| Loudspeaker Cabinets |
Article Index for Loudspeaker |
Website Links For Cabinets |
Information AboutLoudspeaker Cabinets |
|
Loudspeaker Cabinets have a function. The loudspeakers in a cabinet broadcast soundwaves in 180 degrees out of phase from the front where one listens. Mixing the out of phase soundwaves into the listening environment causes innacurate problems, including lower program volumes. Before the 1950's manufacturers did not fully enclosure their loudspeaker cabinets. The back of the cabinet was typically left wide-open. Most loudspeaker cabinets currently are box-shaped. Manufacturers understand that research from the 1930's my Dr. Harry Olsen showed experiments that curved loudspeaker cabinets have major benefits by eliminating most soundwave diffraction. However, the problem with curving the shape of a loudspeaker cabinet is that is it difficult to curve heavy wood. Ideal loudspeaker cabinets usse heavy walls to contain the out of phase sound energy, and the walls are usually made of wood. In the 1990's, US Enclosure Company (Ultimate Loudspeaker Enclosure Company) pioneered a method of molding loudspeaker walls into any curved shape using wall materials that were equal to wood loudspeaker walls. Loudspeaker cabinets sometimes are "sealed" or sometimes "ported" Ported cabinets allow some of the sound energy inside the cabinet to be released generally to increase bass response. Many other engineering designs exist including transmission lines. Although loudspeaker cabinets may at times appear bulky in an environment, they serve a necessary purpose-- containing out of phase soundwaves from the listening area. |
|
|