Synchronous common polar resonant wall type speaker cabinet

A synchronous common polar resonant wall type speaker cabinet comprising

• a cabinet composed of a plurality of resonance wall boards including a front board and at least a resonance means, forming a main resonance cavity inside the cabinet;
• and
• a front board and at least a speaker installed on the front board;
• wherein each resonance means is composed of a rigid conductive hood, an annular air pressure compensation chamber surrounded by the rigid conductive hood and the resonance wall boards, at least a passage hole to connect the main resonance cavity to the annular air pressure compensation chamber, an enclosed compensation resonance cavity isolated from the main resonance cavity and the annular air pressure compensation chamber, a resonance plate having an outer edge between the air pressure compensation chamber and the compensation resonance chamber, a first soft expansion gasket located between the resonance plate and the rigid conductive hood, and a second soft expansion gasket between the resonance plate and the wall board and maintained an appropriate distance from the first soft expansion gasket;
• whereby a compensation air flow between the air pressure compensation chamber and the main resonance cavity can provide a kinetic energy to drive the resonance means for a synchronous and common polar oscillation synchronous with the speaker.