CONNECTION DEVICE FOR ACOUSTIC INSTRUMENT

PROBLEM TO BE SOLVED: To provide a connection device for acoustic instruments which can easily connect a plurality of the acoustic instruments to one speaker by a simple structure. SOLUTION: The connection device has a first winding 1 which is connected to a first acoustic instrument 6a and transmits a drive signal of a speaker 7a, a second winding 2 which is connected to a second acoustic instrument 6b that is different from the first acoustic instrument 6a connected with the first winding 1 and transmits a drive signal of the speaker 7a, a third winding 3 connected to the speaker 7a, and a magnetic circuit 4 which electrically insulates the first, the second and the third windings 1, 2 and 3, is magnetically connected to each of the first, the second and the third windings 1, 2 and 3, and transmits the drive signals of the first and the second windings 1 and 2 to the third winding 3 through electromagnetic induction. The winding ratio of the first and the third windings 1 and 3, and the winding ratio of the second and the third windings 2 and 3 are set to 1. COPYRIGHT: (C)2008,JPO&INPIT