[Problem] To achieve compatibility between push-type and screw-type terminals of mounted printed circuit substrates. [Solution] A speaker terminal attachment base (1) allows both push- and screw-type connectors (2, 3) to be attached thereto. A connector anchoring boss part (111), whereby a terminal part (121) with a through hole (1211) is anchored, is formed upon an attachment base (1), and a through hole (1112), which connects to the through hole (1211) of the terminal part (121), is formed upon the connector anchoring boss part (111). The through hole (1112) comprises a large diameter part (11121), and a small diameter part (11122). When the screw-type connector (3) is attached, a nut (5) which sends a male screw part (312) of the connector (3) in the axial direction is non-rotatably housed in the large diameter part (11121) before a terminal plate (12) is attached. When the push-type connector (2) is attached, a flat face (11123) which is formed in the inner circumference of the small diameter part (11122) makes planar contact with a flat face (2115) of the connector (2), preventing the rotation of the connector (2).