Loudspeaker enclosures for mounting in an aperture in a cavity wall

A loudspeaker enclosure for mounting in an aperture in a cavity wall having a wall cavity, with a part of the enclosure being located within the wall cavity adjacent the aperture, wherein the enclosure has an effective internal volume, and the enclosure comprises:

• a main enclosure unit for mounting in said aperture and housing one or more loudspeaker drive units, and
• a supplementary enclosure unit for location within the wall cavity and being acoustically connected in use to the main unit to increase the effective internal volume of the enclosure beyond that of the main unit, and wherein:
• a hinge connection connecting the supplementary unit to the main unit and operative to enable the main unit to be angled relative to the supplementary unit while the supplementary unit is being inserted through said aperture and into said wall cavity, and operative to enable said main unit to be aligned with and acoustically coupled to said supplementary unit when said main unit is positioned in said wall aperture, and wherein
• said supplementary unit is shallower than said main unit, and said articulated connection is located at the front of said supplementary unit but is spaced from the front of said main unit by a spacing such as to cause the backs of the units to be in alignment in use, the terms “front” and “back” referring to the installed orientation of the units.

A loudspeaker enclosure for mounting in an aperture in a cavity wall having a wall cavity, with a part of the enclosure being located within the wall cavity adjacent said aperture, wherein the enclosure has an effective internal volume, and the enclosure comprises:

• a main enclosure unit for mounting in said aperture and adapted to house one or more loudspeaker drive units,
• a supplementary enclosure unit for location within said wall cavity and adapted to be acoustically connected to said main unit to increase the effective internal volume of said enclosure beyond that of said main unit, and wherein:
• an articulated connection connecting said supplementary unit to said main unit and operative to enable said main unit to be angled relative to said supplementary unit while the supplementary unit is being inserted through the aperture and into the wall cavity, and operative to enable said main unit to be aligned with and acoustically coupled to said supplementary unit when said main unit is positioned in said wall aperture, and wherein
• one longitudinal end of said supplementary unit and each longitudinal end of said main unit all include respective apertures for acoustic communication with the other unit, and a blanking plate is provided for closing a selected one of said respective apertures of said main unit.