Linear aesthetics and acoustic performance. The 4sound® collection combines geometric precision, architectural continuity, and acoustic control within a slatted system designed for contemporary environments. The tongue-and-groove joint eliminates the perception of connections, creating continuous and rhythmic surfaces that enhance depth, proportions, and the formal clarity of the space. Available in different groove configurations — 32 mm, 16 mm, 8 mm, and 4 mm pitch — the collection allows the modulation of visual density, material effect, and acoustic response according to specific design requirements. The panel’s technical structure is engineered to ensure high acoustic absorption performance, contributing to reverberation reduction and improved speech intelligibility in high-traffic environments.