amplifier

Share on Facebook Share on Twitter Email
Top
(ăm'plə-fī'ər) pronunciation
n.
  1. One that amplifies, enlarges, or extends.
  2. Electronics. A device, especially one using transistors or electron tubes, that produces amplification of an electrical signal.


Device that responds to a small input signal (voltage, current, or power) and delivers a larger output signal with the same waveform features. Amplifiers are used in radio and television receivers, high-fidelity audio equipment, and computers. Amplification can be provided by electromechanical devices (e.g., transformers and generators) and vacuum tubes, but most electronic systems now employ solid-state microcircuits. One amplifier is usually insufficient, so its output is fed into a second, whose output is fed to a third, and so on, until the output level is satisfactory.

For more information on amplifier, visit Britannica.com.

amplifier

In electronics, a device that takes a small electric signal and converts it into a large one. Amplifiers are used in stereo systems, electric guitars, and loudspeakers.

A device that accepts a small signal and outputs a larger signal that generally matches the waveform characteristics of the input. Amplifiers are available to boost electrical and optical signals. See amplifier classes, Class D amplifier and PWM.

Download Computer Desktop Encyclopedia to your PC, iPhone or Android.

Top
amplifier, device that accepts a varying input signal and produces an output signal that varies in the same way as the input but has a larger amplitude. The input signal may be a current, a voltage, a mechanical motion, or any other signal; the output signal is usually of the same nature. The most common types of amplifiers are electronic and have transistors or electron tubes as their principal components. Electronic amplifiers are used in radio and television transmitters and receivers, audio and stereo systems, intercoms, and other consumer electronics devices. Amplifiers in their simplest form are built around a single transistor. In one type of single-transistor amplifier, known as a common-emitter circuit, a varying input voltage is fed to the base of the transistor, and the output appears at the transistor's collector; the ratio of the output voltage to the input voltage is called the voltage gain. For many purposes a single transistor does not provide sufficient gain, or amplification. In a cascade, or multistage, amplifier, the output of the first amplifying device (transistor) is fed as input to the second amplifying device, whose output is fed as input to the third, and so on until an adequate signal amplification has been achieved. In a device such as a radio receiver, several amplifiers boost a weak input signal until it is powerful enough to drive a speaker. Usually, multistage amplifiers are not made of discrete components, but are built as integrated circuits. Another less common group of electronic amplifiers use magnetic devices as their principal components. There are also many kinds of mechanical amplifiers, e.g., the power steering system of an automobile. See operational amplifier.


Top

A circuit that increases the voltage, current, or power of a signal.


  • Genres: Rock

Biography

Guitarist/vocalist Sel Balamir formed Amplifier with drummer Matt Brobin and bassist Neil Mahony in the early 2000s in the shadows of post-punk mecca Manchester. But the band has more in common with such hard rock legends as Led Zeppelin, the Who, and Silverchair than they do with Morrissey and Marr. The band made their self-titled 2004 debut on the Music for Nations imprint, and followed it up with The Astronaut Dismantles Hal in 2005. ~ Rob Theakston, Rovi
  1. an electronic device used to increase the strength of an electromagnetic signal; especially such a device used to increase the strength of an acoustic signal.
  2. a combination of a receptor and various enzymes used to increase the strength of a chemical signal, as in a cascade sequence.

Previous:amplification refractory mutation system, amplification, amplicon
Next:amplify, amplimer, amplitude
Random House Word Menu:

categories related to 'amplifier'

Top
Random House Word Menu by Stephen Glazier
For a list of words related to amplifier, see:

  See crossword solutions for the clue Amplifier.
Wikipedia on Answers.com:

Amplifier (band)

Top
Amplifier
Origin Manchester, England
Genres Progressive rock, space rock, progressive metal, alternative rock
Years active 1999–present
Labels Ampcorp [current], SPV, Music For Nations
Website www.amplifiertheband.com
Members
Sel Balamir
Neil Mahony
Matt Brobin
Steve Durose

Amplifier are a progressive rock band from Manchester, England. The main trio forming the band are singer and guitarist Sel Balamir, bassist Neil Mahony and drummer Matt Brobin. The band has released three albums and two EPs since its inception in 1999. Their self-titled debut album was released in 2004 by Music for Nations. Their second album, Insider was released in Europe in 2006 on the SPV label. Their third album, The Octopus, was released to fans in December 2010 ahead of a full release in January 2011. The band are currently working on a new album.

