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Magnepan MG1
Magnepan is a private high-end audio loudspeaker manufacturer in White Bear Lake, Minnesota, United States. Their loudspeaker technology was conceived and implemented by engineer Jim Winey in 1969. Overview Magnepan's speaker design, sold under the brand name Magneplanar (often referred to as "Maggies"), differs from that of conventional speakers in relying not on cones mounted in an enclosure, but on a planar driver system mounted in a panel. A Magneplanar's reproducing mechanism (magnetostatic loudspeaker) comprises thin conductive wires and or foil strips attached to a thin sheet of Mylar residing in a magnetic field created by a vertical array of permanent strip magnets. When an electric signal is applied to the conductors, the resultant electric current moving through the magnetic field applies a force to the wires or tape, moving the Mylar film sheet, which projects sound as a dipole. In principle, this approach relies on the same concept as a voice coil-driven cone speak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnepan MG1
Magnepan is a private high-end audio loudspeaker manufacturer in White Bear Lake, Minnesota, United States. Their loudspeaker technology was conceived and implemented by engineer Jim Winey in 1969. Overview Magnepan's speaker design, sold under the brand name Magneplanar (often referred to as "Maggies"), differs from that of conventional speakers in relying not on cones mounted in an enclosure, but on a planar driver system mounted in a panel. A Magneplanar's reproducing mechanism (magnetostatic loudspeaker) comprises thin conductive wires and or foil strips attached to a thin sheet of Mylar residing in a magnetic field created by a vertical array of permanent strip magnets. When an electric signal is applied to the conductors, the resultant electric current moving through the magnetic field applies a force to the wires or tape, moving the Mylar film sheet, which projects sound as a dipole. In principle, this approach relies on the same concept as a voice coil-driven cone speak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eminent Technology
Eminent Technology is American audio electronics company based in Florida, established in 1983 by Bruce Thigpen. Their first product was an air bearing straight line tracking tonearm for phonograph playback, and was the first implementation of a captured air bearing for tonearm use. It was followed by a more advanced version of the tonearm. In 1985 the company began developing planar magnetic loudspeakers and in 1987 introduced the world's first full range push-pull planar magnetic loudspeaker, the LFT-3. Another of the company's products is the Thigpen Rotary Woofer. Typical subwoofer products are inefficient at producing desired sound pressure levels at frequencies below 20 Hz, but the TRW is designed to cover the range down to 1 Hz of the sound spectrum. (The technical principle would allow even zero Hz.) In the 90s Eminent Technology developed a smaller planar transducer for automotive applications. This was adapted for computer speakers as the LFT-11, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manufacturing Companies Based In Minnesota
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudspeaker Manufacturers
This is a list of notable manufacturers of loudspeakers. In regard to notability, this is not intended to be an all-inclusive list; it is a list of manufacturers especially noted for their loudspeakers and which have articles on Wikipedia. To see more manufacturers, please refer to the category Loudspeaker manufacturers. See also * Lists of companies * List of studio monitor manufacturers * :Audio amplifier manufacturers References {{reflist Loudspeaker manufacturers This is a list of notable manufacturers of loudspeakers. In regard to notability, this is not intended to be an all-inclusive list; it is a list of manufacturers especially noted for their loudspeakers and which have articles on Wikipedia. To see ... ... [...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) *A ... [...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] |
Sheet Metal
Sheet metal is metal formed into thin, flat pieces, usually by an industrial process. Sheet metal is one of the fundamental forms used in metalworking, and it can be cut and bent into a variety of shapes. Thicknesses can vary significantly; extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate, such as plate steel, a class of structural steel. Sheet metal is available in flat pieces or coiled strips. The coils are formed by running a continuous sheet of metal through a roll slitter. In most of the world, sheet metal thickness is consistently specified in millimeters. In the U.S., the thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its gauge. The larger the gauge number, the thinner the metal. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. Gauge differs between ferrous ( iron-based) metals and nonferrous metals such as aluminum or copper. Cop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetostatic Loudspeaker
A magnetostatic loudspeaker is a dipole loudspeaker that is similar to an electrostatic loudspeaker but uses high currents instead of using high voltages. Permanent magnets provide a static magnetic field and wires or strips carrying audio frequency currents are bonded to a thin diaphragm. The current flowing in the conductors interacts with the magnetic field and creates sound in much the same way as in a conventional dynamic driver. Because of its dipole structure, this kind of speaker creates sound mostly to its front and back. The impedance of a magnetostatic speaker is often mainly resistive, but in some cases may be so low that the amplifiers An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It may increase the power significantly, or its main effect may be to boost the v ... have to be ready to accommodate the low impedance load. Magnetostatic speakers p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrostatic Loudspeakers
An electrostatic loudspeaker (ESL) is a loudspeaker design in which sound is generated by the force exerted on a membrane suspended in an electrostatic field. Design and functionality The speakers use a thin flat diaphragm usually consisting of a plastic sheet coated with a conductive material such as graphite sandwiched between two electrically conductive grids, with a small air gap between the diaphragm and grids. For low distortion operation, the diaphragm must operate with a constant charge on its surface, rather than with a constant voltage. This is accomplished by either or both of two techniques: the diaphragm's conductive coating is chosen and applied in a manner to give it a very high surface resistivity, and/or a large value resistor is placed in series between the EHT (Extra High Tension or Voltage) power supply and the diaphragm (resistor not shown in the diagram here). However, the latter technique will still allow distortion as the charge will migrate across the d ... [...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] |
MartinLogan
MartinLogan (ML) is a Canadian/US company producing conventional subwoofer speakers as well as floor-standing, wall-mounted, and in-wall hybrid speakers using electrostatic loudspeaker and planar magnetic thin film loudspeaker technology. Origins MartinLogan was founded by Gayle Martin Sanders and Ron Logan Sutherland who met in the late 1970s at a high-end audio store Sanders managed in Lawrence, Kansas. Despite different backgrounds (Sanders had trained in architecture and advertising, Sutherland in electrical engineering) they shared a passion for music and electrostatic loudspeakers. Discussion of electrostatic speakers and the available technology led Sanders and Sutherland to design and build an electrostatic speaker. Sanders organized a research and development team to transform a design he had tinkered with for more than a decade into a marketable electrostatic transducer. The first prototype The first prototype was ready in 1980. The sound quality was adequate, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
