MDF Core with Veneer

QRD^® 734 has proven to be the most popular and versatile diffusor in the RPG product line. Its wide bandwidth, low cost and a broad selection of finishes make it a logical choice for music education facilities, recording studios, worship spaces, auditoriums, theaters and performing arts facilities. This 1-dimensional diffusor is a modular, computer-designed phase grating that produces a directional hemidisc polar response that can be oriented in any direction. The surface of the QRD^® 734 is designed to provide a more uniform sound field through mid and high-frequency diffusion. In contrast, the natural wood construction of the unit, available in a high recycled content, ULEF, Class A fire-rated and FSC^® MDF core, limits the amount of sound energy removed by absorption.

QRD^® 734F is a one-dimensional sound diffuser developed to expand the product line anchored originally by the classic QRD^® 734 Panel. It is the first product of its kind offered on the market. With a patented folded well design, the QRD^® 734F extends the diffusion bandwidth into the lower mid-range frequencies in only 4-1/4" depth, whereas other diffuser designs require at least 8". The natural wood construction of the unit limits the amount of sound energy removed by absorption while the diffusion performance extends over 4 octaves.

VariDoor™ is the industry's first variable acoustic cabinet with a hybrid diffusive/absorptive surface outside when closed. When the cabinet doors are opened, RPG's hardwood diffusing FlutterFree solid wood plank on the inside is exposed. The cabinet doors can be positioned and adjusted with a Variable Depth Air Cavity (VDAC™) to alter reverberation time, control flutter echo, and correct low-frequency modal problems. The VariDoor™ is designed for multi-use recording and rehearsal spaces in which flexibility is paramount.