The double loudspeaker, each is 8 brass manual copper weldings, each outer annulus diameter is 42CM, after the loudspeaker, the tube is the camber which 8 pieces combine, inserts in the foundation both sides nature, but outside the curving rectangular wooden cabinet, the configuration has the concave-convex modelling bottom request, high and low unites, full of vitality.  Size: 38X42X73CM