To make the appearance of this system excellent, and to easily attain the assembly by connecting two or more speaker systems through a grill, transmitting a musical signal by a conductive material provided at the grill, and using materials constituting the grill or wires inserted into the non-conductive grill frame for the conductive material.

Speaker systems 1 and 1X are connected by interfitting a grill 2. That is, grill bosses 2a of the grill 2 are interfit into grill holders 1a provided at the speaker systems 1 and 1x. Each speaker unit 3 constituting the speaker systems 1 and 1x is connected through an inside wiring material 1c with a terminal board 1b. The terminal board 1b is also connected through an inside wiring material 1c with the grill holder 1a. The grill bosses 2a are connected with each other through a conductive wire 2b inserted into the grill 2. Thus, a musical signal can be transmitted from the speaker system 1 to the speaker system 1x.