A speaker device comprising: a frame including a frame bottom portion, bridging portions that are radially provided so as to open to expand relative to each other at a tip end side, and a substantially circular opening formed at a central portion of a bottom surface; a substantially truncated cone-shaped diaphragm opening to expand towards the tip end side of the frame, an outer circumferential edge of the diaphragm being attached to the frame, wherein the diaphragm has a substantially circular opening formed at a central portion; a substantially cylindrical voice coil bobbin whose one end side in an axial direction is attached to the diaphragm; a voice coil that is wound around an outer circumferential surface of the voice coil bobbin; a ring-shaped plate that has a substantially circular opening formed at a central portion, and is attached to a peripheral edge of the opening of the frame; a substantially discoid yoke comprising a yoke bottom portion; a substantially cylindrical center pole projecting from a substantially central portion of the yoke bottom portion in the direction of the tip end side of the frame; a magnet that is sandwiched by the plate and the yoke bottom portion, has a substantially circular opening which is formed at a central portion and through which the center pole is inserted, and has magnetic pole faces on both end faces in an axial direction; and an insulation coated conductor wire having one end and the other end electrically connected to each other; characterized in that the insulation coated conductor wire is wound around at least each of an outer circumferential surface of the yoke and an outer circumferential surface of the magnet, a frame including a frame bottom portion, bridging portions that are radially provided so as to open to expand relative to each other at a tip end side, and a substantially circular opening formed at a central portion of a bottom surface; a substantially truncated cone-shaped diaphragm opening to expand towards the tip end side of the frame, an outer circumferential edge of the diaphragm being attached to the frame, wherein the diaphragm has a substantially circular opening formed at a central portion; a substantially cylindrical voice coil bobbin whose one end side in an axial direction is attached to the diaphragm; a voice coil that is wound around an outer circumferential surface of the voice coil bobbin; a ring-shaped plate that has a substantially circular opening formed at a central portion, and is attached to a peripheral edge of the opening of the frame; a substantially discoid yoke comprising a yoke bottom portion; a substantially cylindrical center pole projecting from a substantially central portion of the yoke bottom portion in the direction of the tip end side of the frame; a magnet that is sandwiched by the plate and the yoke bottom portion, has a substantially circular opening which is formed at a central portion and through which the center pole is inserted, and has magnetic pole faces on both end faces in an axial direction; and an insulation coated conductor wire having one end and the other end electrically connected to each other; characterized in that the insulation coated conductor wire is wound around at least each of an outer circumferential surface of the yoke and an outer circumferential surface of the magnet,