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The FlutterFree^® Plank is an attractive, furniture-grade, solid wood molding that provides high-frequency diffusion. As a simple plank product, it is often incorporated into wall and ceiling assemblies that, in addition to high-frequency diffusion, can also provide low-frequency absorption for bass control in technology spaces. A back-slotted configuration transforms the FlutterFree^® Plank into a hybrid product that offers sound absorption just below the sound diffusion bandwidth, extending the overall bandwidth of the product to solve multiple room acoustic issues in one attractive product.

The FlutterFree^® T Plank is an attractive, furniture-grade solid wood molded acoustical plank developed using RPG’s patented Aperiodic Modulation of a Single Asymmetric Optimized Base Shape. This technique produces a new optimized, asymmetric profile with folded wells to improve the diffusion bandwidth. When this new profile, with “L” shaped folded side wells, is mounted in an aperiodic fashion, “T” shaped wells are formed between adjacent units, providing dramatically improved performance over the traditional designs. A back-slotted configuration transforms the FlutterFree^® T Plank into a hybrid product that offers sound absorption just below the sound diffusion bandwidth, extending the overall bandwidth of the product to solve multiple room acoustic issues in one attractive product.

FlutterFree^® W Plank is an attractive, furniture-grade, solid wood molding that provides high-frequency diffusion. When paired with RPG's Waveform^TM profiles such as Gaussian and Spline, they create an optimized serpentine Waveform^TM shape that produces an assembly capable of very broadband diffusion and extended low-frequency absorption. A back-slotted configuration transforms the FlutterFree^® W Plank into a hybrid product that offers sound absorption just below the sound diffusion bandwidth, extending the overall bandwidth of the product to solve multiple room acoustic issues in one attractive product.