuser set
• Pieces: 6
• Color: Gray
• Width: 55 cm
• Length: 55 cm
• Height: 13 cm
• Material: High-density, self-extinguishing polystyrene
• Sound diffusion: Uniform
• Sound absorption: Low
• Installation: In standard suspended ceiling grid systems or on a wall
• Minimum clearance from the ceiling: 40 cm
• Painting: Can be painted in various shades
• Installation orientation: The same for all diffusers