| 摘要 |
The loudspeaker includes a cabinet with at least one loudspeaker element (2) provided with a loudspeaker membrane (4), and with a sound passage arrangement (20), that in connection with a wall of the cabinet defines a cavity, which via apertures is acoustically coupled to the membrane and to the surroundings of the cabinet. - One opening (6) of the apertures communicates with the other apertures via sound passages, the sectional area of which varies from the first-mentioned opening to the other aperturs, at least two of the sound passages having mutually different length. Preferably the sectional area increases from the first-mentioned opening towards the other apertures, where it is finally decreased again.(1/12) |
