Alexander Graham Bell invented the first loudspeaker in 1876
http://simple.wikipedia.org/wiki/Loudspeaker
In 1877, German, Ernst Siemens patented the first loudspeaker on Dec. 14, 1877. Englishmen, Sir Oliver Lodge received the second patent for a loudspeaker on April 27, 1898. This was all before music was electrified. ... In 1958, the first box-enclosed loudspeakers were invented by the Cabesse, a French company.
inventors.about.com/library/inventors/blloudspeaker.htm inventors.about.com/library/inventors/blloudspeaker.htm
Loudspeaker - Wikipedia, the free encyclopedia
A loudspeaker (or "speaker") is an electroacoustic transducer that converts an electrical signal into sound. The speaker pulses in accordance with the variations of an electrical signal and causes s...
en.wikipedia.org/wiki/Loudspeaker
1911 - Edwin S. Pridham and Peter L. Jensen in Napa, California, invented a moving-coil loudspeaker they called the "Magnavox" that was used by Woodrow Wilson in San Diego in 1919.
history.sandiego.edu/GEN/recording/loudspeaker.html history.sandiego.edu/GEN/recording/loudspeaker.html
Many people would like the credits. They are probably all dead by today, but you never know for sure. If you ask an american, then it was an american who invented the electrodynamic loudspeaker. If you ask a dane, then it was a dane who inv...
http://home1.stofanet.dk/cfuttrup/dpc/inventor.htm#who
Engineered for the serious pro audio user, the U15 offers a radical loudspeaker cabinet design utilizing the patented Unity™ Summation Aperture Horn Technology, which was invented by loudspeaker ... No self-interference between individual loudspeaker components.
www.fullcompass.com/product/350254.html
Answers to questions about Nikola Tesla (1856-1943). ... Did Tesla really invent the loudspeaker?; While I've seen nothing to indicate that Tesla invented the modern-day loudspeaker as we know it, the book Prodigal Genius by John J. O'Neill contains two passages that might lead one to believe otherwise.
www.tfcbooks.com/teslafaq/q&a_040.htm
8 driver dj loudspeaker loudspeaker connector panels tandberg loudspeaker system 20 moving coil loudspeaker mini loudspeaker ; ... 10 inch full range loudspeaker ;
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The Yorkville U15 professional loudspeaker for sale in the UK at £899 ... The U15 is a radical loudspeaker cabinet design utilizing the patented Unity™ Summation Aperture Horn Technology, which was invented by loudspeaker designer Tom Danley and licensed from Sound Physics Labs Inc.
www.ssal.co.uk/u15.htm
School Subjects question: Who invented loud speaker? Alexander Graham Bell ... Who was invented the loud speaker? When was the loud speaker invented? Who invented the first loud speaker? How loud can a speaker be before its illegal? Who invented the loud speaker and how old where they?
wiki.answers.com/Q/Who_invented_loud_speaker wiki.answers.com/Q/Who_invented_loud_speaker