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The Wharfedale MACH
The Wharfedale MACH series of loudspeakers consists of the MACH 3, 5, 7, and 9. This is an informational page devoted to owners and users of these loudspeakers and those interested in history and construction of electronic sound reproduction. These loudspeakers were manufactured at Rank Hi-Fi, Wharfedale Works in West Yorkshire by Wharfedale Loudspeakers in England ( UK). They were featured in the Gramophone magazine in July 1982. This range of high-efficiency ( hi-fi) loudspeakers were released to replace their "E" Series of loudspeakers. They were originally launched with prices from £200 to £430 per pair. The drive units boasted a high sensitivity due to care in design and construction. The tweeters (one per speaker) use horn-loaded compression. The woofers and mids use lightweight fibre cones with ceramic magnets and ventilated aluminium coils. The cabinets were made out of wood and were marketed for bass reflex. The cabinets have modular front baffles made from styrof ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wharfedale Electronics
Wharfedale is a Chinese audio equipment manufacturer best known for loudspeakers. It is currently part of the International Audio Group. Wharfedale also used to brand televisions, DVD players, set-top boxes and Mini-System, Hi-Fi players. Since 2008, they have only manufactured and sold audio equipment. History Wharfedale Wireless Works was founded in 1932 by Gilbert Briggs, and became one of Britain's leading manufacturers of audiophile equipment, particularly loudspeakers. In addition to winning awards by groups such as the Bradford Radio Society, in mass public testing at Carnegie Hall Wharfedale speakers proved indistinguishable from live music. Innovations introduced by Wharfedale under Briggs included such basics as the Audio crossover#Classification based on the number of filter sections, two-way Loudspeaker#Multi driver systems, loudspeaker and the ceramic magnet. In the 1950s and 1960s, Wharfedale became famous for its technique of eliminating cabinet resonances by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudspeaker
A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or "loudspeaker", comprises one or more such speaker ''drivers'', an enclosure, and electrical connections possibly including a crossover network. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone; indeed the ''dynamic speaker'' driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Recording And Reproduction
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Sound recording is the transcription of invisible vibrations in air onto a storage medium such as a phonograph disc. The process is reversed in sound reproduction, and the variations stored on the medium are transformed back into sound waves. Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gramophone
''Gramophone'' is a magazine published monthly in London, devoted to classical music, particularly to reviews of recordings. It was founded in 1923 by the Scottish author Compton Mackenzie who continued to edit the magazine until 1961. It was acquired by Haymarket in 1999. In 2013 the Mark Allen Group became the publisher. The magazine presents the Gramophone Awards each year to the classical recordings which it considers the finest in a variety of categories. On its website ''Gramophone'' claims to be: "The world's authority on classical music since 1923." This used to appear on the front cover of every issue; recent editions have changed the wording to "The world's best classical music reviews." Its circulation, including digital subscribers, was 24,380 in 2014. Listings and the ''Gramophone'' Hall of Fame Apart from the annual Gramophone Classical Music Awards, each month features a dozen recordings as Gramophone Editor's Choice (now Gramophone Choice). Then, in the annua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overload Protection
A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, electric current, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices. Other functions that power supplies may perform include limiting the current drawn by the load to safe levels, shutting off the current in the event of an electrical fault, power conditioning to prevent electronic noise or voltage surges on the input from reaching the load, power-factor correction, and storing energy so it can continue to power the load in the event of a temporary interruption in the source power (u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bose Corporation
Bose Corporation () is an American manufacturing company that predominantly sells audio equipment. The company was established by Amar Bose in 1964 and is based in Framingham, Massachusetts. It is best known for its home audio systems and speakers, noise cancelling headphones, professional audio products and automobile sound systems. Bose has a reputation for being particularly protective of its patents, trademarks, and brands. The majority owner of Bose Corporation is the Massachusetts Institute of Technology. Non-voting shares were donated to MIT by founder Amar Bose, and receive cash dividends. According to the company annual report for the 2021 financial year, Bose Corporation's annual sales were $3.2 billion, and the company employed approximately 7,000 people. History The company was founded in Massachusetts in 1964 by Amar Bose with angel investor funding, including Amar's thesis advisor and professor, Y. W. Lee. Bose's interest in speaker systems had begun in 1956 wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JBL (company)
JBL is an American audio equipment manufacturer headquartered in Los Angeles, California, United States. JBL serves the customer home and professional market. The professional market includes studios, installed/tour/portable sound, cars, music production, DJ, cinema markets, etc. JBL is owned by Harman International, a subsidiary of Samsung Electronics. JBL was founded by James Bullough Lansing (1902–1949), an American audio engineer and loudspeaker designer best known for establishing two audio companies that bear his name, Altec Lansing and JBL, the latter taken from his initials. History Lansing and his business partner Ken Decker started a company in 1927, in Los Angeles, manufacturing six- and eight-inch 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 RC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustic Research
Acoustic Research was a Cambridge, Massachusetts-based company that manufactured high-end audio equipment. The brand is now owned by VOXX. Acoustic Research was known for the AR-3 series of speaker systems, which used the acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers. AR's line of acoustic suspension speakers were the first loudspeakers with relatively flat response, extended bass, wide dispersion, small size, and reasonable cost. Company history Acoustic Research, Inc. (“AR”) was founded in 1954 by audio pioneer, writer, inventor, researcher and audio-electronics teacher Edgar Villchur and his student, Henry Kloss. AR was established to produce the $185 () model AR-1, a loudspeaker design incorporating the acoustic suspension principle based on , granted to Edgar Villchur and assigned to Acoustic Research in 1956. Edgar Villchur's technical innovation was based on objective testing and research, most of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quad Electroacoustics
Quad Electroacoustics is a Chinese manufacturer of hi-fi equipment, based in Shenzhen, China. Corporate history The company was founded by Peter J. Walker in 1936 in London, and was initially called ''S.P. Fidelity Sound Systems''. In 1936 the name was changed to the ''Acoustical Manufacturing Co. Ltd''. The company moved from London to Huntingdon in 1941 after being bombed out of London in World War II. The company initially produced only public address equipment but after the war they began to produce equipment designed for use in the home as a result of the rising demand for high quality domestic sound reproduction. Within a few years the company had transitioned almost entirely to manufacturing models for the home audio market. Peter Walker was quoted in December 1975 in ‘Wireless World’ magazine, "An audio power amplifier is required to produce an output signal that differs from the input signal in magnitude only. It must therefore have occurred to every circuit d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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