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Hugh Davies

A transducer which converts variations of electrical current into sound vibrations. The principle of the loudspeaker is the exact reverse of that of the microphone. It is driven by an amplifier (which may be housed in a separate cabinet or combined with the loudspeaker in a single ‘combination unit’), and is the exact reverse of the microphone. The loudspeaker is an essential component of every electro-musical system. A loudspeaker cabinet for professional or domestic use normally contains at least a substantial mid-range unit and a ‘tweeter’ for higher frequencies; a larger cabinet or a separate bass loudspeaker will also incorporate a low-frequency ‘woofer’. A loudspeaker installation for a large space, temporary or permanent, is normally known as a PA (‘public address’) system....

Article

Music studio and composer’s collective. It was established in San Francisco in 1961 by Ramon Sender and Pauline Oliveros, and was soon joined by Morton Subotnick. Its first location was on Jones Street, but after the building accidentally burned down, the center relocated to a large building on Divisadero Street. It was not only the first electronic music studio on the West Coast but also became a hub of artistic activities and technological research. In addition to offering light shows designed by Anthony Martin, it hosted many composers, poets and artists, and programmed various concerts: the Sonics series, regular programming featuring avant-garde music from the Americas, Asia, and Europe, the three Tudorfest festivals, and other events. This is where in ...