| 摘要 |
A loudspeaker including a loudspeaker cabinet with at least one loudspeaker element (2) provided with a loudspeaker membrane means (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 means and to the surroundings of the cabinet. One opening (6) of the apertures communicates with other ones (28) of the apertures via sound passages, the sectional area of which varies from the first-mentioned opening to the other apertures, at least two of the sound passages having mutually different length. Preferably the sectional area essentially increases from the first-mentioned opening towards the other apertures, where it is finally decreased again. |
