There is provided a dynamic electroacoustic transducer comprising a diaphragm and an oscillator coil which is fixed to the diaphragm in an oscillator coil portion. The diaphragm has a first portion within the oscillator coil portion and a second portion between the oscillator coil portion and an edge of the diaphragm. The diaphragm has at least one stiffening portion in the region of the second portion, which is of a different stiffness from the second portion of the diaphragm. The stiffening portion is of a such a configuration that a wobble movement of the diaphragm is substantially compensated.