Enwere ike kewaa akụkọ mmepe nke teknụzụ ụda ụzọ anọ: tube, transistor, sekit agbakwunyere na transistor mmetụta ubi.

N'afọ 1906, American de Forrest chepụtara transistor vacuum, bụ nke sụrụ ụzọ teknụzụ electro-acoustic mmadụ.Emepụtara Bell Labs na 1927. Mgbe teknụzụ nzaghachi na-adịghị mma, mmepe nke teknụzụ ọdịyo abanyela oge ọhụrụ, dị ka Williamson amplifier ejirila teknụzụ nzaghachi na-adịghị mma mee ihe nke ọma iji belata mgbagọ nke amplifier na 1950s, mmepe nke ọkpọkọ ọkpọkọ ruru otu n'ime oge kachasị akpali akpali, ọtụtụ amplifiers tube na-apụta na njedebe.N'ihi na ụda ụda nke ụda ụda tube dị ụtọ na gburugburu, ndị na-anụ ọkụ n'obi ka na-ahọrọ ya.

N'afọ ndị 1960, mpụta nke transistors mere ka ọnụ ọgụgụ buru ibu nke ndị na-anụ ọkụ n'obi banye n'ụwa ọdịyo sara mbara.Igwe ọkụ transistor nwere njiri mara timbre dị nro na nke na-akpụ akpụ, mgbagha dị ala, nzaghachi ugboro ugboro na oke ike.

Na mbido 1960s, United States bu ụzọ webata sekit agbakwunyere, nke bụ ndị otu ọhụrụ nke teknụzụ ọdịyo.Na mmalite 1970s, ụlọ ọrụ ụda na-eji nwayọọ nwayọọ ghọtara sekit jikọtara ọnụ n'ihi ịdị elu ha, ọnụ ala dị ala, obere olu, ọtụtụ ọrụ na ihe ndị ọzọ.Ruo ugbu a, sekit agbakwunyere ụda ihe nkiri gbara ọkpụrụkpụ na sekit agbakwunyere arụ ọrụ ka ejirila ọtụtụ sekit ọdịyo.

N'etiti 1970s, Japan mepụtara tube nkwanye ọrụ mmetụta ubi mbụ.N'ihi na ọkpọkọ ike mmetụta ubi nwere njirimara nke tube elektrọn dị ọcha, agba agba na ụda dị ụtọ, yana oke ike nke 90 dB, THD <0.01% (100KHZ), n'oge na-adịghị anya ọ ghọrọ ewu ewu na ọdịyo.N'ọtụtụ amplifiers taa, a na-eji transistor mmetụta ubi mee ihe dị ka mmepụta ikpeazụ.

 Bass ULF dị mma maka oru ngo

12-inch Full Range Entertainment Ọkà Okwu