Abstract: The present disclosure provides a speaker, comprising a basin frame with a receiving space, a vibration system disposed at the basin frame, and a magnetic circuit system configured for driving the vibration system to generate sounds by vibration, the vibration system comprises a diaphragm with an outer edge fixedly held by the basin frame and a voice coil configured for driving the diaphragm to vibrate, the voice coil includes a first voice and a second voice coil fixedly connected to the first voice coil, the first and second voice coils are disposed in parallel and symmetrically, the first and second voice coils are integrally wound molded and the winding direction of the first voice coil is opposite to that of the second voice coil. The speaker provided by the present disclosure could improve utilization of magnetic field, provide better vibration effect and reduce resonance frequency.

Abstract: An electroacoustic vibrating transducer is disclosed. The electroacoustic vibrating transducer includes a frame defines a hollow space, a yoke positioned in the hollow space, and a elastic member mounted on the frame. The elastic member includes a circular plane lamina and a plurality of elastic arms extending outwardly from the circumference of the circular plane lamina. The yoke includes a bottom wall and a sidewall extending vertically from the bottom wall, and the sidewall defines a plurality of gaps corresponding to the elastic arms. Each of the elastic arms is intermittently received in the gaps during the vibration of the elastic member.

Abstract: An acoustic loudspeaker cabinet enclosure has a woofer and a tweeter mounted on a front wall and a tuned port with a duct extending into the interior of the cabinet. A pair of tuned baffles are mounted within the cabinet, one of the baffles being secured to the rear wall within the peripheral envelope of the woofer and the other of the baffles being secured to the front wall approximately half way between the position of the duct and the woofer. The baffles have a plurality of reed fingers which are excited at predetermined frequencies to resonant thereby resulting in a controlled resonance developed by the air within the cabinet to provide a bass response more transient than that of conventional speaker systems, and a smoother, deeper, more natural response. The tuned baffles within the cabinet act to provide an internal tuning port within the cabinet similar to the conventional external tuning port. In the preferred embodiment the port and duct are positioned in the rear wall.