Amplifier's sound has been described as "Soundgarden, Tool, Black Sabbath, Oceansize and Pink Floyd taking copious amounts of mind-altering substances and venturing on a trip through time and space (to another dimension), and back again."[1] Their music is characterised by lead singer and guitarist Balamir's effects pedals, extended heavy sections, atmospheric compositions and philosophical lyrics mainly dealing with astronomy, the cosmos and the darker side of human nature.

Contents

History

Debut album

After forming around 1998 Amplifier toured the UK and recorded a few demos and sent promo CDs to labels and the press. After being signed in May 2002 by British label Music for Nations, Amplifier were asked to support Deftones at Manchester Apollo. After the two singles 'The Consultancy' (b/w 'Glory Electricity') and 'Neon' (b/w 'Boomtime' and 'Throwaway'), the band’s self-titled debut album was released on the 6th of June, 2004 by Music for Nations – which is a subsidiary of the larger label distributor Zomba Records – and was very well received by English media and critics. As well as the standard 10-track jewel case, the album was released as a 13-track digi-pac. The extra tracks were the two segues (Drawing No1 and No2) and new track 'Half-Life'.

The label ran out of funds and was bought-out by Sony, which was not interested in working with smaller bands. After buying the rights for the album back the band went label-hunting. In 2005, they signed a deal with SPV (Germany). The debut was re-released in May of that year with a second disc containing the three b-sides and 'Half-Life' and videos for the singles "The Consultancy" and "Neon".

Since 2005, the band has done extensive touring both in the UK and Europe. The band uses many effects pedals to create a wall of noise. In some songs vocals are distorted and Balamir samples his guitar to create a thicker sound. Reverb and delay effects often contribute to an eerie atmosphere. The EP "The Astronaut Dismantles HAL" which contains 6 songs as well as a hidden track was released on 17 October 2005. In 2006, the band played numerous festival dates including opening the main-stage at Download Festival, UK

Second album

Their second album, titled Insider includes 12 tracks, three of which were posted to the band's MySpace before the album's release. The band also recorded extra tracks to be used as future b-sides. The album was released on 29 September in Germany and Austria and 2 October in the rest of Europe 2006 on SPV in a Digipack with 12 page booklet. 'Procedures' was chosen as a radio single to promote the album and has been played by Zane Lowe on Radio One. No singles from the album will be released to the public. A video for Procedures was filmed during the band's Munich show, on the European tour.

After their own UK and European tour, Amplifier were main support for Opeth's European Tour. During their European tour in early 2007 they were supported by the Swiss indie rock band Cloudride. Before taking time to write and record their third album Amplifier were main support to Porcupine Tree on their UK tour in April 2007.

Third Album

In March 2008, Amplifier confirmed that they were recording their third and fourth albums simultaneously. In January 2010, Amplifier confirmed that this had changed and that they planned to release the combined works as a double album, named The Octopus. The album was released online a year later in 2011, quickly followed by a full release on 21 February 2011. It was met with generally positive acclaim in the press. After his former band Oceansize had broken up, guitarist Steve Durose joined Amplifier for their 2011 tour.[2]

Members

Discography

Albums

EPs

Singles

  • 2003: "The Consultancy"
  • 2004: "Neon"
  • 2005: "Everyday Combat" (Radio promo only)
  • 2006: "Procedures" (Radio promo only)

External links


Translations:

Amplifier

Top

Dansk (Danish)
n. - forstærker

Nederlands (Dutch)
versterker

Français (French)
n. - amplificateur

Deutsch (German)
n. - Verstärker

Ελληνική (Greek)
n. - (ηλεκτρ.) ενισχυτής

Italiano (Italian)
amplificatore

Português (Portuguese)
n. - amplificador (m) (Eletrôn.)

Русский (Russian)
усилитель

Español (Spanish)
n. - amplificador

Svenska (Swedish)
n. - förstärkare

中文(简体)(Chinese (Simplified))
扬声器, 放大器, 扩音器, 详述者

中文(繁體)(Chinese (Traditional))
n. - 揚聲器, 放大器, 擴音器, 詳述者

한국어 (Korean)
n. - 확대경, 증폭기

日本語 (Japanese)
n. - 拡大鏡, 増幅器

العربيه (Arabic)
‏(الاسم) مضخم, مكبر‏

עברית (Hebrew)
n. - ‮מגבר (במקלט רדיו)‬


Best of Web:

amplifier

Top
Some good "amplifier" pages on the web:

How?
electronics.howstuffworks.com

Post a question - any question - to the WikiAnswers community:

Copyrights:

Mentioned in

servo amplifier (electronics)
LNA (intelligence)
closed-loop voltage gain (electronics)
ferrimagnetic amplifier (electronics)