Reference desk · Provenance

Image credits

Resonant documents equipment that was actually built and actually used, so every picture is of something that really existed. No photograph on this site is generated: every image of a system, a stage, or a person is a real archival photograph, credited below to its author with its licence and a link to the original file.

Drawings, schematics, and layouts follow the same rule — they are the working documents engineers actually made. Where an explanatory diagram has to be drawn fresh for this archive rather than found, it is labelled as a diagram and is never presented as a photograph of a historical event.

No invented photographs

AI is never used to depict a loudspeaker, a venue, a person, or a historical event. If a real image cannot be sourced and credited, the archive uses a labelled diagram or a typographic treatment instead.

Author, licence, source

Each image carries its creator and licence where it appears, and links back to the file it came from, so any claim on these pages can be traced to its evidence.

Photographs

Archival photographs

  • A woman standing beside a large folded horn loudspeaker in an early twentieth-century photograph

    Theater horn loudspeaker, early 20th century

    A woman standing beside a large folded horn loudspeaker in an early twentieth-century photograph

    Author: Author unknown·Licence: Public domain·Type: photograph

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  • A speaker at a flag-draped outdoor podium using an early microphone beside a Magnavox horn loudspeaker

    Amplified campaign address, Magnavox equipment, 1920

    A speaker at a flag-draped outdoor podium using an early microphone beside a Magnavox horn loudspeaker

    Author: Anonymous·Licence: Public domain·Type: photograph

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  • Two vintage coaxial loudspeakers, one facing forward and one showing its magnet and basket

    Duplex coaxial loudspeaker

    Two vintage coaxial loudspeakers, one facing forward and one showing its magnet and basket

    Author: Author unknown·Licence: CC0·Type: photograph

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  • Festival crowds on a hillside facing a stage and tall loudspeaker towers, 1969

    Sound towers above the festival crowd, 1969

    Festival crowds on a hillside facing a stage and tall loudspeaker towers, 1969

    Author: James M. Shelley·Licence: CC BY-SA 4.0·Type: photograph

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  • A wall of stacked amplifier and loudspeaker cabinets behind a stage with floor monitors

    Backline stack and floor monitors on stage

    A wall of stacked amplifier and loudspeaker cabinets behind a stage with floor monitors

    Author: Jaakonam·Licence: CC BY-SA 3.0·Type: photograph

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  • A flown line-array loudspeaker cluster suspended from overhead truss in stage lighting and haze

    Flown line-array cluster on truss

    A flown line-array loudspeaker cluster suspended from overhead truss in stage lighting and haze

    Author: Ville Hyvönen·Licence: CC BY-SA 2.0·Type: photograph

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  • A digital live-sound mixing console with faders, meters and hand-written channel tape

    Digital live-sound console at front of house

    A digital live-sound mixing console with faders, meters and hand-written channel tape

    Author: beeki·Licence: CC0·Type: photograph

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  • An outdoor festival stage at dusk with flown arrays, a subwoofer stack and road cases

    Festival PA deployed at dusk, 2018

    An outdoor festival stage at dusk with flown arrays, a subwoofer stack and road cases

    Author: Dietmar Rabich·Licence: CC BY-SA 4.0·Type: photograph

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  • An arena at the end of a concert: two flown curved line-array hangs either side of the stage, overhead lighting rigging, and a full audience below

    Arena line arrays and audience after the final song

    An arena at the end of a concert: two flown curved line-array hangs either side of the stage, overhead lighting rigging, and a full audience below

    Author: 深鸣·Licence: CC BY-SA 4.0·Type: photograph

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  • A large loudspeaker and subwoofer wall built on a riser on a lawn

    Loudspeaker wall on a festival riser

    A large loudspeaker and subwoofer wall built on a riser on a lawn

    Author: Kurt Snieckus·Licence: CC BY-SA 2.0·Type: photograph

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  • An elderly sound engineer seated on a stage speaking into a handheld microphone with wedges in front

    Bill Hanley at a 2024 screening of his biography

    An elderly sound engineer seated on a stage speaking into a handheld microphone with wedges in front

    Author: Not on display (Wikimedia Commons contributor)·Licence: CC0·Type: photograph

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  • EAW KF850 cabinets with SB1000 subwoofers at a live event

    EAW KF850 cabinets with SB1000 subwoofers at a live event

    EAW KF850 cabinets with SB1000 subwoofers at a live event

    Author: Kurt Snieckus·Licence: CC BY-SA 2.0·Type: photograph

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  • Restored RCA 44-BX ribbon microphone

    Restored RCA 44-BX ribbon microphone

    Restored RCA 44-BX ribbon microphone

    Author: Roadside Guitars·Licence: CC BY-SA 2.0·Type: photograph

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  • Shure SM57 Unidyne III microphone, circa 1984

    Shure SM57 Unidyne III microphone, circa 1984

    Shure SM57 Unidyne III microphone, circa 1984

    Author: Jud McCranie·Licence: CC BY-SA 4.0·Type: photograph

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  • DiGiCo SD7T theatre variant at Miss Saigon, February 2016

    DiGiCo SD7T theatre variant at Miss Saigon, February 2016

    DiGiCo SD7T theatre variant at Miss Saigon, February 2016

    Author: 97OllieB·Licence: CC BY-SA 4.0·Type: photograph

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  • DiGiCo SD7 digital console, July 2010

    DiGiCo SD7 digital console, July 2010

    DiGiCo SD7 digital console, July 2010

    Author: Duncan Underwood·Licence: CC BY 2.0·Type: photograph

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  • Shure 55S Unidyne at the Vintage Radio & Communications Museum

    Shure 55S Unidyne at the Vintage Radio & Communications Museum

    Shure 55S Unidyne at the Vintage Radio & Communications Museum

    Author: Ethan Long·Licence: CC BY-SA 2.0·Type: photograph

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  • Shure Unisphere 565 displayed at the Woodstock site museum

    Shure Unisphere 565 displayed at the Woodstock site museum

    Shure Unisphere 565 displayed at the Woodstock site museum

    Author: Jud McCranie·Licence: CC BY-SA 4.0·Type: photograph

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  • Shure SM58 cartridge with grille removed

