LOUDSPEAKER

摘要

The loudspeaker particularly comprises two-aperture radiator (1) containi ng paired in-phase counter-radiating apertures (4) and reproducing middle frequencies. Apertures (4) face each other, and their geometrical axis F is positioned vertically, while the distance between apertures (4) equals to at least the radius of aperture (4) but does not exceed the wavelength of the lowest frequency reproduced by paired apertures (4).