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Altec Lansing
Altec Lansing, Inc. is an American audio electronics company founded in 1927. Their primary products are loudspeakers and associated audio electronics for professional, home, automotive and multimedia applications. Engineers at Western Electric, who later formed Altec Services Company, developed the technology for motion picture sound that was introduced in 1927, with the release of ''The Jazz Singer''. Originally, Altec Services Company serviced the theater sound systems the company founders had helped develop. In 1941, the Altec Services Company purchased the nearly bankrupt Lansing Manufacturing Company and melded the two names, forming the Altec Lansing Corporation, and with the manufacturing capabilities of the former Lansing Manufacturing Company, they quickly expanded into manufacturing horn loudspeakers. In 1958 the Altec Lansing Corporation was purchased by James Ling who made it part of LTV Ling Altec. LTV spun off Altec which it loaded down with debt first. By 1974 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Company
A privately held company (or simply a private company) is a company whose Stock, shares and related rights or obligations are not offered for public subscription or publicly negotiated in their respective listed markets. Instead, the Private equity, company's stock is offered, owned, traded or exchanged privately, also known as "over-the-counter (finance), over-the-counter". Related terms are unlisted organisation, unquoted company and private equity. Private companies are often less well-known than their public company, publicly traded counterparts but still have major importance in the world's economy. For example, in 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for $1.8 trillion in revenues and employed 6.2 million people, according to ''Forbes''. In general, all companies that are not owned by the government are classified as private enterprises. This definition encompasses both publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electro-Voice
Electro-Voice (EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement and commercial and residential audiovisual installations. As a subdivision of Bosch Communications Systems Inc. since 2006, Electro-Voice markets products for use by consumers as well as small or large concert venues, broadcasting, houses of worship, and in retail situations. History On September 1, 1927, Lou Burroughs and Albert R. Kahn began a small business called Radio Engineers, servicing radio receivers in the basement of the Century Tire and Rubber Company in South Bend, Indiana. Because of the Great Depression, according to Kahn, "We found ourselves insolvent to the extent of $5,000" ($ today). They decided to focus their business on audio products. The company designed a PA system for Notre Dame football coach Knute Rockne. Rockne, who had difficulty being heard at football practices du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coaxial Speakers
A coaxial loudspeaker is a loudspeaker system in which the individual driver units radiate sound from the same point or axis. Two general types exist: one is a compact design using two or three speaker drivers, usually in car audio, and the other is a two-way high-power design for professional audio, also known as single-source or dual-concentric loudspeakers. The design is favored for its compactness and behavior as an audio point source. Professional audio Coaxial loudspeakers in professional audio enable sound from two drivers to come from one source. This characteristic allows a wider field of listening to a synchronized summation of speaker drivers than loudspeaker enclosures containing physically separated drivers. As well, the pattern of response is symmetric around the axis of the loudspeaker. Since the 1943 introduction of the Altec Lansing Duplex 601 coaxial driver, recording studio monitors have often been coaxial loudspeaker designs. In 1945 the improved Altec 604 wa ... [...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 up to 200 Hz. The name is from the onomatopoeic English word for a dog's deep bark, " woof" (in contrast to a '' tweeter'', the name used for loudspeakers designed to reproduce high-frequency sounds, deriving from the shrill calls of birds, " tweets"). 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professional
A professional is a member of a profession or any person who work (human activity), works in a specified professional activity. The term also describes the standards of education and training that prepare members of the profession with the particular knowledge and skills necessary to perform their specific role within that profession. In addition, most professionals are subject to strict codes of conduct, enshrining rigorous professional ethics, ethical and moral obligations. Professional standards of practice and ethics for a particular field are typically agreed upon and maintained through widely recognized professional associations, such as the Institute of Electrical and Electronics Engineers, IEEE. Some definitions of "professional" limit this term to those professions that serve some important aspect of public interest and the general good of society.Sullivan, William M. (2nd ed. 2005). ''Work and Integrity: The Crisis and Promise of Professionalism in America''. Jossey Bass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JBL (company)
JBL is an American audio equipment manufacturer headquartered in Los Angeles, California. The company was founded in 1946 by James Bullough Lansing, an American audio engineer and loudspeaker designer. JBL currently serves the home and professional audio markets. Their professional products include live PA systems, studio monitors, and loudspeakers for cinema. Their home products include home audio speakers, waterproof Bluetooth speakers, and high-end car audio. JBL is a subsidiary of Harman International, which is owned by Samsung Electronics. History James Bullough Lansing and his business partner Ken Decker started a company in 1927 in Los Angeles, manufacturing speaker drivers for radio consoles and radio sets. The firm was named '' Lansing Manufacturing Company'', from March 1, 1927. In 1933, head of the Metro-Goldwyn-Mayer (MGM) sound department, Douglas Shearer, dissatisfied with the loudspeakers of Western Electric and RCA, decided to develop his own. John Hil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Bullough Lansing
