A speaker device includes a magnetic circuit system and a vibration system
including a frame. The frame has a magnetic circuit housing unit housing
the magnetic circuit, an outer peripheral portion arranged on an outer
side thereof and having an annular shape, and plural arm parts connecting
the magnetic circuit housing unit and the outer peripheral portion. A
damper mounting part on which an outer peripheral portion of a damper is
mounted is formed at the outer peripheral portion of the magnetic circuit
housing unit. A rib upwardly standing is provided at the outer peripheral
portion of an upper surface of the damper mounting part. The height of
the vicinity of the connecting part between the rib and the arm part is
set larger than the height of the rib corresponding to an area other than
the vicinity, and thus the height of the rib is partly different. By
reflecting this, the part of the rib corresponding to the connecting part
between the rib and the arm part is formed to have a mountain shape when
observed from the side. The height of the rib corresponding to the
connecting part between the rib and the arm part is set to the height
capable of withstanding the stress operating on the connecting part
between the rib and the arm part at the time of the driving of the
speaker device, and the height capable of regulating the position of the
damper when the damper is mounted on the damper mounting part.