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Powered Speakers
Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers. Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at dance events and raves; in private homes as part of hi-fi or home cinema audio systems and as computer speakers. They can be connected directly to a mixing console or other low-level audio signal source without the need for an external amplifier. Some active speakers designed for sound reinforcement system use have an onboard mixing console and microphone preamplifier, which enables microphones to be connected directly to the speaker. Active speakers have several advantages, the most obvious being their compactness and simplicity. Additionally the amplifier(s) can be designed to closely match the optimal requirements of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Loudspeaker
Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers. Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at dance events and raves; in private homes as part of hi-fi or home cinema audio systems and as computer speakers. They can be connected directly to a mixing console or other low-level audio signal source without the need for an external amplifier. Some active speakers designed for sound reinforcement system use have an onboard mixing console and microphone preamplifier, which enables microphones to be connected directly to the speaker. Active speakers have several advantages, the most obvious being their compactness and simplicity. Additionally the amplifier(s) can be designed to closely match the optimal requirements of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AppleDesign Powered Speakers (M6082) Back
Apple PowerCD is a CD player sold by Apple Computer in 1993 and discontinued several years later. It was a re-badged Philips-designed product (Philips CDF-100) which was sold in addition to Apple's speakers and also included a remote control. The PowerCD was capable of reading Kodak photo CDs, data CDs and audio CDs. It can connect to Macintosh personal computers through SCSI and also to stereo systems and televisions. History With the success of the Apple Newton, in mid-1992 Apple Industrial Design Group created a division called Mac Like Things which was to focus on what they saw as a whole new market for Apple in consumer electronic devices. The PowerCD marked Apple's first stand-alone consumer-oriented product brought to market, which did not require a computer for use. It was analogous to Sony's Discman portable CD players of the time, however, unlike Sony's and most others, Apple's could also be used as computer peripheral as well. And while most desktop Macs at the time i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speaker Cable
Speaker may refer to: Society and politics * Speaker (politics), the presiding officer in a legislative assembly * Public speaker, one who gives a speech or lecture * A person producing speech: the producer of a given utterance, especially: ** In poetry, the literary character uttering the lyrics of a poem or song, as opposed to the author writing the words of that character; see Character (arts) Electronics * Loudspeaker, a device that produces sound ** Computer speakers, speakers sold for use with computers ** Speaker driver, the essential electromechanical element of the loudspeaker Arts, entertainment and media * Los Speakers (or "The Speakers"), a Colombian rock band from the 1960s * ''The Speaker'' (periodical), a weekly review published in London from 1890 to 1907 * ''The Speaker'' (TV series), a 2009 BBC television series * "Speaker" (song), by David Banner * "Speakers" (Sam Hunt song), 2014 * ''The Speaker'', the second book in Traci Chee's Sea of Ink and Gold trilog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Range
Dynamic range (abbreviated DR, DNR, or DYR) is the ratio between the largest and smallest values that a certain quantity can assume. It is often used in the context of signals, like sound and light. It is measured either as a ratio or as a base-10 ( decibel) or base-2 (doublings, bits or stops) logarithmic value of the difference between the smallest and largest signal values. Electronically reproduced audio and video is often processed to fit the original material with a wide dynamic range into a narrower recorded dynamic range that can more easily be stored and reproduced; this processing is called dynamic range compression. Human perception The human senses of sight and hearing have a relatively high dynamic range. However, a human cannot perform these feats of perception at both extremes of the scale at the same time. The human eye takes time to adjust to different light levels, and its dynamic range in a given scene is actually quite limited due to optical glare. The ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Meyer (audio Engineer)
John Meyer is a pioneer in the sound reinforcement industry. In 1979 he founded Meyer Sound Laboratories with his wife, Helen Meyer. Biography John Meyer grew up in Berkeley, California. His earliest involvement with audio was in the late 1950s at the radio station KPFA. He received a radiotelephone third class license at 12 years old, and a second class license when he was 15. He attended Oakland High which was one of the first schools in the country to have an audio department. In the audio department he would build consoles and other audio devices John Meyer started his career in 1967 working in a Berkeley hi-fi store doing custom installs. There he met Steve Miller, who was looking to outfit his band. John Meyer assembled a custom amplification system for The Steve Miller Band when they appeared at the Monterey Pop Festival. John worked with Jim Meagher of Meagher Electronics at the Monterey Pop Festival. Soon after John Meyer started a company called Glyph to design and buil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meyer Sound Laboratories
