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The longer the array, the lower frequency the pattern will control. [7] At frequencies below 100 Hz (wavelength of 11.3 feet (3.4 m)) the line array which is less than approximately 3 meter long will start to become omnidirectional, so the system will not conform to line array theory across all frequencies. [12]
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 ...
Later Polk speaker models used arrays of drivers—Stereo Dimensional Array (SDA)—to cancel the crosstalk from the left speaker to the right ear and from the right speaker to the left ear, so as to expand the stereo image beyond the space between two stereo speakers. The SDA effect is used in some current Polk speakers.
Dynaco was an American hi-fi audio system manufacturer popular in the 1960s and 1970s for its wide range of affordable, yet high quality audio components. [1] Founded by David Hafler and Ed Laurent in Philadelphia, Pennsylvania in 1955, it's best known product was the ST-70 tube stereo amplifier. They also manufactured other tube and solid ...
TOA Corporation (TOA株式会社, Tī Ō Ē Kabushiki-gaisha) is a Japanese electronics company, specializing in public address systems, intercom systems, microphones, array speakers and megaphones. [3]
A large line array with separate subs and a smaller side fill line array. A simple and inexpensive PA loudspeaker may have a single full-range loudspeaker driver , housed in a suitable enclosure. More elaborate, professional-caliber sound reinforcement loudspeakers may incorporate separate drivers to produce low, middle, and high frequency sounds.