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Electro-Voice then adapted their decoders so they also could play SQ records as well as Sansui's QS records. The EV system could also simulate four channel sound from two channel sources. [13] In 1978, Electro-Voice patented its Constant Directivity Horn, which produced an even balance of frequencies across the listening field.
The Electro-Voice RE20 is an American professional cardioid dynamic microphone, commonly used in broadcasting applications since 1968. Designed by Electro-Voice using the company's patented Variable-D technology and a large-diaphragm element, it has been described as an industry standard "iconic" microphone for its natural sound and its wide ...
Stereo-4, also known as EV (from Electro-Voice) or EV-4, was a matrix 4-channel quadraphonic sound system developed in 1970 by Leonard Feldman and Jon Fixler. [1]The system was heavily promoted by RadioShack stores in the United States, and some record companies released LP albums encoded in this format.
David W. Gunness (born November 7, 1960) is an American audio engineer, electrical engineer and inventor.He is known for his work on loudspeaker design, especially high-output professional horn loudspeakers for public address, studio, theater, nightclub, concert and touring uses.
It was a kind of electro-acoustic instrument, an acoustic instrument with additional electronic circuits for sound modification. The Magna Organ was an electric-fan driven free reed organ with the microphone sealed in a soundproof box, instead of the electrostatic pickups used on electrostatic reed organs .
In the 1950s and 1960s, circlotrons were produced by Electro-Voice (eight models, 15 to 100 watts per channel), Finnish Voima and Philips. [2] These inspired other local manufacturers, such as Carad. All these models employed output transformers and beam tetrode or pentode tubes (for increased efficiency).
The SM7 is one of three very popular microphones in radio and television stations, used by DJs and voice-over announcers. The other two are the American Electro-Voice RE20 (1968) and the German Sennheiser MD 421 (1960). The Sennheiser and Electro-Voice models are used widely on the concert stage and in recording studios. [6]
The Tata Indica EV was scheduled to be launched in Norway in 2009 and India in 2010, projected to have a 200 km (120 mi) range on a full charge and a top speed of 105 kilometres per hour (65 mph). [12]