Meyer Sound Laboratories is an American company based in Berkeley, California that manufactures self-powered loudspeakers, multichannel audio show control systems, electroacoustic architecture, and audio analysis tools for the professional sound reinforcement, fixed installation, and sound recording industries. The company's emphasis on research and measurement has resulted in the issuance of dozens of patents, including for the now-standard trapezoidal loudspeaker cabinet shape. Meyer Sound has pioneered other technologies that have become standard in the audio industry, including: processor-controlled loudspeaker systems, self-powered loudspeakers, curvilinear arraying, cardioid subwoofers, and source independent measurement. Some symphony halls and performing arts facilities utilize Meyer Sound products, such as the rehearsal area at Davies Symphony Hall in San Francisco, Svetlanov Hall in Moscow, Russia, and the Musikverein in Vienna, Austria. Meyer Sound's Constellation ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramount Pictures
Paramount Pictures Corporation is an American film and television production company, production and Distribution (marketing), distribution company and the main namesake division of Paramount Global (formerly ViacomCBS). It is the fifth-oldest film studio in the world, the second-oldest film studio in the United States (behind Universal Pictures), and the sole member of the Major film studio, "Big Five" film studios located within the city limits of Los Angeles. In 1916, film producer Adolph Zukor put 24 actors and actresses under contract and honored each with a star on the logo. In 1967, the number of stars was reduced to 22 and their hidden meaning was dropped. In 2014, Paramount Pictures became the first major Hollywood studio to distribute all of its films in digital form only. The company's headquarters and studios are located at 5555 Melrose Avenue, Hollywood, California. Paramount Pictures is a member of the Motion Picture Association of America, Motion Picture Associ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Driver
A compression driver is a small specialized diaphragm loudspeaker which generates the sound in a horn loudspeaker. It is attached to an acoustic horn, a widening duct which serves to radiate the sound efficiently into the air. It works in a "compression" mode; the area of the loudspeaker diaphragm is significantly larger than the throat aperture of the horn so that it provides high sound pressures. Horn-loaded compression drivers can achieve very high efficiencies, around 10 times the efficiency of direct-radiating cone loudspeakers. They are used as midrange and tweeter drivers in high power sound reinforcement loudspeakers, and in reflex or folded-horn loudspeakers in megaphones and public address systems. History In 1924 C. R. Hanna and J. Slepian were the first to discuss the benefits of using a large radiating diaphragm with a horn of smaller throat area as a means of increasing the efficiency of horn loudspeaker drivers. They correctly surmised that this arrange ... [...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] |
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] |
Linn Products
Linn Products is an engineering company that manufactures hi-fi and audio equipment. Founded by Ivor Tiefenbrun in Glasgow, Scotland, in 1973, the company is best known as the manufacturer of the Linn Sondek LP12 turntable. From 2007 Linn was one of the first audio manufacturers to introduce digital music streaming using the home network and internet. This has become the focus of the company's strategy leading to audio systems to support digital music playback of 24bit/192 kHz studio master quality recordings using a digital stream over a home network. Linn Records was the first to sell DRM-free 24-bit Studio Master quality tracks downloaded over the internet. This network approach was extended in 2013 with the introduction of the Linn Exakt technology to retain the 24-bit lossless signal in the digital domain to the active crossover. In late 2014 Linn announced the integration of TIDAL's lossless music streaming service into Linn DS digital players enabling access to o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naim Audio
Naim Audio is a British hi-fi manufacturer based in Wiltshire, United Kingdom. The company was founded in 1973. Following a 2011 merger with French loudspeaker manufacturer Focal, Naim is owned by VerVent Audio Group, a French company. History Naim began when Julian Vereker started Naim Audio Visual in 1969 and created a sound-to-light box that he hired out to film production companies. His disappointment with the sound of professional recording equipment at the time led him to design his own power amplifier. The company Naim Audio was incorporated in 1973.Price, DavidNaim That Tume. ''Hi-Fi World Magazine''. Archived froon 23 November 2010 Against the conventional wisdom – dating back to audio pioneer Edgar Villchur – that the loudspeakers determined the sound of a hi-fi system, and that amplifiers were simply a means to an end in moving the speakers, Vereker set about putting his ideas into practice. Amplifiers The first product Naim put on the market was the NAP160 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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