A sound reproduction system, comprising: - a supporting structure, including a distribution circuit; - a loudspeaker box, removably connected mechanically to the supporting structure, wherein the loudspeaker box extends along a longitudinal axis between a first end and a second end and includes: a cabinet; a sound transducer, associated with the cabinet and positioned at the first end of the loudspeaker box; a connection circuit, which is positioned at the second end of the loudspeaker box and is operatively connected electrically to the distribution circuit of the supporting structure and is configured to receive a signal from the distribution circuit and to transmit it to the sound transducer, wherein the connection circuit of the loudspeaker box is connectable to the distribution circuit of the supporting structure at a plurality of angular positions, rotated relative to each other about the longitudinal axis: - a plurality of deformable electrical connectors, wherein the connection circuit of the loudspeaker box is electrically connected to the distribution circuit of the supporting structure through the deformable electrical connectors, wherein at least one of the distribution circuit of the supporting structure and the connection circuit of the loudspeaker box includes a first conductive track and a second conductive track, which extend perpendicularly to the longitudinal axis and are distributed along respective concentric annular paths around the longitudinal axis; - a mechanical connector, the loudspeaker box being mechanically connected to the supporting structure removably through the mechanical connector, wherein the mechanical connector is threaded and is aligned with the longitudinal axis, further wherein the mechanical connector is a stud bolt fastened to the supporting structure or to the loudspeaker box, whereby the mechanical connector is positioned internally of the first conductive track and second conductive track. - a supporting structure, including a distribution circuit; - a loudspeaker box, removably connected mechanically to the supporting structure, wherein the loudspeaker box extends along a longitudinal axis between a first end and a second end and includes: a cabinet; a sound transducer, associated with the cabinet and positioned at the first end of the loudspeaker box; a connection circuit, which is positioned at the second end of the loudspeaker box and is operatively connected electrically to the distribution circuit of the supporting structure and is configured to receive a signal from the distribution circuit and to transmit it to the sound transducer, wherein the connection circuit of the loudspeaker box is connectable to the distribution circuit of the supporting structure at a plurality of angular positions, rotated relative to each other about the longitudinal axis: a cabinet; a sound transducer, associated with the cabinet and positioned at the first end of the loudspeaker box; a connection circuit, which is positioned at the second end of the loudspeaker box and is operatively connected electrically to the distribution circuit of the supporting structure and is configured to receive a signal from the distribution circuit and to transmit it to the sound transducer, wherein the connection circuit of the loudspeaker box is connectable to the distribution circuit of the supporting structure at a plurality of angular positions, rotated relative to each other about the longitudinal axis: - a plurality of deformable electrical connectors, wherein the connection circuit of the loudspeaker box is electrically connected to the distribution circuit of the supporting structure through the deformable electrical connectors, wherein at least one of the distribution circuit of the supporting structure and the connection circuit of the loudspeaker box includes a first conductive track and a second conductive track, which extend perpendicularly to the longitudinal axis and are distributed along respective concentric annular paths around the longitudinal axis; - a mechanical connector, the loudspeaker box being mechanically connected to the supporting structure removably through the mechanical connector, wherein the mechanical connector is threaded and is aligned with the longitudinal axis, further wherein the mechanical connector is a stud bolt fastened to the supporting structure or to the loudspeaker box, whereby the mechanical connector is positioned internally of the first conductive track and second conductive track.