| 摘要 |
A one-channel two-way speaker is provided to improve a bass reproduction characteristic by vibrating a part with a yoke as a whole by attaching a diaphragm to the yoke. A magnetic circuit part has a magnet plate, a magnet and a yoke stacked in sequence. A high tone reproduction part is located on the top of the magnetic circuit part, and comprises a voice coil(21) accommodated between the magnet and an outer wall of the yoke and a front diaphragm(22) connected to the top of the voice coil. A low tone reproduction part is located below the magnetic circuit part, and is composed of a back diaphragm(31) made of a polyurethane, and the back diaphragm is attached to the bottom of the yoke. An outer circumference of the front diaphragm and an outer circumference of the back diaphragm are attached to a single frame respectively. The two-way speaker generates sound of two tones whose frequency response characteristics of the speaker has a peak point in the low tone part and the high tone part respectively by the operation of the voice coil and the magnetic circuit part. |
