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Boulder Amplifiers
{{otheruses, Boulder (other) Boulder Amplifiers is a private corporation founded in Boulder, Colorado in 1983 by Jeff Nelson as a manufacturer of high-end, solid state professional audio electronics. The early, primary technology used to distinguish Boulder from other audio manufacturers was the use of the 990 discrete gain stage, based on the original work of Deane Jensen. In subsequent years, Boulder Amplifiers have shifted their focus from studio electronics to high-end audio electronics utilizing an updated third- and fourth-generation variant of the 990 gain stage and are primarily known for creating products with no limits on retail price, extremely complex engineering, and chassis design which doubles as industrial art. References Reviews *Fremer, MichaelBoulder 2008 phono preamplifier & 2010 preamplifierin ''Stereophile ''Stereophile'' is a monthly American audiophile magazine which reviews high-end audio equipment, such as loudspeakers and amplifiers, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulder, Colorado
Boulder is a home rule city that is the county seat and most populous municipality of Boulder County, Colorado, United States. The city population was 108,250 at the 2020 United States census, making it the 12th most populous city in Colorado. Boulder is the principal city of the Boulder, CO Metropolitan Statistical Area and an important part of the Front Range Urban Corridor. Boulder is located at the base of the foothills of the Rocky Mountains, at an elevation of above sea level. Boulder is northwest of the Colorado state capital of Denver. It is home of the main campus of the University of Colorado, the state's largest university. History On November 7, 1861, the Colorado General Assembly passed legislation to locate the University of Colorado in Boulder. On September 20, 1875, the first cornerstone was laid for the first building (Old Main) on the CU campus. The university officially opened on September 5, 1877. In 1907, Boulder adopted an anti- saloon ordinanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-end Audio
High-end audio is a class of consumer home audio equipment marketed to audiophiles on the basis of high price or quality, and esoteric or novel sound reproduction technologies. The term can refer simply to the price, to the build quality of the components, or to the subjective or objective quality of sound reproduction. Definition The distinction between the terms ''high end'' and '' high fidelity'' is not well defined. According to one industry commentator, high-end could be defined as, "Gear below which's price and performance one could not go without compromising the music and the sound."Szabady, Paul (January 2008)"The Rega P3-24 Turntable" ''Stereo Times''Archivedfrom the original on 21 November 2013 Harry Pearson, founder of ''The Absolute Sound'' magazine, is widely acknowledged to have coined the term ''high-end audio''. Costs High-end audio equipment can be extremely expensive. It is sometimes referred to as ''cost-no-object'' equipment. Audiophile equipment can en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid State (electronics)
Solid-state electronics means semiconductor electronics: electronic equipment using semiconductor devices such as transistors, diodes and integrated circuits (ICs). The term is also used as an adjective for devices in which semiconductor electronics that have no moving parts replace devices with moving parts, such as the solid-state relay in which transistor switches are used in place of a moving-arm electromechanical relay, or the solid-state drive (SSD) a type of semiconductor memory used in computers to replace hard disk drives, which store data on a rotating disk. History The term "solid-state" became popular at the beginning of the semiconductor era in the 1960s to distinguish this new technology based on the transistor, in which the electronic action of devices occurred in a solid state, from previous electronic equipment that used vacuum tubes, in which the electronic action occurred in a gaseous state. A semiconductor device works by controlling an electric curr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professional Audio
Professional audio, abbreviated as pro audio, refers to both an activity and a category of high quality, studio-grade audio equipment. Typically it encompasses sound recording, sound reinforcement system setup and audio mixing, and studio music production by trained sound engineers, audio engineers, record producers, and audio technicians who work in live event support and recording using mixing consoles, recording equipment and sound reinforcement systems. Professional audio is differentiated from consumer- or home-oriented audio, which are typically geared toward listening in a non-commercial environment. Professional audio can include, but is not limited to broadcast radio, audio mastering in a recording studio, television studio, and sound reinforcement such as a live concert, DJ performances, audio sampling, public address system set up, sound reinforcement in movie theatres, and design and setup of piped music in hotels and restaurants. Professional audio equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deane Jensen
