Loudspeaker

A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound. The first primitive loudspeakers were invented during the development of telephone systems in the late 1800s, but electronic amplification by vacuum tube beginning around 1912 made loudspeakers truly practical. By the 1920s they were used in radios, phonographs, public address systems and theatre sound systems for talking motion pictures.

The most widely used type of speaker today is the dynamic speaker, invented in 1925 by Edward W. Kellogg and Chester W. Rice. The dynamic speaker operates on the same basic principle as a dynamic microphone, but in reverse, to produce sound from an electrical signal. When an alternating current electrical audio signal is applied to its voice coil, a coil of wire suspended in a circular gap between the poles of a permanent magnet, the coil is forced to move rapidly back and forth due to Faraday's law of induction, which causes a diaphragm (usually conically shaped) attached to the coil to move back and forth, pushing on the air to create sound waves. Besides this most common method, there are several alternative technologies that can be used to convert an electrical signal into sound. The sound source (e.g., a sound recording or a microphone) must be amplified with an amplifier before the signal is sent to the speaker.

Loudspeakers (band)

Loudspeakers (stylised as LOUDspeakers) is a Georgian rock band formed in 2009.

History

Loudspeakers formed in 2009 as an alternative rock band. In that year, the band recorded their first song in the kote kalandadze studio. In January 2010 they played their songs in Tbilisi rock club. In 2010 otar gurgenidze left the band, Zura Mchedlishvili replaced him. The same time Zura left and Dato Tsomaia joined the band.

The first important success of this band was when they played in Tbilisi Altervision-Newcomers and became a winner. In 2011 the band had the first solo concert in Magti Club. After this concert Aleko Dolidze left the band. It was an important loss but LoudSpeakers didn’t stop their work, Sandro Tsiklauri joined the band.

By today LoudSpeakers have played in festivals in Georgia and other countries around the world. For example, Tbilisi Open Air and Arenal Sound Festival.

The band realised their debut album Lighthouse on 4 March 2015.

Band members

  • Levan tskhvaradze – Lead Vocals and guitars (2009–present)
  • Podcasts:

    PLAYLIST TIME:

    Latest News for: loudspeakers

    CM Fadnavis Warns Stern Action Against Illegal Use Of Loudspeakers In Places Of Worship

    MENA FN 11 Mar 2025
    (MENAFN - IANS) Mumbai, March 11 (IANS) Maharashtra Chief Minister Devendra Fadnavis announced on Tuesday that stern action will be taken against the illegal use of loudspeakers in places of ... .

    Cops to crack down on use of loudspeakers on mosques: CM Devendra Fadnavis

    Hindustan Times 11 Mar 2025
    Chief minister Devendra Fadnavis is enforcing restrictions on the use of loudspeakers on mosques, even as the Muslim community observes the holy month of Ramadan ... revoked and the loudspeakers seized.

    Police remove loudspeakers from UP mosque, Imam booked

    Kashmir Media Service 10 Mar 2025
    Loudspeakers of a mosque in Uttar Pradesh were removed in Yogi Adityanath-led Uttar Pradesh state of India for making Sahar and Iftar announcements.

    Israel seizes loudspeakers from Al-Aqsa Mosque's Qibli Prayer Hall

    Middle East Monitor 10 Mar 2025
    Israeli occupation forces yesterday stormed the Qibli Prayer Hall at Al-Aqsa Mosque, seized the loudspeakers, and then withdrew from the area, local sources ...

    FIR against imam for calling azaan on loudspeaker in Sambhal

    Hindustan Times 10 Mar 2025
    An FIR was registered against an imam in Sambhal for allegedly calling the “azaan” (Islamic call to prayer) using a loudspeaker at high volume ... The policemen seized the loudspeaker ... The loudspeaker has ...

    Sambhal cleric booked, loudspeaker seized from mosque for violating volume limit during 'azaan'

    The Times of India 10 Mar 2025
    Police have registered a case against an imam and seized a loudspeaker from a mosque in the Chandausi area of Sambhal district for allegedly using it for 'azaan' at a volume exceeding the prescribed decibel limits.

    UP Police Remove Illegal Loudspeakers From Sambhal Mosque, Imam Booked

    MENA FN 09 Mar 2025
    (MENAFN - IANS) New Delhi, March 9 (IANS) Loudspeakers of a mosque in Uttar Pradesh's Sambhal district were removed for violation of rules related to control of noise emanating from places of ... .

    Sambhal police remove loudspeakers from mosque, register case

    The Hindu 09 Mar 2025
    The first information report of the police said the loudspeakers installed at the Punjabian masjid in Chandausi were used at volumes that breached the noise pollution regulations set by the Allahabad High Court ....

    UP Police remove loudspeakers from Sambhal mosque, Imam booked

    Madhyamam 09 Mar 2025
    The Uttar Pradesh Police removed loudspeakers from a mosque in Sambhal district for violating noise control regulations, officials said on Sunday ... on restricting loudspeaker use at places of worship.

    UP: Imam, 8 others arrested for announcing Iftar on loudspeaker

    The Siasat Daily 09 Mar 2025
    A group of nine Muslims including an imam were arrested in Uttar Pradesh’s Rampur town after the Iftar timing was announced on a loudspeaker at a local mosque ... announcements on loudspeakers.
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