    Shure SM58 cartridge with grille removed

    Shure SM58 cartridge with grille removed

    Author: Monoklon·Licence: CC BY 4.0·Type: photograph

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  • Micro Shure SM58.jpg

    Micro Shure SM58

    Micro Shure SM58.jpg

    Author: Nicolas Esposito from France·Licence: CC BY 2.0·Type: photograph

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  • Microphone (Shure SM58) (4900485245).jpg

    Microphone (Shure SM58) (4900485245)

    Microphone (Shure SM58) (4900485245).jpg

    Author: Marcel Grieder from Switzerland·Licence: CC BY 2.0·Type: photograph

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  • Portrait of a Shure SM58 Microphone (9632508732).jpg

    Portrait of a Shure SM58 Microphone (9632508732)

    Portrait of a Shure SM58 Microphone (9632508732).jpg

    Author: Christopher Sessums from Portland, US·Licence: CC BY-SA 2.0·Type: photograph

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  • Shure SM58 Microphone (47651498671).jpg

    Shure SM58 Microphone (47651498671)

    Shure SM58 Microphone (47651498671).jpg

    Author: bradjavernick·Licence: CC BY 2.0·Type: photograph

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  • Shure SM58 microphone with spherical grille

    Shure SM58 microphone

    Shure SM58 microphone with spherical grille

    Author: Iain Fergusson; derivative by Binksternet·Licence: CC BY 2.5·Type: photograph

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  • First Audion amplifier 1914

    First Audion amplifier 1914

    First Audion amplifier 1914

    Author: Lee De Forest·Licence: Public domain·Type: photograph

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  • Reis Phone

    Reis Phone

    Reis Phone

    Author: Science Museum Group·Licence: CC BY-SA 4.0·Type: photograph

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  • Poulsen's first arc converter

    Poulsen's first arc converter

    Poulsen's first arc converter

    Author: Valdemar Poulsen·Licence: Public domain·Type: photograph

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  • Fleming valve

    Fleming valve

    Fleming valve

    Author: Gerald F. J. Tyne·Licence: Public domain·Type: photograph

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  • LRS Valve

    LRS Valve

    LRS Valve

    Author: Drahtlos·Licence: CC BY-SA 4.0·Type: photograph

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  • Audion tube

    Audion tube

    Audion tube

    Author: Paul Thompson·Licence: Public domain·Type: photograph

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  • De Forest Audion

    De Forest Audion

    De Forest Audion

    Author: John Ambrose Fleming·Licence: Public domain·Type: photograph

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  • Marconi magnetic detector

    Marconi magnetic detector

    Marconi magnetic detector

    Author: Archie Frederick Collins·Licence: Public domain·Type: photograph

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  • Marconi Reisz microphone

    Marconi Reisz microphone

    Marconi Reisz microphone

    Author: Jan Kameníček·Licence: CC BY-SA 4.0·Type: photograph

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  • WEM PA columns and amplifier

    WEM PA columns and amplifier

    WEM PA columns and amplifier

    Author: 21st CENTURY GREENSTUFF·Licence: CC BY 3.0·Type: photograph

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  • Sennheiser MD 421 ks01

    Sennheiser MD 421 ks01

    Sennheiser MD 421 ks01

    Author: Kreuzschnabel·Licence: CC BY-SA 3.0·Type: photograph

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  • Sennheiser md421

    Sennheiser md421

    Sennheiser md421

    Author: PJ·Licence: CC BY-SA 3.0·Type: photograph

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  • Gates Sta-Level levelling amplifier in a rack

    Gates Sta-Level levelling amplifier in a rack

    Gates Sta-Level levelling amplifier in a rack

    Author: eyeliam·Licence: CC BY 4.0·Type: photograph

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  • Crown DC300A power amplifier, three views

    Crown DC300A power amplifier, three views

    Crown DC300A power amplifier, three views

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: photograph

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  • Dynamk3roger

    Dynamk3roger

    Dynamk3roger

    Author: Travpeter·Licence: Public domain·Type: photograph

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  • 1970 Marshall JMP 1968 Super P.A. 100W - Phase splitter and power supply stage (1999-06-10 13.17.38 by germanium)

    1970 Marshall JMP 1968 Super P.A. 100W - Phase splitter and power supply stage (1999-06-10 13.17.38 by germanium)

    1970 Marshall JMP 1968 Super P.A. 100W - Phase splitter and power supply stage (1999-06-10 13.17.38 by germanium)

    Author: germanium from Eichwalde, Germany·Licence: CC BY 2.0·Type: photograph

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  • Shure 55S Unidyne (later production of the Model 55 line)

    Shure 55S Unidyne (later production of the Model 55 line)

    Shure 55S Unidyne (later production of the Model 55 line)

    Author: Holger.Ellgaard·Licence: CC BY-SA 3.0·Type: photograph

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  • Lansing Iconic multicell horn speaker 1937

    Lansing Iconic multicell horn speaker 1937

    Lansing Iconic multicell horn speaker 1937

    Author: Lansing Manufacturing Co. (1937)·Licence: Public domain·Type: photograph

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  • Liquid transmitter. 10th of March, 1876. Replica

    Liquid transmitter. 10th of March, 1876. Replica

    Liquid transmitter. 10th of March, 1876. Replica

    Author: CodeName47km·Licence: CC BY-SA 4.0·Type: photograph

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  • Bell liquid telephone transmitter 1876

    Bell liquid telephone transmitter 1876

    Bell liquid telephone transmitter 1876

    Author: Floyd L. Darrow·Licence: Public domain·Type: photograph

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  • Western Electric Bullnose Candlestick Telephone (53993129386)

    Western Electric Bullnose Candlestick Telephone (53993129386)

    Western Electric Bullnose Candlestick Telephone (53993129386)

    Author: Ethan Long·Licence: CC BY-SA 2.0·Type: photograph

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  • EMG Mark Xb handmade gramophone, c 1934. (9660572765)

    EMG Mark Xb handmade gramophone, c 1934. (9660572765)

    EMG Mark Xb handmade gramophone, c 1934. (9660572765)

    Author: Science Museum London / Science and Society Picture Library·Licence: CC BY-SA 2.0·Type: photograph

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  • Schaffer-Vega Diversity System Unit

    Schaffer-Vega Diversity System Unit

    Schaffer-Vega Diversity System Unit

    Author: SoloDallas·Licence: CC BY-SA 3.0·Type: photograph

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  • L-Acoustics dV-DOSC line array

