DIRECTED MULTICHANNEL LOUDSPEAKER WITH WAVEGUIDE Russian patent published in 2020 - IPC H04R1/28 

FIELD: physics.

SUBSTANCE: present invention relates to loudspeaker comprising housing having front part, side parts and rear part, limiting inner volume, wherein front part is made in form of waveguide surface, includes at least one dynamic head in middle of waveguide surface and capable to emit main acoustic power of loudspeaker into environment towards first acoustic axis, and an additional dynamic head attached to the body. In accordance with the invention, the additional dynamic head is fixed inside the housing so that a sub volume is formed in the inner volume, wherein the subset is limited by the dynamic head, the dividers between the dynamic head and the front part, as well as the housing front part, wherein at least one port is configured to open in the direction from sub-abstraction to the environment, or to the side part, or to the rear part of the housing, and at least one resonator which is acoustically connected to the sub-display, wherein the resonator is tuned to at least one of the undesired resonances of the sub-volume.

EFFECT: proposed invention eliminates problems associated with resonance caused by woofer sub-volume.

27 cl, 14 dwg