|
Rectilinear Research Corporation
Rectilinear Research Corporation was a manufacturer of loudspeakers. The company was formed around 1966 and its principal was Morris I. Wiener (alt. sp. "Weiner") of Plandome Manor, New York. The first known main office location for the company (1966–68) was a30 Main Street Brooklyn, New York. Some time around 1968, the company moved headquarters, manufacturing assembly, and service center t107 Bruckner Blvd(E 133rd St.) in the Bronx. The company remained at this address until it was shuttered in 1977–8. Arnold Schwartz (Micro-Acoustics, founded in 1966), James Bongiorno (Ampzilla, founded in 1974), Marty Gersten (Ohm Acoustics, founded 1971), Jon Dahlquist (co-founder ith Saul B. Marantz">Marantz.html" ;"title="ith Saul B. Marantz">ith Saul B. Marantzof Dahlquist Phased Array in 1978 ), and Richard Shahinian (later engineer designer with Harman Kardon and founder of Shahinian Acoustics at or around 1975) were at different times and at different stages working with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn
Brooklyn () is a borough of New York City, coextensive with Kings County, in the U.S. state of New York. Kings County is the most populous county in the State of New York, and the second-most densely populated county in the United States, behind New York County (Manhattan). Brooklyn is also New York City's most populous borough,2010 Gazetteer for New York State . Retrieved September 18, 2016. with 2,736,074 residents in 2020. Named after the Dutch village of Breukelen, Brooklyn is located on the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duke Ellington
Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American jazz pianist, composer, and leader of his eponymous jazz orchestra from 1923 through the rest of his life. Born and raised in Washington, D.C., Ellington was based in New York City from the mid-1920s and gained a national profile through his orchestra's appearances at the Cotton Club in Harlem. A master at writing miniatures for the three-minute 78 rpm recording format, Ellington wrote or collaborated on more than one thousand compositions; his extensive body of work is the largest recorded personal jazz legacy, and many of his pieces have become standards. He also recorded songs written by his bandsmen, such as Juan Tizol's " Caravan", which brought a Spanish tinge to big band jazz. At the end of the 1930s, Ellington began a nearly thirty-year collaboration with composer-arranger-pianist Billy Strayhorn, whom he called his writing and arranging companion. With Strayhorn, he composed multipl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philips
Koninklijke Philips N.V. (), commonly shortened to Philips, is a Dutch multinational conglomerate corporation that was founded in Eindhoven in 1891. Since 1997, it has been mostly headquartered in Amsterdam, though the Benelux headquarters is still in Eindhoven. Philips was formerly one of the largest electronics companies in the world, but is currently focused on the area of health technology, having divested its other divisions. The company was founded in 1891 by Gerard Philips and his father Frederik, with their first products being light bulbs. It currently employs around 80,000 people across 100 countries. The company gained its royal honorary title (hence the ''Koninklijke'') in 1998 and dropped the "Electronics" in its name in 2013, due to its refocusing from consumer electronics to healthcare technology. Philips is organized into three main divisions: Personal Health (formerly Philips Consumer Electronics and Philips Domestic Appliances and Personal Care), Connecte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-range Speaker
A mid-range speaker is a loudspeaker driver that reproduces sound in the frequency range from 250 to 2000 Hz. It is also known as a squawker. Mid-range drivers are usually cone types or, less commonly, dome types, or compression horn drivers. The radiating diaphragm of a cone mid-range unit is a truncated cone, with a voice coil attached at the neck, along with the spider portion of the suspension, and with the cone surround at the wide end. Cone mid-range drivers typically resemble small woofers. The most common material used for mid-range cones is paper, occasionally impregnated and/or surface-treated with polymers or resins in order to improve vibrational damping. Other mid-range cone materials include plastics such as polypropylene, Cobex, Bextrene, woven Kevlar, fiberglass, carbon fiber, or light metal alloys based on aluminium, magnesium, titanium, or other alloys. The radiating surface of a dome mid-range is typically a 90-degree section of a sphere, made from cloth, metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Full-range Speaker
A full-range loudspeaker drive unit is defined as a driver which reproduces as much of the audible frequency range as possible, within the limitations imposed by the physical constraints of a specific design. The frequency range of these drivers is maximized through the use of a whizzer cone and other means. Most single driver systems, such as those in radios, or small computer speaker designs, cannot reproduce all of the audible frequencies or the entire audible audio range (i.e., sound within the range of human hearing). Typical designs Typically, a full-range drive unit consists of a single driver element, or ''voice coil'', used to move and control a ''diaphragm''. Often the cone structure includes optimizations to enhance high-frequency performance. For example, a small low-mass horn or whizzer cone can be mounted where the voice coil and diaphragm meet, thereby increasing the output at high frequencies. The shape and materials used in the cone and whizzer are highly op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Telephone Supply
