In 1877, German, Ernst Siemens pate

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 1924, two General Electric researchers, Chester W. Rice and Edward Washburn Kellogg patented the modern, moving coil, direct radiator, loudspeaker, which become the prominent design for all loudspeakers The Rice and Kellogg loudspeakers were sold to consumers under the name of "Radiola'' loudspeakers beginning in 1926, and were superior to anything previously invented by lowering sound distortion and raising audio quality for the consumer.

In 1958, the first box-enclosed loudspeakers were invented by the Cabesse, a French company.

ผลลัพธ์ (อังกฤษ) 2:

In 1 877, German, Ernst Siemens Patented the First Loudspeaker on Dec. 14, 1877. Englishmen, Sir Oliver Lodge received the second for a Patent Loudspeaker on April 27, 1898. This was before all was Music electrified.

In 1,924, Two General Electric. researchers, Chester W. Rice and Edward Washburn Kellogg patented the modern, moving coil, direct radiator, loudspeaker, which become the prominent design for all loudspeakers The Rice and Kellogg loudspeakers were sold to consumers under the name of "Radiola '' loudspeakers beginning in. one thousand nine hundred twenty-six, and Superior to anything previously were invented by lowering distortion and Raising Sound audio quality for the Consumer.

In one thousand nine hundred and fifty-eight, the First-enclosed box loudspeakers were invented by the Cabesse, a French Company.