| 摘要 |
The invention relates to instruments of the anti-resonant acoustic enclosure type making it possible to damp the sound pressure of the rear wave of the loudspeaker through better rigidity of the walls and promoting the sound aspect by its shape. It comprises a hub 1 receiving the tie bars 3, the latter being connected to pentagons 5 at their centre by way of silent blocks 4. External screws exert a pressure on these pentagons 7. This assembly forms a regular dodecahedron 10. <IMAGE>
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