| abstract |
A loudspeaker. The loudspeaker diaphragm comprises a vibration system and a magnetic circuit system matched with the vibration system; the vibration system includes a loudspeaker diaphragm; the loudspeaker diaphragm comprises two surface layers compounded together and at least one intermediate layer positioned between the two surface layers, and at least one surface layer is a thermoplastic polyester elastomer membrane layer (11), at least one intermediate layer is an adhesive layer (12); and the Young modulus of the loudspeaker diaphragm is 5-700 MPa, the amplitude of the loudspeaker diaphragm when vibrating is 0.25mm-1mm and the F 0 of the loudspeaker is 150-1500 Hz. The loudspeaker has good sounding effect. |