A connection device for setting up an arrangement of a plurality of loudspeaker boxes that are suspended beneath one another comprises a first assembly rail which is provided for assembly on a first loudspeaker box and to which a latching part is attached, and a second assembly rail which is provided for assembly on a second loudspeaker box and to which a retaining element that interacts with the latching part is attached. Herein, a free path length of a longitudinal displaceability of the latching part in relation to the first assembly rail is preselectable. Furthermore, the position of the retaining element in relation to the second assembly rail is preselectable.