This invention refers to a loudspeaker box arrangement with at least two loudspeaker boxes, each comprising at least a mid-range loudspeaker device and a high-range loudspeaker unit arranged at a distance therefrom; with a mechanical connecting device for mechanically connecting the loudspeaker boxes; with an electrical connecting device for the electrical supply of the mid-range loudspeaker device and high-range loudspeaker unit, wherein the mechanical connecting device comprises a pair of spaced-apart guide grooves on a top surface of a loudspeaker box and a compatible pair of guide bases on a mating surface of a neighboring loudspeaker box, which in the mounted state engage each other, and that the electrical connecting device comprises a first pair of electrical contacts in the guide grooves, or the guide grooves are designed as contacts, which are contacted in the mounted state of the mechanical connecting device. Furthermore, the invention refers to a loudspeaker box.