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From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
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An active full-range loudspeaker. Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers.Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at ...
Subwoofer: 5.25" Dual voice coil active woofer, 6" wOOx passive radiator; Left/Right Speakers: 3" full range, magnetically shielded; Power supply (subwoofer only): AC 110-220 V, 50–60 Hz, 310 mA @ 220 V; Electronic crossover frequency (subwoofer to a speaker): 160 Hz; Electronic crossover filter slopes: Subwoofer: -18 dB/octave at 160 Hz
PMC speakers: United Kingdom Polk Audio: United States ProAc: United Kingdom PSB Speakers: Canada QSC Audio Products: United States Quad Electroacoustics: United Kingdom (brand) Radio Shack: United States RCF audio: Italy Rectilinear Research Corporation: United States Rega Research: United Kingdom Renkus-Heinz: United States ReVox: Switzerland ...
The most famous speakers were the Symbol B (1983) as well as the first Revox active speaker Agora B (1986). A milestone in the speaker development was the two digital active speakers Scala 4.7 (1994) and Scala 3.6 (1996). 1980 also saw the introduction of the Triton, one of the first sub-woofer / satellite systems for home high fidelity.
A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to a few hundred Hz. The name is from the onomatopoeic English word for a dog's deep bark, "woof" [1] (in contrast to a tweeter, the name used for loudspeakers designed to reproduce high-frequency sounds, deriving from the shrill calls of birds, "tweets").
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