Loudspeaker technology

thumb|12-inch (30 cm) subwoofer Speaker driver|driver (loudspeaker). A driver is commonly installed in an enclosure (often a wooden cabinet) to prevent the sound waves coming off the back of the driver diaphragm from canceling out the sound waves being generated from the front of the subwoofer. thumb|A typical Hi-Fi subwoofer (r.), with the subwoofer loudspeaker built into a cabinet. On the left, a version with transparent cabinet is shown where the large magnet (grayish color) of the speaker driver can be seen in the middle, close to the brown Electrodynamic speaker driver#Components|dam

type of magnet

method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first

acoustical component; empty box intended for one or several loudspeakers; does not include the loudspeakers themselves

type of electronic filter circuitry for audio applications, especially for loudspeaker boxes; thereby mostly analog, very seldom digital

permanent magnets made from alloys of rare earth elements

type of loudspeaker enclosure with improved bass performance

loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency, used either for HiFi purposes or for distributing spoken information to larger audiences in public

loudspeaker system composed of linearly-mounted, in-phase speakers

specialized loudspeaker that reproduces a portion of the audible frequency range

HiFi loudspeaker box that has at least one, typically two or more, built-in amplifiers

thumb|Sensurround speaker diagram, with the extra speakers shown in white (Center, Surround Left and Surround Right) thumb|Sensurround logo (designed for the release of the film Earthquake). Sensurround is the brand name for a process created by MCA and developed by Cerwin-Vega in conjunction with Universal Studios to enhance the audio experience during film screenings, specifically for the 1974 film Earthquake. The process was intended for subsequent use and was adopted for four more films, Midway (1976), Rollercoaster (1977), the theatrical version of Saga of a Star World (1978), the Battles

method of loudspeaker cabinet design