James Bullough Lansing (born James Martini, January 2, 1902 – September 29, 1949) was a pioneering American audio engineer and loudspeaker designer who was most notable for establishing two audio companies that bear his name, Altec Lansing and JBL, the latter taken from his initials, JBL. Biography Early years James Martini was born on January 2, 1902, in Greenridge, Nilwood Township, Macoupin County, Illinois to parents Henry Martini of St. Louis, Missouri, and Grace Erbs Martini of Central City, Illinois. His father was a coal mining engineer which meant the family moved around considerably in James' early years. He was the ninth of fourteen children. He lived for a short time with the Bullough family in Springfield, Illinois, and later took their name. Lansing graduated eighth grade at Lawrence School in Springfield, Illinois, attended Springfield High School and also took courses at a small business college in Springfield. At a young age he built a Leyden jar to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Telephone & Telegraph
AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies. During the Bell System's long history, AT&T was at times the world's largest telecommunications company, the world's largest cable television operator, and a regulated monopoly. At its peak in the 1950s and 1960s, it employed one million people and its revenue ranged between US$3 billion in 1950 ($ in present-day terms) and $12 billion in 1966 ($ in present-day terms). In 2005, AT&T was acquired by "Regional Bell Operating Company, Baby Bell" and former subsidiary SBC Communications for more than $16 billion ($ in present-day terms). SBC then changed its name to AT&T, AT&T Inc., with AT&T Corporation continuing to exist as a long-distance calling subsidiary until its dissolution o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodstock
The Woodstock Music and Art Fair, commonly referred to as Woodstock, was a music festival held from August 15 to 18, 1969, on Max Yasgur's dairy farm in Bethel, New York, southwest of the town of Woodstock, New York, Woodstock. Billed as "an Age of Aquarius, Aquarian Exposition: 3 Days of Peace & Music" and alternatively referred to as the Woodstock Rock Festival, it attracted an audience of more than 460,000. Thirty-two acts performed outdoors despite overcast and sporadic rain. It was one of the largest music festivals in history and became synonymous with the counterculture of the 1960s. The festival has become widely regarded as a pivotal moment in popular music history, as well as a defining event for the Silent Generation, silent and Baby boomers, baby boomer generations. The event's significance was reinforced by Woodstock (film), a 1970 documentary film, an accompanying Woodstock: Music from the Original Soundtrack and More, soundtrack album, and a Woodstock (song), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concert Halls
A concert hall is a cultural building with a stage that serves as a performance venue and an auditorium filled with seats. This list does not include other venues such as sports stadia, dramatic theatres or convention centres that may occasionally be used for concerts. ::''The list is organised alphabetically by geo-political region or continent and then by country within each region''. Africa Egypt Morocco South Africa Asia Armenia Azerbaijan China Georgia Hong Kong India Iran Israel Indonesia Japan Kazakhstan Lebanon Macau Malaysia North Korea Oman Philippines Singapore South Korea Syria Taiwan Thailand Turkey Vietnam Europe Albania Austria Belgium Bulgaria Croatia Czech Republic Denmark Estonia Finland France Germany Greece Hungary Iceland Ireland (Republic of) Italy Latvia Luxembourg Netherlands Norway Poland Portugal Romania Russia Serbia Slovakia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Movie Theater
A movie theater (American English) or cinema (English in the Commonwealth of Nations, Commonwealth English), also known as a movie house, cinema hall, picture house, picture theater, the movies, the pictures, or simply theater, is a business that contains auditoriums for viewing films for public entertainment. Most are commercial operations catering to the general public, who attend by purchasing Ticket (admission), tickets. The film is projected with a movie projector onto a large projection screen at the front of the auditorium while the dialogue, sounds and music are played through a number of wall-mounted speakers. Since the 1970s, subwoofers have been used for low-pitched sounds. Since the 2010s, the majority of movie theaters have been equipped for digital cinema projection, removing the need to create and transport a physical film print on a heavy reel. A great variety of films are shown at cinemas, ranging from animated films to Blockbuster (entertainment), blockbuste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Studio Monitor
Studio monitors are loudspeakers in speaker enclosures specifically designed for professional audio production applications, such as recording studios, filmmaking, television studios, radio studios and project or home studios, where accurate audio reproduction is crucial. Among audio engineers, the term ''monitor'' implies that the speaker is designed to produce relatively flat (linear) phase response, phase and frequency responses. In other words, it exhibits minimal emphasis or de-emphasis of particular frequencies, the loudspeaker gives an accurate reproduction of the tonal qualities of the source audio ("uncolored" and "transparent" are synonyms), and there will be no relative absolute phase, phase shift of particular frequencies—meaning no distortion in sound-stage perspective for stereo recordings. Beyond stereo sound-stage requirements, a linear phase response helps impulse response remain true to source without encountering "smearing". An unqualified reference to a ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