    L-Acoustics dV-DOSC line array

    L-Acoustics dV-DOSC line array

    Author: JPRoche·Licence: CC BY-SA 3.0·Type: photograph

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  • Yamaha PM1D V2 digital mixing console

    Yamaha PM1D V2 digital mixing console

    Yamaha PM1D V2 digital mixing console

    Author: Yamaha Corporation (via Wikimedia Commons)·Licence: GFDL·Type: photograph

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  • PM5D

    PM5D

    PM5D

    Author: Lokoz·Licence: CC BY 2.0·Type: photograph

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  • YAMAHA PM5D, Expomusic 2010

    YAMAHA PM5D, Expomusic 2010

    YAMAHA PM5D, Expomusic 2010

    Author: Tiago Cassol Schvarstzhaupt·Licence: CC BY 2.0·Type: photograph

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  • PM5D FOH world. Delta rehearsal @ Trackdown

    PM5D FOH world. Delta rehearsal @ Trackdown

    PM5D FOH world. Delta rehearsal @ Trackdown

    Author: Duncan Underwood·Licence: CC BY 2.0·Type: photograph

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  • Dolby Lake Processor in a touring rack

    Dolby Lake Processor in a touring rack

    Dolby Lake Processor in a touring rack

    Author: Tiago Cassol Schvarstzhaupt·Licence: CC BY 2.0·Type: photograph

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  • Lake Contour loudspeaker management units, and their touchscreen GUI

    Lake Contour loudspeaker management units, and their touchscreen GUI

    Lake Contour loudspeaker management units, and their touchscreen GUI

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: photograph

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  • Lake Contours and touchscreen laptop interface

    Lake Contours and touchscreen laptop interface

    Lake Contours and touchscreen laptop interface

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: photograph

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  • Fostex NetCIRA EtherSound interfaces

    Fostex NetCIRA EtherSound interfaces

    Fostex NetCIRA EtherSound interfaces

    Author: CLI·Licence: GFDL·Type: photograph

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  • Greg Price S6L

    Greg Price S6L

    Greg Price S6L

    Author: Basshag·Licence: CC BY-SA 4.0·Type: photograph

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  • DiGiCo Quantum 852 Digital Mixing Console 20250726120254

    DiGiCo Quantum 852 Digital Mixing Console 20250726120254

    DiGiCo Quantum 852 Digital Mixing Console 20250726120254

    Author: TurnOnTheNight·Licence: CC BY-SA 4.0·Type: photograph

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  • DiGiCo Quantum 852 Digital Mixing Console 20250726120322

    DiGiCo Quantum 852 Digital Mixing Console 20250726120322

    DiGiCo Quantum 852 Digital Mixing Console 20250726120322

    Author: TurnOnTheNight·Licence: CC BY-SA 4.0·Type: photograph

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  • DiGiCo D5 Live, Monitor World @ Hey Hey Its Saturday

    DiGiCo D5 Live, Monitor World @ Hey Hey Its Saturday

    DiGiCo D5 Live, Monitor World @ Hey Hey Its Saturday

    Author: Duncan Underwood·Licence: CC BY 2.0·Type: photograph

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  • Digidesign VENUE Profile (D-Show family) in use at a corporate event

    Digidesign VENUE Profile (D-Show family) in use at a corporate event

    Digidesign VENUE Profile (D-Show family) in use at a corporate event

    Author: Binksternet·Licence: Public domain·Type: photograph

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  • Soundcraft Vi6 monitor world. Delta rehearsal @ Trackdown

    Soundcraft Vi6 monitor world. Delta rehearsal @ Trackdown

    Soundcraft Vi6 monitor world. Delta rehearsal @ Trackdown

    Author: Duncan Underwood·Licence: CC BY 2.0·Type: photograph

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  • NEXO STM M28

    NEXO STM M28

    NEXO STM M28

    Author: MrSadist·Licence: CC BY-SA 4.0·Type: photograph

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  • Altec Lansing 515-8LF, a later version of the 515 woofer

    Altec Lansing 515-8LF, a later version of the 515 woofer

    Altec Lansing 515-8LF, a later version of the 515 woofer

    Author: Jacques from Cape Town, South Africa·Licence: CC BY 2.0·Type: photograph

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  • JBL Paragon

    JBL Paragon

    JBL Paragon

    Author: -[SOTN]-Magnum5150·Licence: CC BY-SA 2.0·Type: photograph

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  • Bose 901 on stand

    Bose 901 on stand

    Bose 901 on stand

    Author: Lambtron·Licence: CC BY-SA 4.0·Type: photograph

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  • The Woodstock sound towers, 1969

    The Woodstock sound towers, 1969

    The Woodstock sound towers, 1969

    Author: James M Shelley·Licence: CC BY-SA 4.0·Type: photograph

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  • Electro-Voice Model 664 (with Model 642) at the Museum of Making Music

    Electro-Voice Model 664 (with Model 642) at the Museum of Making Music

    Electro-Voice Model 664 (with Model 642) at the Museum of Making Music

    Author: doryfour·Licence: CC BY-SA 2.0·Type: photograph

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  • Mcintosh MC-2300 Front (cropped)

    Mcintosh MC-2300 Front (cropped)

    Mcintosh MC-2300 Front (cropped)

    Author: Awgrasso·Licence: CC BY-SA 4.0·Type: photograph

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  • L-Acoustics K2 array flown at the Letfest show, Crimean Embankment

    L-Acoustics K2 array flown at the Letfest show, Crimean Embankment

    L-Acoustics K2 array flown at the Letfest show, Crimean Embankment

    Author: Retired electrician·Licence: CC0·Type: photograph

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  • Carbon-button microphone capsule from a Western Electric telephone

    Carbon-button microphone capsule from a Western Electric telephone

    Carbon-button microphone capsule from a Western Electric telephone

    Author: Gerry Ashton·Licence: GFDL·Type: photograph

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  • Large outdoor horn loudspeaker for stadium and park use (1920s)

    Large outdoor horn loudspeaker for stadium and park use (1920s)

    Large outdoor horn loudspeaker for stadium and park use (1920s)

    Author: Unknown author Unknown author·Licence: Public domain·Type: photograph

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  • Crown DC300A, the revised DC-300 amplifier, three views

    Crown DC300A, the revised DC-300 amplifier, three views

    Crown DC300A, the revised DC-300 amplifier, three views

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: photograph

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  • JBL 075 ring-radiator tweeters

    JBL 075 ring-radiator tweeters

    JBL 075 ring-radiator tweeters

    Author: Jacques from Cape Town, South Africa·Licence: CC BY 2.0·Type: photograph

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  • Midas PRO X console at NAMM 2017

    Midas PRO X console at NAMM 2017

    Midas PRO X console at NAMM 2017

    Author: Jim J·Licence: Public domain·Type: photograph

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  • Crowd surrounds television at RCA exhibit at 1939 World's Fair, where RCA sound systems were deployed.

