Abstract: Provided is a speaker that allows compactization while achieving improvement in assembly readiness. The speaker includes a diaphragm having a vibration face portion vibrated to radiate a sound wave, a voice coil fixed to a back face of the vibration face portion, a frame supporting the diaphragm, a magnetic circuit vibrating the diaphragm and a mass adjustment member opposed to a surface of the diaphragm and configured to adjust the mass of the vibration face portion. The mass adjustment member includes a plate face portion fixed to the surface of the vibration face portion and a damper extending outwards from the plate face portion.

Abstract: A speaker includes a frame, a diaphragm supported by the frame, a rectangular tube-shaped coil that is wound into a rectangular shape and vibrates the diaphragm, and a pair of support dampers that support the coil and dampen vibrations of the coil. The pair of support dampers are arranged opposing each other across the coil. The support dampers each have a base portion that is supported by the frame and a support portion that supports the coil. The support portion has a first support portion that extends along and supports a surface of one side of the rectangular shape of the coil and a pair of second support portions that extend along and support surfaces of two sides respectively of the coil that are adjacent to the one side. The pair of second support portions extend from respective end portions of the first support portion.