An acrylic resin/mineral loudspeaker cabinet

摘要

A loudspeaker cabinet has at least one curved wall and is of a solid material comprising a blend of acrylic resin and mineral. An example of a suitable mineral is Aluminium TriHydrate (ATH), a naturally occurring mineral obtainable from bauxite. A suitable resin is PolyMethyl MethAcrylate (PMMA). It is preferred that the blend is predominantly mineral, i.e. the resin content is below 50%. A commercially available material satisfying these requirements is available in the form of Corian õ , a material available from E.I. du Pont de Nemours and Co, Le Grand Saconnex, Geneva (CH). The curved wall of the cabinet is preferable a compound curve, i.e. curved in two dimensions. The resin/mineral blend of the invention is easily formed into the complex shapes called for in the design of loudspeaker cabinets. It can be thermoformed, routed, carved, sandblasted (etc) with relative ease and this enable complex shape to be formed.