Abstract: An audio speaker system includes a pair of satellite speakers each having a copper lined pyramidal enclosure formed by four side walls diverging outwardly upwardly from a downwardly facing apex. A speaker mounting support at an upper end of each of the satellite speaker enclosures has a horizontal upper surface through which an upwardly facing speaker is mounted. A plurality of upwardly and inwardly inclined walls connect an upper end of each of the triangular side walls of the satellite speaker enclosures with the horizontal upper surface. A pyramidal speaker grill having four triangular side walls tapering to an upper apex covers the horizontal upper surface and is supported by the inclined walls. A sub-woofer speaker includes a pyramidal enclosure lined with a thin sheeting of copper and has four triangular side walls tapering to an upwardly facing apex.

Abstract: A cover flap is permanently, hingedly attached along one edge to the inner portion of an accessory side panel, the latter carrying a needlepoint foundation canvas. The flap is dimensioned to cover the inner surface of the canvas and there is means for removably securing the free portion of the flap in canvas-covering position. In one embodiment, the side panel is laminated, and the cover flap is formed by a portion of the inner side panel lamination, which portion is outlined by a U-cut.