Hiki ke māhele ʻia ka mōʻaukala hoʻomohala o ka ʻenehana kani i ʻehā mau pae: tube, transistor, integrated circuit a me field effect transistor.

I ka makahiki 1906, ua hana ʻo American de Forrest i ka transistor vacuum, nāna i hoʻokumu i ka ʻenehana electro-acoustic kanaka.Ua hoʻokumu ʻia ʻo Bell Labs ma 1927. Ma hope o ka ʻenehana manaʻo maikaʻi ʻole, ua komo ka hoʻomohala ʻana o ka ʻenehana leo i kahi au hou, e like me Williamson amplifier ua hoʻohana maikaʻi i ka ʻenehana manaʻo maikaʻi ʻole e hōʻemi nui i ka distortion o ka amplifier i ka makahiki 1950, ka hoʻomohala ʻana o ua hiki ka mea hoʻonui paipu i hoʻokahi o nā manawa hoihoi loa, puka mai nā ʻano mea hoʻokiʻekiʻe tube me ka pau ʻole.No ka mea, ʻono a poepoe ke kala kani o ka mea hoʻokani pila, makemake ʻia e ka poʻe hoihoi.

I ka makahiki 1960, ka puka ʻana mai o nā transistors i hoʻokomo i ka heluna nui o ka poʻe leo leo e komo i kahi honua leo ākea.Loaʻa i nā mea hoʻonui transistor nā hiʻohiʻona o ka timbre maʻalahi a neʻe, haʻahaʻa haʻahaʻa, pane alapine ākea a me ka laulā ikaika.

I ka hoʻomaka ʻana o nā makahiki 1960, ua hoʻokomo mua ʻo ʻAmelika Hui Pū ʻIa i nā kaapuni hoʻohui, ʻo ia nā lālā hou o ka ʻenehana leo.I ka 1970s mua, ua ʻike mālie ʻia nā kaapuni i hoʻohui ʻia e ka ʻoihana kani no ko lākou kūlana kiʻekiʻe, haʻahaʻa kumu kūʻai, liʻiliʻi liʻiliʻi, nui nā hana a pēlā aku.A hiki i kēia manawa, ua hoʻohana nui ʻia nā kaapuni leo kiʻiʻoniʻoni mānoanoa a me nā kaapuni hoʻohui hoʻonui hoʻohana i nā kaapuni leo.

I ka waena waena o 1970s, ua hana ʻo Iapana i ka paipu ʻōlelo paipai hana mua.No ka mea, loaʻa i ka pahu mana hopena nā hiʻohiʻona o ka paipu electron maʻemaʻe, ka mānoanoa a me ke kala ʻoluʻolu, a me ke ʻano ikaika o 90 dB, THD <0.01% (100KHZ), ua lilo koke ia i mea kaulana i ka leo.I ka nui o nā mea hoʻonui i kēia lā, hoʻohana ʻia nā transistors hopena i ka hopena hope loa.

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