A speaker comprising a horn bracket, a magnet system and a vibration system, wherein, the horn bracket is provided with a through hole configured for positioning the magnet system; the magnet system comprises an inner magnetic ring and an outer magnetic ring sleeved on an exterior of the inner magnetic ring, the inner magnetic ring is coaxial with the outer magnetic ring, a gap is provided between an inner annular surface of the outer magnetic ring and an outer annular surface of the inner magnetic ring, wherein the inner annular surface and the outer annular surface have opposite magnetic polarities, and magnetic flux lines formed in the gap by the outer magnetic ring and the inner magnetic ring are radially disposed; the vibration system comprises a voice diaphragm, a voice coil and a winding, the voice diaphragm and the winding are respectively disposed at two ends of the voice coil, the winding is disposed in the gap, the voice diaphragm is connected to an end of the horn bracket; characterized in that the horn bracket further comprises a damp ring with an opening, the horn bracket is provided on a surface facing away from the voice diaphragm with an annular accommodation groove configured for accommodating the damp ring, and a bottom wall of the annular accommodation groove faces the damp ring and is provided with a plurality of apertures toward the voice diaphragm, and the damp ring covers the plurality of apertures; and the horn bracket further comprises a circuit board connected with the output line of an audio device, the winding is connected with the circuit board to realize the transmission of the audio signal, the annular accommodation groove is provided with two barrier strips protruding from the bottom wall facing the opening of the damp ring, and the circuit board is fixed between the two barrier strips. the horn bracket is provided with a through hole configured for positioning the magnet system; the magnet system comprises an inner magnetic ring and an outer magnetic ring sleeved on an exterior of the inner magnetic ring, the inner magnetic ring is coaxial with the outer magnetic ring, a gap is provided between an inner annular surface of the outer magnetic ring and an outer annular surface of the inner magnetic ring, wherein the inner annular surface and the outer annular surface have opposite magnetic polarities, and magnetic flux lines formed in the gap by the outer magnetic ring and the inner magnetic ring are radially disposed; the vibration system comprises a voice diaphragm, a voice coil and a winding, the voice diaphragm and the winding are respectively disposed at two ends of the voice coil, the winding is disposed in the gap, the voice diaphragm is connected to an end of the horn bracket; characterized in that the horn bracket further comprises a damp ring with an opening, the horn bracket is provided on a surface facing away from the voice diaphragm with an annular accommodation groove configured for accommodating the damp ring, and a bottom wall of the annular accommodation groove faces the damp ring and is provided with a plurality of apertures toward the voice diaphragm, and the damp ring covers the plurality of apertures; and the horn bracket further comprises a circuit board connected with the output line of an audio device, the winding is connected with the circuit board to realize the transmission of the audio signal, the annular accommodation groove is provided with two barrier strips protruding from the bottom wall facing the opening of the damp ring, and the circuit board is fixed between the two barrier strips.