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jensen Electronics
{{Infobox company , name = Jensen Electronics , logo = Jensen Dsgnd To Move 4C 3D.jpg , logo_size = 250px , type = subsidiary , foundation = 1915 , founder = Peter L. Jensen , location = , area_served = United States and Germany , products = Consumer and Industrial Electronics , num_employees = , homepage = https://www.Jensenmobile.com/ , parent = Namsung , owner = Dual Electronics Corporation Jensen is a consumer electronics brand with a history that dates back to 1915 with Peter L. Jensen's invention of the first loudspeaker. Over the years the Jensen family of brands has grown to include Jensen, Advent, Acoustic Research (AR), Phase Linear and NHT Loudspeakers (Now Hear This) in the United States and Magnat and Macaudio in Germany. In 2004, Audiovox Corporation added the Jensen portfolio of brands to their mobile and consumer electronics lines. In 2015, Dual Electronics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woofer
A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 50 Hz up to 1000 Hz. The name is from the onomatopoeic English word for a dog's bark, " woof" (in contrast to the name used for loudspeakers designed to reproduce high-frequency sounds, ''tweeter''). The most common design for a woofer is the electrodynamic driver, which typically uses a stiff paper cone, driven by a voice coil surrounded by a magnetic field. The voice coil is attached by adhesives to the back of the loudspeaker cone. The voice coil and the magnet form a linear electric motor. When current flows through the voice coil, the coil moves in relation to the frame according to Fleming's left hand rule for motors, causing the coil to push or pull on the driver cone in a piston-like way. The resulting motion of the cone creates sound waves, as it moves in and out. At ordinary sound pressure levels (SPL), most humans can hear down to about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Science
''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, including the American Society of Magazine Editors awards for its journalistic excellence in 2003 (for General Excellence), 2004 (for Best Magazine Section), and 2019 (for Single-Topic Issue). With roots beginning in 1872, ''Popular Science'' has been translated into over 30 languages and is distributed to at least 45 countries. Early history ''The Popular Science Monthly'', as the publication was originally called, was founded in May 1872 by Edward L. Youmans to disseminate scientific knowledge to the educated layman. Youmans had previously worked as an editor for the weekly ''Appleton's Journal'' and persuaded them to publish his new journal. Early issues were mostly reprints of English periodicals. The journal became an outlet for writings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quad Electrostatic Loudspeaker
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. The speaker is shaped somewhat like a home electric radiator curved slightly on the vertical axis. They are widely admired for their clarity and precision, but known to be difficult speakers to run and maintain. The original ESL, in production between 1957 and 1985, has been hailed in '' Sound & Vision'' as one of the most important speakers of the 20th century. It was succeeded in 1981 by the ESL-63, which remained in production until 1999. As of 2013, Quad maintains four electrostatic speakers in its range. History Acoustical Manufacturing Company had launched a ribbon-hybrid, horn-loaded "Corner Ribbon Loudspeaker" in 1949, but this was not commercially successful. The electrostatics were designed by Theo Williamson, and the company's founder, Peter Walker, from a princip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Lampoon (magazine)
''National Lampoon'' was an American humor magazine that ran from 1970 to 1998. The magazine started out as a Spin-off (media), spinoff from the ''Harvard Lampoon''. ''National Lampoon'' magazine reached its height of popularity and critical acclaim during the 1970s, when it had a far-reaching effect on American humor and comedy. The magazine spawned National Lampoon's Vacation (film series), films, The National Lampoon Radio Hour, radio, live theater, various sound recordings, and print products including books. Many members of the creative staff from the magazine subsequently went on to contribute creatively to successful media of all types. During the magazine's most successful years, parody of every kind was a mainstay; surrealist content was also central to its appeal. Almost all the issues included long text pieces, shorter written pieces, a section of actual news items (dubbed "True Facts"), cartoons and comic strips. Most issues also included "Foto Funnies" or Photonove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolling Stone
''Rolling Stone'' is an American monthly magazine that focuses on music, politics, and popular culture. It was founded in San Francisco, San Francisco, California, in 1967 by Jann Wenner, and the music critic Ralph J. Gleason. It was first known for its coverage of rock music and political reporting by Hunter S. Thompson. In the 1990s, the magazine broadened and shifted its focus to a younger readership interested in youth-oriented television shows, film actors, and popular music. It has since returned to its traditional mix of content, including music, entertainment, and politics. The first magazine was released in 1967 and featured John Lennon on the cover and was published every two weeks. It is known for provocative photography and its cover photos, featuring musicians, politicians, athletes, and actors. In addition to its print version in the United States, it publishes content through Rollingstone.com and numerous international editions. Penske Media Corporation is the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
