The panel includes a frame formed by profile members (6) and a plate member (10) extending therebetween. A textile (11) extends between the profile members which are formed by bending an edge area of a metal plate (15) forming the plate member (10), thereby forming said profile members in one piece with the plate member. Said edge area forms a rounded edge (16) connecting the plate member with the profile member. The profile member includes a first oblique section (21) of the metal plate forming an acute angle with the plate member and having a first end being connected to the rounded edge. The textile is bent about the rounded edge, and an edge element (24) attached along an edge (12) of the textile is adapted to slide along the first oblique section and is spring-biased in the direction of a second end (23) of the first oblique section.