| 摘要 |
The invention concerns small high-fidelity, stereo, mobile acoustic enclosures of high quality (table mounted) which allow high listening power with low amplification. The person seated in front will adjust the sound for each of his ears and the listening power simply by moving closer. The invention comprises a mobile table 1 having, in the corners, four legs fitted with pivoting castors 4, two supports 5 whose collars are each held against the table 1 by a 5mm round-headed screw. It will be possible to move them away from each other by rotating them. On these supports 5 are mounted the enclosures 2 which will be directed or raised as required, the rings 6 stopping them in height. The enclosures made of extended polystyrene 2 are externally covered with drawing paper. The membranes 11 of the electrodynamic loud-speakers, having a certain elongation, will have a cone made of Canson paper glued to the large diameter, the membrane 11 and the cone 10 will be made flexible, the centre will be varnished and about ten varnished bands will be made from the centre to the outside of the cone. The mobile stereo table 1 may be of interest because high listening power will be available without interference and with incomparable fidelity and stereo. The sound can be adjusted for each ear by means of a slight displacement. The ambient sound is stereo. <IMAGE>
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