Abstract: A folding microphone stand has a stand tube which is pivotally supported in heavy cast base. Locking means are provided for securing the stand tube in an erect or a stored position.

Abstract: A miniaturized cone driven reentrant loudspeaker is provided. A cone spea is positioned within a housing. The housing includes a front wall for radiating sound and a side wall. The cone speaker is directed towards a reflector back plate having a generally spherical surface which protrudes into the cone speaker for directing sound waves towards sidewalls of the housing to define a miniaturized cone driven reentrant loudspeaker.

Abstract: A U-shaped bracket element pivotably attached to an object to be mounted is retained on a fixed base. Prior to clamping the bracket against the base, the U-shaped bracket element is rotated relative to the base about an axis perpendicular to the pivoting axis of the object to be mounted. Vertical and lateral adjustments are made while the fixed base supports the weight of the object.

Abstract: A horn loudspeaker construction wherein an integrated sound chamber and horn assembly is provided by two uniquely configured members that form a highly efficient horn loudspeaker capable of being utilized within a four-inch type electrical box. The horn loudspeaker includes a sound chamber for receiving a magnetic loudspeaker driving assembly and diaphragm. The sound chamber also includes a sound opening having a predetermined acoustic orientation. A first horn stage has a first opening acoustically coupled to the sound opening and is characterized by a flare rate that expands as the first horn stage extends away from the sound opening. The first stage includes an acoustical orientation at the output end that is at least 90.degree. disposed from the acoustical orientation of the sound opening.