| CPC H04R 1/288 (2013.01) [C08J 9/0066 (2013.01); H04R 1/025 (2013.01); H04R 1/2803 (2013.01); H04R 1/2807 (2013.01); H04R 1/2819 (2013.01); H04R 1/2888 (2013.01); H04R 2499/11 (2013.01)] | 3 Claims |
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1. A method of manufacturing a loudspeaker, comprising steps of:
providing a plurality of particles;
producing at least one porous monolithic block utilizing the plurality of particles; and
mounting the porous monolithic block into an enclosure,
wherein producing at least one porous monolithic block utilizing the plurality of particles comprises: providing two different kinds of binders and a mold whose contour corresponds to the contour of the enclosure; mixing the binder and the plurality of particles and filling this mixture into the mold; reducing the ambient pressure around the mold filled with the mixture of the plurality of particles and the binder in order to produce the at least one porous monolithic block; and removing the mold from the at least one porous monolithic block, or wherein producing at least one porous monolithic block utilizing the plurality of particles comprises: providing a binder and a mold whose contour corresponds to the contour of the enclosure; mixing the binder and the plurality of particles and filling this mixture into the mold; heating the mold filled with the mixture of the plurality of particles and the binder, wherein one type of binder in the two different kinds of binders burns, and another type of binder in the two different kinds of binders does not burn, in order to produce the at least one porous monolithic block; and
removing the mold from the at least one porous monolithic block.
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