    Crowd surrounds television at RCA exhibit at 1939 World's Fair

    Crowd surrounds television at RCA exhibit at 1939 World's Fair, where RCA sound systems were deployed.

    Author: Unknown·Licence: Public domain·Type: photograph

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  • Two Altec 1567A mixer amplifiers racked at Savage Audio, alongside MXR outboard units

    Altec 1567A mixer amplifiers (rack-mounted pair)

    Two Altec 1567A mixer amplifiers racked at Savage Audio, alongside MXR outboard units

    Author: Jake Mohan·Licence: CC BY 2.0·Type: photograph

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  • Shure Vocal Master PA column speaker

    Shure Vocal Master PA speaker column

    Shure Vocal Master PA column speaker

    Author: Daniel Christensen·Licence: CC BY-SA 3.0·Type: photograph

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Drawings & documents

Schematics, patents & catalogues

  • Cutaway technical drawing of a coaxial loudspeaker showing horn, voice coils and magnet structure

    Cutaway of a coaxial duplex loudspeaker

    Cutaway technical drawing of a coaxial loudspeaker showing horn, voice coils and magnet structure

    Author: William Hayes·Licence: CC0·Type: diagram

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  • Elevation drawing of the Grateful Dead Wall of Sound showing stage, vocals, piano, bass and lead arrays

    Wall of Sound elevation drawing, 1974

    Elevation drawing of the Grateful Dead Wall of Sound showing stage, vocals, piano, bass and lead arrays

    Author: Ron Wickersham·Licence: CC BY-SA 4.0·Type: diagram

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  • Top-down diagram of a cardioid subwoofer array between stage and audience

    Cardioid subwoofer array layout

    Top-down diagram of a cardioid subwoofer array between stage and audience

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: diagram

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  • Cross-sectional diagram of a compression driver with phase plug coupled to an acoustic horn

    Compression driver and horn, section view

    Cross-sectional diagram of a compression driver with phase plug coupled to an acoustic horn

    Author: Binksternet·Licence: CC BY-SA 3.0·Type: diagram

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  • US patent 1,038,910 (1912): relay for undulatory currents (Lieben–Reisz valve)

    US patent 1,038,910 (1912): relay for undulatory currents (Lieben–Reisz valve)

    US patent 1,038,910 (1912): relay for undulatory currents (Lieben–Reisz valve)

    Author: Robert von Lieben·Licence: Public domain (US patent)·Type: patent

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  • The original Williamson amplifier schematic (1947)

    The original Williamson amplifier schematic (1947)

    The original Williamson amplifier schematic (1947)

    Author: Retired electrician·Licence: Public domain·Type: diagram

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  • US patent 2,237,298 (1941): Uniphase single-element cardioid microphone

    US patent 2,237,298 (1941): Uniphase single-element cardioid microphone

    US patent 2,237,298 (1941): Uniphase single-element cardioid microphone

    Author: Benjamin Baumzweiger/Bauer (assigned to S. N. Shure)·Licence: Public domain (US patent)·Type: patent

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  • US patent 174,465 (1876): improvement in telegraphy

    US patent 174,465 (1876): improvement in telegraphy

    US patent 174,465 (1876): improvement in telegraphy

    Author: Alexander Graham Bell·Licence: Public domain (US patent)·Type: patent

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  • PSM V70 D409 Blake telephone transmitter

    PSM V70 D409 Blake telephone transmitter

    PSM V70 D409 Blake telephone transmitter

    Author: Popular Science Monthly, vol. 70 (1907)·Licence: Public domain·Type: catalogue

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  • US patent 250,126 (1881): speaking-telephone (Blake transmitter)

    US patent 250,126 (1881): speaking-telephone (Blake transmitter)

    US patent 250,126 (1881): speaking-telephone (Blake transmitter)

    Author: Francis Blake·Licence: Public domain (US patent)·Type: patent

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  • Cutaway drawing of a carbon-button transmitter (Van Deventer, 1910s)

    Cutaway drawing of a carbon-button transmitter (Van Deventer, 1910s)

    Cutaway drawing of a carbon-button transmitter (Van Deventer, 1910s)

    Author: H. R. Van Deventer·Licence: Public domain·Type: diagram

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  • US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    Author: Thomas A. Edison·Licence: Public domain (US patent)·Type: patent

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  • US patent 3,582,553 (1971): direct/reflecting loudspeaker system

    US patent 3,582,553 (1971): direct/reflecting loudspeaker system

    US patent 3,582,553 (1971): direct/reflecting loudspeaker system

    Author: Amar G. Bose·Licence: Public domain (US patent)·Type: patent

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  • "RCA Photophone" ad in The Film Daily, Jan-Jun 1929 (page 1313 crop)

    "RCA Photophone" ad in The Film Daily, Jan-Jun 1929 (page 1313 crop)

    "RCA Photophone" ad in The Film Daily, Jan-Jun 1929 (page 1313 crop)

    Author: RCA Photophone, Inc. (The Film Daily, 1929)·Licence: Public domain·Type: catalogue

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  • Jensen ad for Alnico 5 speakers

    Jensen ad for Alnico 5 speakers

    Jensen ad for Alnico 5 speakers

    Author: Jensen Radio Manufacturing Co. (1945 advertisement)·Licence: Public domain·Type: catalogue

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  • US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    US patent 203,016 (1878): speaking-telephone (carbon transmitter)

    Author: Thomas A. Edison·Licence: Public domain (US patent)·Type: patent

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  • US patent 1,448,279 (1923): electrodynamic receiver

