ACOUSTIC SYSTEM Russian patent published in 1994 - IPC

FIELD: electroacoustic equipment. SUBSTANCE: acoustic system has chamber which case is provided with hole mounting head of loudspeaker and with sound-radiating hole connected to environment. It also includes acoustic channel matching by radiation phase rear and front sides of diaphragm of head of loudspeaker. Case has additional hole matched with output hole of acoustic channel. Case can be manufactured in the form of sealed hollow parallelepiped with longitudinal partition installed inside it dividing its space into chamber and acoustic channel. Case can be fabricated in the form of tube closed on butts inside which second tube is put with clearance. System can fitted with third tube arranged uniaxially to second one with sealing gasket put between them and made fast to first tube. Second tube is equipment with means for axial movement with reference to third tube. EFFECT: improved quality of reproduction of low frequencies of sound range. 9 dwg