Deane Jensen was the founder of Jensen Transformers, Inc, and the inventor of the 990 Operational Amplifier. He also developed the COMTRAN circuit analysis software. Early life Jensen grew up in Princeton, New Jersey. His father, Arthur S. Jensen, was a physicist who earned his PhD at the University of Pennsylvania in 1941. He went to Penn as well, majoring in physics and electrical engineering. In 1961, he was chief studio engineer for the student-run radio station, WXPN-FM. 990 Op Amp Jensen developed a low-noise, high-performance operational amplifier called the 990 in the late 1970s and was awarded a patent for it September 1, 1981 Following the granting of the patent, Jensen published the circuit so that it could be the basis of further, public development. The circuit has gone on to be popular with both professional equipment manufacturers as well as Hobbyists. It is also pin-compatible with the API 2520, contributing to its popularity. In 2018, the 990 op amp was induc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereophile
''Stereophile'' is a monthly American audiophile magazine which reviews high-end audio equipment, such as loudspeakers and amplifiers, and audio-related news. History Founded in 1962 by J. Gordon Holt. ''Stereophile'' is the highest-circulation hi-fi magazine in the Americas and possibly the world. In 1998, ''Stereophile'' was acquired by Petersen Publishing. Until 2018, ''Stereophile'' was published in New York by The Enthusiast Network, a publisher of special interest magazines. The magazine was formerly based in Santa Fe, New Mexico Santa Fe ( ; , Spanish for 'Holy Faith'; tew, Oghá P'o'oge, Tewa for 'white shell water place'; tiw, Hulp'ó'ona, label= Northern Tiwa; nv, Yootó, Navajo for 'bead + water place') is the capital of the U.S. state of New Mexico. The name “S .... During this period it was published eight times a year. until the August 1987 issue, when it started monthly publication. In March 2018, ''Stereophile'' was purchased, along with related magazine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Amplifier Manufacturers
Audio most commonly refers to sound, as it is transmitted in signal form. It may also refer to: Sound * Audio signal, an electrical representation of sound *Audio frequency, a frequency in the audio spectrum * Digital audio, representation of sound in a form processed and/or stored by computers or digital electronics *Audio, audible content (media) in audio production and publishing * Semantic audio, extraction of symbols or meaning from audio * Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective * Audio equipment Entertainment *AUDIO (group), an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 * ''Audio'' (album), an album by the Blue Man Group * ''Audio'' (magazine), a magazine published from 1947 to 2000 *Audio (musician), British drum and bass artist * "Audio" (song), a song by LSD Computing *, an HTML element, see HTML5 audio See also *Acoustic (other) *Audible (other) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compact Disc Player Manufacturers
Compact as used in politics may refer broadly to a pact or treaty; in more specific cases it may refer to: * Interstate compact * Blood compact, an ancient ritual of the Philippines * Compact government, a type of colonial rule utilized in British North America * Compact of Free Association whereby the sovereign states of the Federated States of Micronesia, the Republic of the Marshall Islands and the Republic of Palau have entered into as associated states with the United States. * Mayflower Compact, the first governing document of Plymouth Colony * United Nations Global Compact * Global Compact for Migration, a UN non-binding intergovernmental agreement Mathematics * Compact element, those elements of a partially ordered set that cannot be subsumed by a supremum of any directed set that does not already contain them * Compact operator, a linear operator that takes bounded subsets to relatively compact subsets, in functional analysis * Compact space, a topological space such t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Equipment Manufacturers Of The United States
Audio most commonly refers to sound, as it is transmitted in signal form. It may also refer to: Sound *Audio signal, an electrical representation of sound *Audio frequency, a frequency in the audio spectrum *Digital audio, representation of sound in a form processed and/or stored by computers or digital electronics *Audio, audible content (media) in audio production and publishing * Semantic audio, extraction of symbols or meaning from audio *Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective *Audio equipment Entertainment *AUDIO (group), an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 * ''Audio'' (album), an album by the Blue Man Group * ''Audio'' (magazine), a magazine published from 1947 to 2000 *Audio (musician), British drum and bass artist * "Audio" (song), a song by LSD Computing *, an HTML element, see HTML5 audio See also *Acoustic (other) *Audible (other) *Audi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manufacturing Companies Based In Colorado
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range of human activity, from handicraft to high-tech, but it is most commonly applied to industrial design, in which raw materials from the primary sector are transformed into finished goods on a large scale. Such goods may be sold to other manufacturers for the production of other more complex products (such as aircraft, household appliances, furniture, sports equipment or automobiles), or distributed via the tertiary industry to end users and consumers (usually through wholesalers, who in turn sell to retailers, who then sell them to individual customers). Manufacturing engineering is the field of engineering that designs and optimizes the manufacturing process, or the steps through which raw materials are transformed into a final product. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