    US patent 1,448,279 (1923): electrodynamic receiver

    US patent 1,448,279 (1923): electrodynamic receiver

    Author: Edwin S. Pridham & Peter L. Jensen·Licence: Public domain (US patent)·Type: patent

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  • US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    Author: Edwin S. Pridham & Peter L. Jensen·Licence: Public domain (US patent)·Type: patent

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  • US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    US patent 1,448,279 (1923): electrodynamic receiver, the Magnavox moving-coil driver

    Author: Edwin S. Pridham & Peter L. Jensen·Licence: Public domain (US patent)·Type: patent

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  • US patent 463,569 (1891): loose-contact telephone transmitter

    US patent 463,569 (1891): loose-contact telephone transmitter

    US patent 463,569 (1891): loose-contact telephone transmitter

    Author: Emile Berliner·Licence: Public domain (US patent)·Type: patent

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  • US patent 246,512 (1881): granulated-carbon transmitter

    US patent 246,512 (1881): granulated-carbon transmitter

    US patent 246,512 (1881): granulated-carbon transmitter

    Author: Henry Hunnings·Licence: Public domain (US patent)·Type: patent

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  • US patent 186,787 (1877): magnetic telephone receiver

    US patent 186,787 (1877): magnetic telephone receiver

    US patent 186,787 (1877): magnetic telephone receiver

    Author: Alexander Graham Bell·Licence: Public domain (US patent)·Type: patent

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  • US patent 609,154 (1898): moving-coil apparatus

    US patent 609,154 (1898): moving-coil apparatus

    US patent 609,154 (1898): moving-coil apparatus

    Author: Oliver J. Lodge·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 1,707,545 (1929): acoustic device, the compression-driver design used in the 555

    US patent 1,707,545 (1929): acoustic device, the compression-driver design used in the 555

    US patent 1,707,545 (1929): acoustic device, the compression-driver design used in the 555

    Author: Edward C. Wente (Bell Telephone Laboratories)·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 2,037,187 (1936): sound translating device, the compression-driver design of the 594-A era

    US patent 2,037,187 (1936): sound translating device, the compression-driver design of the 594-A era

    US patent 2,037,187 (1936): sound translating device, the compression-driver design of the 594-A era

    Author: Edward C. Wente (Bell Telephone Laboratories)·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 3,132,713 (1964): microphone diaphragm (Unidyne III)

    US patent 3,132,713 (1964): microphone diaphragm (Unidyne III)

    US patent 3,132,713 (1964): microphone diaphragm (Unidyne III)

    Author: Charles E. Seeler (Shure Brothers)·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 5,163,167 (1992): sound wave guide (DOSC waveguide)

    US patent 5,163,167 (1992): sound wave guide (DOSC waveguide)

    US patent 5,163,167 (1992): sound wave guide (DOSC waveguide)

    Author: Christian Heil·Licence: Public domain (US patent)·Type: patent

    View the original file
  • Théâtrophone listening arrangement, Paris Electrical Exhibition 1881

    Théâtrophone listening arrangement, Paris Electrical Exhibition 1881

    Théâtrophone listening arrangement, Paris Electrical Exhibition 1881

    Author: Clément Ader (1841-1926)·Licence: Public domain·Type: diagram

    View the original file
  • Dante audio networking logo

    Dante audio networking logo

    Dante audio networking logo

    Author: Audinate Pty, Ltd.·Licence: Public domain·Type: screenshot

    View the original file
  • CobraNet logo

    CobraNet logo

    CobraNet logo

    Author: CobraNet·Licence: Public domain·Type: screenshot

    View the original file
  • US patent 957,403 (1910): telephone receiver

    US patent 957,403 (1910): telephone receiver

    US patent 957,403 (1910): telephone receiver

    Author: Nathaniel Baldwin·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 927,230 (1909): Dictograph

    US patent 927,230 (1909): Dictograph

    US patent 927,230 (1909): Dictograph

    Author: William F. H. Germer·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 677,476 (1901): sound-increasing device, the compressed-air amplifier later developed as the Auxetophone

    US patent 677,476 (1901): sound-increasing device, the compressed-air amplifier later developed as the Auxetophone

    US patent 677,476 (1901): sound-increasing device, the compressed-air amplifier later developed as the Auxetophone

    Author: Horace L. Short·Licence: Public domain (US patent)·Type: patent

    View the original file
  • US patent 1,869,178 (1932): moving-coil sound translating device of the 618A era

    US patent 1,869,178 (1932): moving-coil sound translating device of the 618A era

    US patent 1,869,178 (1932): moving-coil sound translating device of the 618A era

    Author: Albert L. Thuras (Bell Telephone Laboratories)·Licence: Public domain (US patent)·Type: patent

    View the original file
  • 1918 advertisement for the Automatic Enunciator public address system

    The Big Voice

    1918 advertisement for the Automatic Enunciator public address system

    Author: Automatic Electric Company·Licence: Public domain·Type: catalogue

    View the original file
  • Patent drawing for the Western Electric No. 555 receiver used with the 13-A horn

    Acoustic Device Patent Drawing

    Patent drawing for the Western Electric No. 555 receiver used with the 13-A horn

    Author: Edward C. Wente·Licence: Public domain·Type: patent

    View the original file

Manufacturer material

Product images & manual pages

These images remain the copyright of the named manufacturers. They are shown, credited and linked to their source, only to identify each product in a historical context. Rights holders can request removal through the Contribute page.

  • EAW Anya official product photograph

    EAW Anya — manufacturer photograph

    EAW Anya official product photograph

    Author: Eastern Acoustic Works (EAW)·Licence: © Eastern Acoustic Works (EAW); used for identification and historical commentary·Type: photograph

    View the original file
  • EAW Anna official product photograph

    EAW Anna — manufacturer photograph

    EAW Anna official product photograph

    Author: Eastern Acoustic Works (EAW)·Licence: © Eastern Acoustic Works (EAW); used for identification and historical commentary·Type: photograph

    View the original file
  • Holoplot X1 Modul 96 (MD96) official technical drawing

    Holoplot X1 Modul 96 (MD96) — manufacturer technical drawing

    Holoplot X1 Modul 96 (MD96) official technical drawing

    Author: HOLOPLOT GmbH·Licence: © HOLOPLOT GmbH; used for identification and historical commentary·Type: diagram

    View the original file
  • Holoplot X1 Modul 80-S (MD80-S) official technical drawing

