Imbali yophuhliso yetekhnoloji yesandi inokwahlulwa ibe ngamanqanaba amane: ityhubhu, i-fissistor, iSiphumo seSiphumo seSiphumo seSiseko seSiseko.

Ngo-1906, i-American De Arture ifakwe i-vacum ye-vacuum, engubani itekhnoloji yabantu i-acoustic. I-Bell Lebs yaqanjwa ngo-1927. Emva kwetekhnoloji yeengxelo ezimbi, ukuphuculwa kwetekhnoloji ye-audio isebenzise itekhnoloji ye-Amplifier ukuya kwi-Amplifier ye-Amplifier ifikelele kwilinye lawona maxesha aphezulu, iintlobo ezahlukeneyo zetyhubhu ziphuma ngokungapheliyo. Ngenxa yokuba umbala wesandi we-tube amplifier imnandi kwaye ujikeleze, isakhethiwe ngentshiseko.

Ngo-1960s, ukuvela kwabahambileyo kwenza inani elikhulu le-Audio Audio Audio Audio Audiyo. I-Amelifiers ye-I-Imelifiers ineempawu zexesha elibuthathaka kunye neshukumayo, ukugqobhoza okuphantsi, impendulo enobubanzi obubanzi kunye nodidi lwe-adynamic.

Ebutsheni bowe-1960, i-United States yazisa kuqala iziphaluka ezihlanganisiweyo, ezingamalungu amatsha etekhnoloji yeaudio. Ebutsheni beminyaka yee-1970, izijikelezo ezihlanganisiweyo zamkelwa ngokuthe ngcembe yishishini elivakalayo ngenxa yomgangatho wabo ophezulu, ixabiso eliphantsi, ivolumu encinci, imisebenzi emininzi njalo njalo. Ukuza kuthi ga ngoku, iisekethe ezihlanganisiweyo zefilimu ezihlanganisiweyo kunye neesekethe ezihlanganisiweyo ze-Amlifier zisetyenziswe ngokubanzi kwimijikelezo yeaudio.

Ebudeni-1970s, iJapan yavelisa ityhubhu yeSiphumo sokuSebenza. Ngenxa yokuba ityhubhu yamandla entsimi inemilinganiselo ye-tube ye-elektroni emsulwa, i-ternick kunye ne-synamic yombala wama-90 db, i-0.01% (i-100kz), yaya yathandwayo kwi-audio. Kwimilinganiselo emininzi ye-Amplifiifisies namhlanje, abahambisi befuthe lemigangatho isetyenziswa njengemveliso yokugqibela.

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