Plane speaker

Nathan, Stuart
July 2004
Engineer (00137758);7/9/2004, Vol. 293 Issue 7655, p10
Reports on the development of a flat-panel speakers which can be built directly into the walls, ceiling or floors. Use of a vibrating coils which cause the whole panel to flex, emitting sound from the whole surface; Enhancement of the sound quality throughout the room; Three-dimensional effect throughout the room; Ability of polyurethanes to be fine-tuned to optimally fit different applications using building blocks of isocyanates and tailor-made polyols.


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