    Holoplot X1 Modul 80-S (MD80-S) — manufacturer technical drawing

    Holoplot X1 Modul 80-S (MD80-S) official technical drawing

    Author: HOLOPLOT GmbH·Licence: © HOLOPLOT GmbH; used for identification and historical commentary·Type: diagram

    View the original file
  • Soundcraft Series FOUR console official product photograph

    Soundcraft Series FOUR console — manufacturer photograph

    Soundcraft Series FOUR console official product photograph

    Author: Soundcraft / HARMAN International·Licence: © Soundcraft / HARMAN International; used for identification and historical commentary·Type: photograph

    View the original file
  • Wisycom MTK952 wideband dual IEM transmitter, official product photograph

    Wisycom MTK952 wideband dual IEM transmitter, official product photograph

    Wisycom MTK952 wideband dual IEM transmitter, official product photograph

    Author: Wisycom·Licence: © Wisycom; used for identification and historical commentary·Type: photograph

    View the original file
  • JBL D30085 Hartsfield corner-horn system, circa 1957

    JBL D30085 Hartsfield corner-horn system, circa 1957

    JBL D30085 Hartsfield corner-horn system, circa 1957

    Author: Harman International, courtesy Mark Gander and John Eargle·Licence: © Harman International; used for identification and historical commentary·Type: photograph

    View the original file
  • Lansing Manufacturing Shearer Horn two-way theatre system

    Lansing Manufacturing Shearer Horn two-way theatre system

    Lansing Manufacturing Shearer Horn two-way theatre system

    Author: Harman International; courtesy Mark Gander and John Eargle·Licence: © Harman International / Lansing Heritage archive; used for identification and historical commentary·Type: photograph

    View the original file
  • Altec Voice of the Theatre catalogue family photograph — A4, A2, A5 and A8 variants, circa 1978

    Altec Voice of the Theatre catalogue family photograph — A4, A2, A5 and A8 variants, circa 1978

    Altec Voice of the Theatre catalogue family photograph — A4, A2, A5 and A8 variants, circa 1978

    Author: Altec Lansing Technology, courtesy Paul Barello·Licence: © Altec Lansing Technology; used for identification and historical commentary·Type: photograph

    View the original file
  • Altec Lansing 288B high-frequency compression driver literature photo

    Altec Lansing 288B high-frequency compression driver literature photo

    Altec Lansing 288B high-frequency compression driver literature photo

    Author: Altec Lansing Corporation·Licence: © Altec Lansing; used for identification and historical commentary·Type: photograph

    View the original file
  • Midas PR40 console system, 1980

    Midas PR40 console system, 1980

    Midas PR40 console system, 1980

    Author: Theatrecrafts Backstage Heritage Collection; photographer unrecorded·Licence: Archival photograph; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Yamaha PM1000-16 mixing console

    Yamaha PM1000-16 mixing console

    Yamaha PM1000-16 mixing console

    Author: Yamaha Corporation·Licence: © Yamaha Corporation; used for identification and historical commentary·Type: photograph

    View the original file
  • Electro-Voice HR9040 constant-directivity horn

    Electro-Voice HR9040 constant-directivity horn

    Electro-Voice HR9040 constant-directivity horn

    Author: Electro-Voice·Licence: © Electro-Voice; used for identification and historical commentary·Type: photograph

    View the original file
  • JBL 4682 enclosure

    JBL 4682 enclosure

    JBL 4682 enclosure

    Author: JBL Professional·Licence: © JBL Professional; used for identification and historical commentary·Type: photograph

    View the original file
  • Electro-Voice MT-4 system in a 1987 advertisement

    Electro-Voice MT-4 system in a 1987 advertisement

    Electro-Voice MT-4 system in a 1987 advertisement

    Author: Electro-Voice·Licence: © Electro-Voice; used for identification and historical commentary·Type: catalogue

    View the original file
  • Martin Audio Modular PA system, period catalogue

    Martin Audio Modular PA system, period catalogue

    Martin Audio Modular PA system, period catalogue

    Author: Martin Audio·Licence: © Martin Audio; used for identification and historical commentary·Type: catalogue

    View the original file
  • Martin Audio MH212 Philishave midrange horn, period catalogue

    Martin Audio MH212 Philishave midrange horn, period catalogue

    Martin Audio MH212 Philishave midrange horn, period catalogue

    Author: Martin Audio·Licence: © Martin Audio; used for identification and historical commentary·Type: catalogue

    View the original file
  • JBL 4850 Concert Series family, 1986 brochure

    JBL 4850 Concert Series family, 1986 brochure

    JBL 4850 Concert Series family, 1986 brochure

    Author: JBL Professional·Licence: © JBL Professional; used for identification and historical commentary·Type: manual

    View the original file
  • EAW BH882iP bass horn — later iP variant, manufacturer datasheet

    EAW BH882iP bass horn — later iP variant, manufacturer datasheet

    EAW BH882iP bass horn — later iP variant, manufacturer datasheet

    Author: Eastern Acoustic Works·Licence: © Eastern Acoustic Works; used for identification and historical commentary·Type: manual

    View the original file
  • Lab.gruppen LAB 2000C — C variant, front and rear panel drawings

    Lab.gruppen LAB 2000C — C variant, front and rear panel drawings

    Lab.gruppen LAB 2000C — C variant, front and rear panel drawings

    Author: Lab.gruppen·Licence: © Lab.gruppen; used for identification and historical commentary·Type: manual

    View the original file
  • Yamaha PM3000 AUX return modules — manufacturer manual drawing

    Yamaha PM3000 AUX return modules — manufacturer manual drawing

    Yamaha PM3000 AUX return modules — manufacturer manual drawing

    Author: Yamaha Corporation·Licence: © Yamaha Corporation; used for identification and historical commentary·Type: manual

    View the original file
  • Crown Macro-Tech MA-5002VZ amplifier, service manual

    Crown Macro-Tech MA-5002VZ amplifier, service manual

    Crown Macro-Tech MA-5002VZ amplifier, service manual

    Author: Crown International·Licence: © Crown International; used for identification and historical commentary·Type: manual

    View the original file
  • Meyer Sound MSL-3 Reinforcement Loudspeaker

    Meyer Sound MSL-3 Reinforcement Loudspeaker

    Meyer Sound MSL-3 Reinforcement Loudspeaker

    Author: CUE Sale·Licence: © CUE Sale; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound MSL-3A — later A variant, manufacturer product photograph

