Clad material for lead wire connection

An electroacoustic transducer 1 includes a base 24 made of a magnetic material, a magnetic core 22 made of a magnetic material and erected on the base 24 , and a diaphragm 20 made of a magnetic material and supported with a space distanced from the top end of the magnetic core 22 . The base 24 , the magnetic core 22 and the diaphragm 20 form a magnetic circuit. The electroacoustic transducer 1 includes a magnet 25 supplying a static magnetic field, and a coil 23 supplying an oscillation magnetic field to the magnetic circuit. A lead wire 23 a ( 23 b ) of the coil 23 and a connection land 50 a ( 50 b ) are electrically connected by resistance welding or thermal welding with the lead wire 23 a ( 23 b ) held between the connection land 50 a ( 50 b ) and a cover member 52 a ( 52 b ).