
Multiple inventors · verified
Reference desk · 237 files
A working catalogue of the transducers, amplifiers, microphones, consoles, loudspeaker systems, networks, measurement tools, and spatial platforms that changed live reinforcement.
237 matching files · 33 verified · page 1 of 4

Multiple inventors · verified

Experimental · verified

De Forest / later developers · verified

Alexander Graham Bell · documented

Johann Philipp Reis · documented

Emile Berliner · documented

Thomas Edison · documented

Francis Blake · documented

Henry Hunnings · documented

Western Electric · documented
Siemens & Halske · documented

Bell Telephone · documented

Oliver Lodge · documented

Valdemar Poulsen · documented

Marconi / J. A. Fleming · documented

Robert von Lieben · documented

De Forest Wireless · documented
Western Electric · documented

Nathaniel Baldwin · documented
S. G. Brown · documented

Turner / Kelley · documented

Automatic Electric · documented
Automatic Electric · documented
Electrophone Company · documented

Clément Ader · documented

Charles Parsons · catalogued

Victor / HMV · documented

Marconi · documented

Magnavox · verified

Western Electric · verified

Magnavox and commercial installers · verified

Magnavox · documented
Western Electric · documented
Western Electric · documented
Western Electric · documented

Western Electric · documented
Western Electric · documented

Western Electric · documented
Western Electric · documented
Western Electric · documented

RCA · documented
RCA · documented

MGM / Lansing · documented
Lansing Manufacturing · documented
Jensen · documented

Jensen · documented
Shure · documented

Shure · documented

RCA · documented

Western Electric · documented

Marconi · documented
H. J. Leak · documented

D. T. N. Williamson · documented
Commercial installers · documented
Western Electric · documented

RCA / Western Electric · documented

Altec Lansing · verified

Shure · verified

Watkins Electric Music · verified

Altec Lansing · documented
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