    Meyer Sound MSL-3A — later A variant, manufacturer product photograph

    Meyer Sound MSL-3A — later A variant, manufacturer product photograph

    Author: Meyer Sound Laboratories·Licence: © Meyer Sound; used for identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound MSL-3 — additional cabinet view 1

    Meyer Sound MSL-3 — additional cabinet view 1

    Meyer Sound MSL-3 — additional cabinet view 1

    Author: CUE Sale·Licence: © CUE Sale; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound MSL-3 — additional cabinet view 2

    Meyer Sound MSL-3 — additional cabinet view 2

    Meyer Sound MSL-3 — additional cabinet view 2

    Author: CUE Sale·Licence: © CUE Sale; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound MSL-3 — additional cabinet view 3

    Meyer Sound MSL-3 — additional cabinet view 3

    Meyer Sound MSL-3 — additional cabinet view 3

    Author: CUE Sale·Licence: © CUE Sale; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1 — cabinet detail 1

    Meyer Sound USW-1 — cabinet detail 1

    Meyer Sound USW-1 — cabinet detail 1

    Author: AVGear·Licence: © AVGear; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1 — cabinet detail 2

    Meyer Sound USW-1 — cabinet detail 2

    Meyer Sound USW-1 — cabinet detail 2

    Author: AVGear·Licence: © AVGear; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1 — cabinet detail 3

    Meyer Sound USW-1 — cabinet detail 3

    Meyer Sound USW-1 — cabinet detail 3

    Author: AVGear·Licence: © AVGear; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1 — cabinet detail 4

    Meyer Sound USW-1 — cabinet detail 4

    Meyer Sound USW-1 — cabinet detail 4

    Author: AVGear·Licence: © AVGear; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1 UltraSeries Subwoofer

    Meyer Sound USW-1 UltraSeries Subwoofer

    Meyer Sound USW-1 UltraSeries Subwoofer

    Author: AVGear·Licence: © AVGear; used for equipment identification and historical commentary·Type: photograph

    View the original file
  • Meyer Sound USW-1P — later self-powered P variant, manufacturer datasheet

    Meyer Sound USW-1P — later self-powered P variant, manufacturer datasheet

    Meyer Sound USW-1P — later self-powered P variant, manufacturer datasheet

    Author: Meyer Sound Laboratories·Licence: © Meyer Sound; used for identification and historical commentary·Type: manual

    View the original file
  • Clair S4 Series II — front with grille removed

    Clair S4 Series II — front with grille removed

    Clair S4 Series II — front with grille removed

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • Clair S4 Series II — drivers and horn

    Clair S4 Series II — drivers and horn

    Clair S4 Series II — drivers and horn

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • Clair S4 Series II — rear cabinet

    Clair S4 Series II — rear cabinet

    Clair S4 Series II — rear cabinet

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • Clair S4 Series II — side cabinet

    Clair S4 Series II — side cabinet

    Clair S4 Series II — side cabinet

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • Clair S4 Series II — front grille

    Clair S4 Series II — front grille

    Clair S4 Series II — front grille

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • Clair S4 Series II — connector detail

    Clair S4 Series II — connector detail

    Clair S4 Series II — connector detail

    Author: Clair Global / CLAIR Used Gear·Licence: © Clair Global; used for identification and historical commentary·Type: photograph

    View the original file
  • PM1D digital mixing system

    PM1D digital mixing system

    PM1D digital mixing system

    Author: Yamaha·Licence: © Yamaha, used for identification and historical commentary·Type: photograph

    View the original file
  • PM5D digital mixing console

    PM5D digital mixing console

    PM5D digital mixing console

    Author: Yamaha·Licence: © Yamaha, used for identification and historical commentary·Type: photograph

    View the original file
  • K2 variable-curvature line source array

    K2 variable-curvature line source array

    K2 variable-curvature line source array

    Author: L-Acoustics·Licence: © L-Acoustics, used for identification and historical commentary·Type: photograph

    View the original file
  • K1 line source array with K1-BUMP

    K1 line source array with K1-BUMP

    K1 line source array with K1-BUMP

    Author: L-Acoustics·Licence: © L-Acoustics, used for identification and historical commentary·Type: photograph

    View the original file
  • KARA II modular line source array

    KARA II modular line source array

    KARA II modular line source array

    Author: L-Acoustics·Licence: © L-Acoustics, used for identification and historical commentary·Type: photograph

    View the original file
  • L-ISA Processor II

    L-ISA Processor II

    L-ISA Processor II

    Author: L-Acoustics·Licence: © L-Acoustics, used for identification and historical commentary·Type: photograph

    View the original file
  • PANTHER linear line array loudspeaker

    PANTHER linear line array loudspeaker

    PANTHER linear line array loudspeaker

    Author: Meyer Sound·Licence: © Meyer Sound, used for identification and historical commentary·Type: photograph

    View the original file
  • TiMax SoundHub spatial audio processor

    TiMax SoundHub spatial audio processor

    TiMax SoundHub spatial audio processor

    Author: TiMax / Out Board·Licence: © TiMax / Out Board, used for identification and historical commentary·Type: photograph

    View the original file
  • AFC Image spatial sound control

    AFC Image spatial sound control

    AFC Image spatial sound control

    Author: Yamaha·Licence: © Yamaha, used for identification and historical commentary·Type: screenshot

    View the original file
  • QLab 5 (object audio)

    QLab 5 (object audio)

    QLab 5 (object audio)

    Author: Figure 53·Licence: © Figure 53, used for identification and historical commentary·Type: screenshot

    View the original file
  • SPAT Revolution immersive engine interface

    SPAT Revolution immersive engine interface

    SPAT Revolution immersive engine interface

    Author: FLUX:: Immersive·Licence: © FLUX:: Immersive, used for identification and historical commentary·Type: screenshot

    View the original file
  • CL Series digital consoles (CL5 shown in the range)

    CL Series digital consoles (CL5 shown in the range)

    CL Series digital consoles (CL5 shown in the range)

    Author: Yamaha·Licence: © Yamaha, used for identification and historical commentary·Type: photograph

