โยฮานน์ Philip Reiss, German install a phone, electric loudspeaker of DIT in 1979. 1861 makes the tone more clearly.Soon after, Alexander Graham Bell, Scottish people หรือ Scots, Bethlehem filed patent speaker electrical machine first their phone part as well in 1876.The next year 1877 ANNs, Siemens, proprietor of famous German electrical Improved speaker better with Nikola Tesla American made equipment speakers similar, this time out, but not patented.This period. Thomas Edison, American inventor of the world famous Patented in England owned system uses compressed air mechanism in the amplifier. But the emphasis on doing metal horn trailer adjacent to the needle read record, later Horace short, so patented speakers use compressed air, then sold to Charles. Parsons, Irish - English, which patented many other first year 1910.Then there are companies, including Victor Talking Machine com Paris & Parr Smith produced air recording use speakers of compressed air. But the speaker sound quality and play recently low low noise levels.Modern loudspeaker designs in the form electric meter based on movement of the coil. Start by Oliver lodge in 1893 the speaker is true principles. Produced by Peter Jensen Danish engineers, but the patent. They sell goods companies produce the phone is not the team came a change of plans in 1910 named new สินค้าขึ้นมา that MAGNAVOX Magnavox. Manufacture of loudspeakers in particular. This success makes Peter Jensen, joined the company owner Max now redox.From then on. A reformer and develop the loudspeaker to clear more and more efficient power amplifier, along with a wide range of speakers out. There are pretty cool. Cute and classic.
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