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Ampeg Portaflex
The Portaflex is a line of amplifiers for electric guitars and bass guitars created by Ampeg and originally designed by Jess Oliver. Portaflex referred to the amps’ ''porta''ble re''flex'' baffle system. The innovative ‘flip-top’ amplifier head design helped dissipate heat and reduce chassis and tube vibration during use, and inverted to store inside the cabinet for portability. The speaker cabinets were carefully tuned with ports and baffling. The introduction of the Portaflex series established a new standard for bass amplification and completely replaced Ampeg’s previous amplifier lineup. The Portaflex line has many different configurations. B-15 The first amp in Ampeg’s Portaflex series was the B-15, a 2-channel tube amplifier with per-channel volume controls and shared Baxandall-type tone control, housed within a ’flip-top’ tuned-port cabinet design mounted to a dolly. Shortly after the B-15’s introduction in 1960, it became the most popular bass amp in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampeg Portaflex B-15N
Ampeg is a manufacturer best known for its bass amplifiers. Originally established in 1946 in Linden, New Jersey by Everett Hull and Stanley Michaels as "Michael-Hull Electronic Labs," today Ampeg is part of the Yamaha Guitar Group. Although specializing in the production of Bass amplifier, bass amplifiers, Ampeg has previously manufactured guitar amplifiers and pick up (music technology), pickups and instruments including double basses, bass guitars, and electric guitars. History Early years (1946―1959) Everett Hull (born Charles Everitt Hull), a pianist and bassist from Wisconsin working with bandleader Lawrence Welk in Chicago, had invented a Pick up (music technology), pickup for upright bass in an effort to amplify his instrument with more clarity. Hull's design placed a transducer atop a support peg inside the body of his instrument, inspiring his wife Gertrude to name the invention the "Ampeg," an abbreviated version of "amplified peg." On February 6, 1946, Hull fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stax Records
Stax Records is an American record company, originally based in Memphis, Tennessee. Founded in 1957 as Satellite Records, the label changed its name to Stax Records in 1961. It also shared its operations with sister label Volt Records. Stax was influential in the creation of Southern soul and Memphis soul music. Stax also released gospel, funk, and blues recordings. Renowned for its output of blues music, the label was founded by two siblings and business partners, Jim Stewart and his sister Estelle Axton (STewart/AXton = Stax). It featured several popular ethnically integrated bands (including the label's house band, Booker T. & the M.G.'s) and a racially integrated team of staff and artists unprecedented in that time of racial strife and tension in Memphis and the South. According to ethnomusicologist Rob Bowman, the label's use of "one studio, one equipment set-up, the same set of musicians and a small group of songwriters led to a readily identifiable sound. It was a soun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eduardo Obregón Pagán
Eduardo Obregón Pagán (born August 13, 1960) is the Bob Stump Endowed Professor of History at Arizona State University, and one of the hosts of the PBS popular series History Detectives since 2008. Biography A native of Mesa, Arizona, Eduardo Pagán received his BA from Arizona State University in 1987, an M.A. from the University of Arizona in 1989, another MA from Princeton University in 1991, and a Ph.D. from Princeton University in 1996. While at Princeton he was an exchange scholar at Yale University. He was an acting assistant dean of students at Princeton University (1991–1992), a faculty member at Williams College (1995–2000), a program officer at the National Endowment for the Humanities (2000–2004), and department chair of Language, Cultures, and History at Arizona State University (2004–2008). He has also appeared in the 2002 episode ''Zoot Suit Riots'' on PBS’s American Experience. Pagán is a frequent guest lecturer on topics such as American West, La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Premier Guitar
''Premier Guitar'' is a media company devoted to guitarists. It is based in Marion, Iowa, and it's staff is focused on creating the best website, videos, podcasts, and print/digital magazine for gearheads around the world. Interviews have included guitarists such as Pete Townshend of The Who, Ron Wood of the Rolling Stones, Joe Perry of Aerosmith, Guthrie Govan, Brent Hinds and Bill Kelliher of Mastodon, and Dave Mustaine and Chris Broderick of Megadeth. The magazine is published online for free, and includes multimedia such as instructional videos and podcasts ''Premier Guitar'' was originally published under the name ''Musicians Hotline'' through 2006. History ''Premier Guitar'' was founded in February 2007. ''Premier Guitar'' is published by Gearhead Communications, LLC, a privately owned company that is headquartered in Marion, Iowa. ''Premier Guitar'' also has offices in Nashville, Minneapolis, Los Angeles, San Francisco, and Peterborough, New Hampshire. Content ''Premi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Class-D Amplifier
A class-D amplifier or switching amplifier is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs) operate as electronic switches, and not as linear gain devices as in other amplifiers. They operate by rapidly switching back and forth between the supply rails, being fed by a modulator using pulse width, pulse density, or related techniques to encode the audio input into a pulse train. The audio passes through a simple low-pass filter into the loudspeaker. The high-frequency pulses are blocked. Since the pairs of output transistors are never conducting at the same time, there is no other path for current flow apart from the low-pass filter/loudspeaker. For this reason, efficiency can exceed 90%. History The first Class-D amplifier was invented by British scientist Alec Reeves in the 1950s and was first called by that name in 1955. The first commercial product was a kit module called the X-10 released by Sinclair Radionics in 1964. Howeve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transistor