    View the original file
  • mc²96 production console

    mc²96 production console

    mc²96 production console

    Author: Lawo·Licence: © Lawo, used for identification and historical commentary·Type: photograph

    View the original file
  • PRODIGY.MP multifunction audio processor

    PRODIGY.MP multifunction audio processor

    PRODIGY.MP multifunction audio processor

    Author: DirectOut·Licence: © DirectOut, used for identification and historical commentary·Type: photograph

    View the original file
  • Live L650 console

    Live L650 console

    Live L650 console

    Author: Solid State Logic·Licence: © Solid State Logic, used for identification and historical commentary·Type: photograph

    View the original file
  • RIVAGE PM digital mixing system

    RIVAGE PM digital mixing system

    RIVAGE PM digital mixing system

    Author: Yamaha·Licence: © Yamaha, used for identification and historical commentary·Type: photograph

    View the original file
  • L-Acoustics system managed with LA Network Manager (Houston Rodeo)

    L-Acoustics system managed with LA Network Manager (Houston Rodeo)

    L-Acoustics system managed with LA Network Manager (Houston Rodeo)

    Author: L-Acoustics·Licence: © L-Acoustics, used for identification and historical commentary·Type: screenshot

    View the original file
  • SIM II measurement system

    SIM II measurement system

    SIM II measurement system

    Author: Meyer Sound·Licence: © Meyer Sound, used for identification and historical commentary·Type: photograph

    View the original file
  • NADIA processing platform

    NADIA processing platform

    NADIA processing platform

    Author: Meyer Sound·Licence: © Meyer Sound, used for identification and historical commentary·Type: photograph

    View the original file
  • J8 line array loudspeaker

    J8 line array loudspeaker

    J8 line array loudspeaker

    Author: d&b audiotechnik·Licence: © d&b audiotechnik, used for identification and historical commentary·Type: photograph

    View the original file
  • KSL8 line array loudspeaker

    KSL8 line array loudspeaker

    KSL8 line array loudspeaker

    Author: d&b audiotechnik·Licence: © d&b audiotechnik, used for identification and historical commentary·Type: photograph

    View the original file
  • GSL8 line array loudspeaker

    GSL8 line array loudspeaker

    GSL8 line array loudspeaker

    Author: d&b audiotechnik·Licence: © d&b audiotechnik, used for identification and historical commentary·Type: photograph

    View the original file
  • VTX V25 line array element

    VTX V25 line array element

    VTX V25 line array element

    Author: JBL Professional (HARMAN)·Licence: © JBL Professional (HARMAN), used for identification and historical commentary·Type: photograph

    View the original file
  • X Series touring amplifier platform

    X Series touring amplifier platform

    X Series touring amplifier platform

    Author: Powersoft·Licence: © Powersoft, used for identification and historical commentary·Type: photograph

    View the original file
  • SARA II rendering engine

    SARA II rendering engine

    SARA II rendering engine

    Author: Astro Spatial Audio·Licence: © Astro Spatial Audio, used for identification and historical commentary·Type: photograph

    View the original file
  • Spatial Audio Designer

    Spatial Audio Designer

    Spatial Audio Designer

    Author: New Audio Technology·Licence: © New Audio Technology, used for identification and historical commentary·Type: screenshot

    View the original file
  • Stagetracker II performer tracking

    Stagetracker II performer tracking

    Stagetracker II performer tracking

    Author: TTA / Martin Audio·Licence: © TTA / Martin Audio, used for identification and historical commentary·Type: photograph

    View the original file
  • Argo console family

    Argo console family

    Argo console family

    Author: Calrec Audio·Licence: © Calrec Audio, used for identification and historical commentary·Type: photograph

    View the original file
  • Smaart logo

    Smaart logo

    Smaart logo

    Author: Rational Acoustics·Licence: © Rational Acoustics, used for identification and historical commentary·Type: screenshot

    View the original file
  • RAVENNA logo

    RAVENNA logo

    RAVENNA logo

    Author: ALC NetworX·Licence: © ALC NetworX, used for identification and historical commentary·Type: screenshot

    View the original file
  • Turbosound TMS-3 three-way enclosure

    Turbosound TMS-3 three-way enclosure

    Turbosound TMS-3 three-way enclosure

    Author: Warehouse Sound Services·Licence: © Warehouse Sound Services, used for identification and historical commentary·Type: photograph

    View the original file
  • AES logo (publisher of AES67)

    AES logo (publisher of AES67)

    AES logo (publisher of AES67)

    Author: Audio Engineering Society·Licence: © Audio Engineering Society, used for identification and historical commentary·Type: screenshot

    View the original file
  • d&b DS100 Signal Engine (predecessor platform of the DS110 line)

    d&b DS100 Signal Engine (predecessor platform of the DS110 line)

    d&b DS100 Signal Engine (predecessor platform of the DS110 line)

    Author: d&b audiotechnik·Licence: © d&b audiotechnik, used for identification and historical commentary·Type: photograph

    View the original file
  • Shure Axient Digital receiver and transmitters

    Shure Axient Digital receiver and transmitters

    Shure Axient Digital receiver and transmitters

    Author: Shure·Licence: © Shure, used for identification and historical commentary·Type: photograph

    View the original file
  • d&b DS100 Signal Engine, the processor at the core of Soundscape

    d&b DS100 Signal Engine, the processor at the core of Soundscape

    d&b DS100 Signal Engine, the processor at the core of Soundscape

    Author: d&b audiotechnik·Licence: © d&b audiotechnik, used for identification and historical commentary·Type: photograph

    View the original file
  • Original flyer for JBL D130 loudspeaker, circa 1948.

    JBL D130 Original Flyer

    Original flyer for JBL D130 loudspeaker, circa 1948.

    Author: James B. Lansing Sound Inc.·Licence: © Maker·Type: catalogue

    View the original file
  • Altec Lansing Voice of the Theatre A2 system lineup.

    Altec Voice of the Theatre Systems Circa 1978

    Altec Lansing Voice of the Theatre A2 system lineup.

    Author: Altec Lansing·Licence: © Altec Lansing·Type: catalogue

    View the original file
  • Sennheiser Digital 6000 wireless microphone system.

    Sennheiser Digital 6000

    Sennheiser Digital 6000 wireless microphone system.

    Author: Sennheiser·Licence: © Sennheiser·Type: photograph

    View the original file

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