Modular suspended system with high sound absorbency, designed to improve the acoustics of any interior, even in situations where architectural constraints make it impossible to work directly on the wall or ceiling. A range of four types of panel, featuring different densities of grooving and rear perforations, offering a variety of possible uses with excellent sound absorbency. Panels are installed by attachment to steel cables fixed to the ceiling using a selection of easy-to-use hardware. The rear of the panels is covered with a sound-absorbent film in black non-woven fabric.