upright=1.4, gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electrical power, power. The transistor is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more are found embedded in integrated circuits. Austro-Hungarian physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transistor in 1926, but it was not possible to actually cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owen Biddle (musician)
Owen Biddle (born October 1, 1977) is an American bass guitarist, record producer and songwriter, known for his work with hip hop group The Roots On August 25, 2011, he announced he was leaving The Roots to focus on his band, Mister Barrington. In 2020, he became a member of the band Squeeze. Prior to joining the group, Biddle was credited with production and writing on The Roots' Grammy-nominated album, ''Game Theory''. Other work includes multiple Grammy-winning recordings with John Legend in 2011, Booker T. Jones in 2012; also, with Al Green, Beanie Sigel, Baaba Maal, Jazmine Sullivan, Taylor Dayne, Enemy Earth, Jazzyfatnastees. He is also a member of The Trolleyvox and was a bassist, composer and member of the Philadelphia-based rock band Pepper's Ghost. Biddle is a member of New York City–based Mister Barrington, along with English keyboardist Oli Rockberger and drum virtuoso Zach Danziger. As part of a recurring sketch on ''Late Night with Jimmy Fallon'', called " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Justin Meldal-Johnsen
Justin Meldal-Johnsen (born March 26, 1970) is an American musician, record producer, songwriter and musical director. He is best known for his work with artists such as Beck, Paramore, Nine Inch Nails, M83, Air, and St. Vincent. Meldal-Johnsen served as the touring bassist, guitarist, and keyboardist for Nine Inch Nails between 2008 and 2009, and was Beck's bassist and musical director from 1996 until mid-2016. In 2021, he began work as a bassist, keyboardist and musical director for St. Vincent. Other artists Meldal-Johnsen has worked with include Garbage, The Mars Volta, Frank Ocean, Dixie Chicks, Tori Amos, Dido, Charlotte Gainsbourg, Goldfrapp, Blood Orange, Pete Yorn, Turin Brakes, Marianne Faithfull and Ladytron. As a producer, Meldal-Johnsen has worked with M83, Paramore, Metric, Tegan and Sara, Deafheaven, Poppy, Jimmy Eat World, The Naked and Famous, School of Seven Bells, Neon Trees, Young the Giant, Ken Andrews, Division Day and more. Musician career and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darryl Jones
Darryl Jones (born December 11, 1961) is an American bass guitarist. He has been recording and touring with the Rolling Stones since 1993. He has also played in bands with Miles Davis and Sting, among others. Career Darryl Jones was born on December 11 1961 in Chicago, Illinois, on the city's south side. His father was a drummer and his mother frequently listened to soul music on the radio. When Jones was seven, his father taught him how to play the drums and xylophone. When he was nine, he saw his neighbour Angus Thomas playing bass in a school talent show, which inspired him to switch to bass. He began studying under Thomas, Within a year, he performed with his brother at the next school talent show. His mother would drive him to gigs. After completing the music course at Chicago Vocational High School at 17, Jones started playing on Chicago music scene, playing alongside Vincent Wilburn Jr., Matthew Rose, and Perry Wilson. He attended Southern Illinois University Carbonda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chuck Rainey
Charles Walter Rainey III (born June 17, 1940) is an American bass guitarist who has performed and recorded with many well-known acts, including Aretha Franklin, Steely Dan, and Quincy Jones. Rainey is credited for playing bass on more than 1,000 albums, and is one of the most recorded bass players in the history of recorded music. Early life Rainey was born in Cleveland, Ohio on June 17, 1940, and grew up in Youngstown. His parents were both amateur pianists. He learned piano, violin, and trumpet as a child and majored in brass instruments in college. He attended Lane College in Jackson, Tennessee. Rainey began playing bass guitar in the military. Career After leaving the military, Rainey joined a local band. His first big professional gig was playing with Big Jay McNeely. He then joined up with Sil Austin to tour Canada and New York. In 1962, Rainey joined King Curtis and his All-Star band; in 1965, they opened for The Beatles' 1965 US tour. He joined Quincy Jones's big b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald "Duck" Dunn
Donald "Duck" Dunn (November 24, 1941 – May 13, 2012) was an American bass guitarist, session musician, record producer, and songwriter. Dunn was notable for his 1960s recordings with Booker T. & the M.G.'s and as a session bassist for Stax Records. At Stax, Dunn played on thousands of records, including hits by Otis Redding, Sam & Dave, Rufus Thomas, Carla Thomas, William Bell, Eddie Floyd, Johnnie Taylor, Albert King, Bill Withers, Elvis Presley and many others. In 1992, he was inducted in the Rock and Roll Hall of Fame as a member of Booker T. & the M.G.'s. He is ranked number 40 on ''Bass Player'' magazine's list of "The 100 Greatest Bass Players of All Time". Early life Dunn was born in Memphis, Tennessee. His father nicknamed him "Duck" while watching Disney cartoons with him one day. Dunn grew up playing sports and riding his bike with another future professional musician, Steve Cropper. Career 1960s: First bands After Cropper began playing guitar with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amplifier
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 voltage or current ( power, voltage or current amplifier). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a greater amplitude signal at its output. The ratio of output to input voltage, current, or power is termed gain (voltage, current, or power gain). An amplifier, by definition has gain greater than unity (if the gain is less than unity, the device is an attenuator). An amplifier can either be a separate piece of equipment or an electrical circuit contained within another device. Amplification is fundamental to modern electronics, and amplifiers are widely used in almost all electronic equipment. Amplifiers can be ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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