Sonic Design Form® - Diamond

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Our Most Versatile Sonic Design Form. These panels offer an array of design possibilities. Whether you’re looking for a unique acoustical solution for the ceilings or walls, the Diamond combines the flexibility of a multitude of configurations and acoustical fabric options.



  • 1" Base is 1.25 lb per sf
  • 2" Base is 1.75 lb per sf
  • Available in multiple thicknesses
  • Custom sizes can be special ordered

Fire Rating

  • All components are ASTM E84—Class I/A


Acoustical Data

Frequency (Hz) 125 250 500 1000 2000 4000 NRC
Arch Small Size 0.36 0.67 0.98 1.03 0.99 0.96 0.90

Testing performed at an accredited acoustical laboratory within a controlled environment using specific fabric, sizes and mounting. Therefore, ratings may vary slightly depending on customers fabric choice and mounting configuration.

Fabric Finishes for Acoustical Panels

Your acoustical panel finish choices are endless. Choose your own material, or here are some links provided to a few of our recommended textile manufactures for your fabric selection. Please note not all fabrics are suitable for premium acoustical performance.

Select a fabric from one of our manufacturers:

Guilford of Maine
Knoll Textiles
Luna Textiles
Carnegie Fabrics