Abstract: Described is a loudspeaker enclosure arrangement that reduces, by a large degree, internal acoustic reflections, enclosure vibrations, and diffraction off the surfaces and edges of the loudspeaker enclosure. The loudspeaker exterior surfaces and edges are covered with acoustic damping foam. The enclosure is shaped to dissipate sound waves within the enclosure, rather than allowing the sound waves to reflect off its walls. To achieve the objects set forth above, the design comprises a loudspeaker in which the exterior of the side walls are prevented from communicating interfering sound by the placement of exterior sound-damping foam blocks. The design also comprises a loudspeaker enclosure that has a triangular horizontal cross section. Internal sound waves diminish toward the distal point of the enclosure and are not reflected forwardly.

Abstract: A self-contained finish spraying apparatus that allows a user to transport the apparatus to a job site and provides the tools to conduct finish spraying regardless of the lack of necessary components at the job site, such as water and electricity, is claimed and described herein. The apparatus includes a generator, a water tank, a dry material silo, a mixer, an air compressor, and a conventional viscous sprayer. The apparatus includes all or most of these materials within security walls so that the apparatus may be left at an exterior location at a job site without risk of damage to the machinery by vandalism or theft.