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Henry Mancini and Benny Goodman, good friends of Rudy Bozak, owned Concert Grand speaker systems. Jack Webb put a pair in his Mark VII Productions listening room. In 1961, Bozak introduced the B-4000 Symphony. This was sort of "half a Concert Grand," using two 12" woofers, one midrange and the same vertical array of eight tweeters as the ...
American Signal Corporation (ASC) is an outdoor warning siren and mass notification company in the United States. ASC was founded in 1873 as Biersach and Niedermeyer (B&N) . After performing poorly, the company reformed as Alerting Communicators of America (ACA) in 1968, and expanded the line of warning systems they produced.
The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.
A shower speaker attached to the wall of a shower with a suction cup. A shower speaker is a Bluetooth speaker designed for use in humid environments such as showers or more generally in the bathroom. There are also shower speakers using Wi-Fi, although this is more rare. The speaker must first be paired with a Bluetooth device.
A piezoelectric speaker (also known as a piezo bender due to its mode of operation, and sometimes colloquially called a "piezo", buzzer, crystal loudspeaker or beep speaker) is a loudspeaker that uses the piezoelectric effect for generating sound. The initial mechanical motion is created by applying a voltage to a piezoelectric material, and ...
Problems radiating low frequencies. Increase in size makes it possible to radiate sound with lower frequencies. [4] Low directivity and slow fading may lessen stereophonic sound impression. Still, listening from an off-center position gives some imaging of phantom sources as the other speaker can be heard with its full spectrum, but with extra ...
A four channel quadraphonic diagram showing the usual placement of speakers around the listener. Quadraphonic (or quadrophonic, also called quadrasonic or by the neologism quadio [1] [formed by analogy with "stereo"]) sound – equivalent to what is now called 4.0 surround sound – uses four audio channels in which speakers are positioned at the four corners of a listening space.
Late version Quad "ESL-57" loudspeaker with black grilles and rosewood end caps. The Quad Electrostatic Loudspeaker (ESL) is the world's first production full-range electrostatic loudspeaker, launched in 1957 by Quad Electroacoustics, then known as the Acoustical Manufacturing Co. Ltd. [1] The speaker is shaped somewhat like a home electric radiator curved slightly on the vertical axis.