Quadra satisfies today’s University’s lecture theatre and modern auditorium requirements; it is suitable for management meetings and concert venues. Quadra can be widely customized in different measures and finishes. The seat’s noiseless movement is provided with rubber dampers. Quadra can be delivered with an antipanic writing tablet, resting inside the armrest. Base, upperarms, underseat and backrest panels are available in customised finishes. The holes on the underseat panel increase the acoustic sound absorption. The inner structure is a rectangular steel pipe, 40 x 80 mm, 2 mm thick. The outside box is made from cross laminated wood 8 mm thick, with glued padding in F/R Polyurethane foam, 10 mm thick, density 50 Kg/mс. The seat structure is from laminated beech wood thick 15 mm, with steel pivots for seat’s rotation and side support installation. The upholstery is in quality leather or fabric.