Candyacoustics - Urnäsch - Schweiz
Candyacoustics - Urnäsch - Schweiz

RPG FlutterFree T


FlutterFree T is an attractive, furniture grade acoustical wood plank designed for mid-high frequency sound diffusion. To achieve mid-band diffusion, RPG optimized an asymmetric well structure to reduce periodicity effects when installed properly.


Panel Dimension (mm): 100x26

Lenghts: 1000mm as standard, available up to 2400mm








The phase grating surface of the FlutterFree-T is designed to provide maximum uniformity for the ambient sound field through high frequency diffusion while the solid wood construction of the unit limits the amount of sound energy that is removed by absorption. The computer optimized, asymmetric pattern of wells provides the basis for being able to optimize an array of planks in an aperiodic fashion, which provides the best performance available today.

In addition, the “T” well innovation at each plank junction offers lower frequency diffusion performance than is otherwise possible in such a shallow depth. Its durability and broad selection of finishes make it a logical choice for worship spaces, recording studios, music education facilities, auditoriums and performing arts facilities.

FlutterFree is available in a wide variety of finishes, including natural hard and soft woods, stains and painted finishes to match any manufacturer color code. It can be mounted to virtually any surface and can be configured to offer low frequency absorption.


  • Offers high frequency sound diffusion in a decorative, solid wood plank.
  • Comes in a variety of finishes, including natural hard and soft woods, stains and custom paint colors.
  • Simple installation direct to wall surface or on furring strips for required cavity for low frequency Helmholtz absorption mounting.


RPG FlutterFree T