Patent ID: 7266211
Filing Date: 2007-09-04
Classification: H04R

Abstract:
1. A speaker arrangement comprising: a speaker including a speaker diaphragm, and a speaker frame arrangement fixed to said speaker diaphragm about an outer periphery thereof so that said speaker diaphragm spans across an opening in said speaker frame arrangement, a fixing portion of said diaphragm being defined by a boundary at which said diaphragm meets a periphery of said opening of said frame arrangement; a speaker grille supported by said speaker frame arrangement, said speaker grille having a sound opening therein; wherein said speaker diaphragm includes a diaphragm center and a diaphragm edge portion and is fixed to said speaker frame arrangement in such a manner as to define a diaphragm vibration plane having a shape that is one of circular and oval; wherein said speaker grille includes a blocking portion including a center blocking portion arranged so as to oppose said diaphragm center of said diaphragm, and a peripheral blocking portion constituting an outer periphery of said speaker grille and surrounding at least said sound opening; wherein said sound opening includes an opening portion that is disposed so as to oppose a region of said diaphragm between said fixing portion and said diaphragm edge portion thereof; and wherein an effective open area provided by said sound opening of said speaker grille is at least 31% and less than 60% of an area of said diaphragm.