Kwesimanjeizinhlelo zomsindo,Ama-amplifier ngokungangabazeki angenye yezingxenye ezibaluleke kakhulu. Akuthinti nje kuphela ikhwalithi yomsindo, kodwa futhi anquma ukusebenza okuphelele kanye nolwazi lomsebenzisi lwesistimu. Lesi sihloko sizogxila ezintweni eziyinhloko zeama-amplifier kagesiukukusiza uqonde ukuthi kungani lezi zakhi zibaluleke kangaka.
1. Ukuphuma kwamandla: Shayela inhliziyo yophondo
Omunye wemisebenzi eyinhloko ye-amplifier ukunikeza amandla anele okushayela isikhulumi. Ukukhishwa kwamandla kunquma ukuthi uhlelo lomsindo lungakwazi yini ukugcina umsindo ocacile nongaguquki ngamavolumu ahlukahlukene. Ukukhishwa kwamandla kwe-amplifier yamandla kuvame ukuvezwa ngama-watts (W). Ukukhetha i-amplifier yamandla efanele kudinga ukucatshangelwa kwamaphuzu alandelayo:
Amandla alinganisiwe esipikha: Amandla e-amplifier kufanele afane namandla alinganisiwe esipikha. Amandla amancane kakhulu angabangela ivolumu enganele kanye nokuphambuka, kuyilapho amandla amaningi kakhulu angalimaza isipikha.
Usayizi wegumbi kanye nendawo yomsindo: Emakamelweni amakhulu noma ezindaweni ezimunca umsindo kahle, kudingeka ama-amplifier anamandla aphezulu ukuqinisekisa ukuthi umsindo umbozwa ngendlela efanayo futhi ucacile.
Uhlobo lomculo kanye nemikhuba yokulalela: Abasebenzisi abajabulela ukulalela umculo osezingeni eliphezulu bangadinga ama-amplifier anamandla aphezulu ukuze balondoloze imininingwane kanye nokuguquguquka komculo ngevolumu ephezulu.
2. Ukuhlanekezela: Umbulali ongabonakali wekhwalithi yomsindo
Ukuhlanekezela kungenye yezinkomba ezibalulekile zokuhlola ikhwalithi yama-amplifiers kagesi. Kubhekisela kunoma yiziphi izinguquko ezingadingekile esignalini yokufaka ngesikhathi senqubo yokukhulisa. Ngokuyinhloko kunezinhlobo ezilandelayo zokuhlanekezela:
Ukuhlanekezela kwe-Harmonic: Ukuphindaphindwa kwemvamisa okukhiqizwa ngesikhathi sokukhulisa isignali. Lokhu kuhlanekezela kungenza umsindo ungabi ngowokwemvelo futhi kuthinte ikhwalithi yomsindo.
Ukuphazamiseka kokuguquguquka kwezwi: imvamisa entsha ekhiqizwayo lapho izimpawu zemvamisa ehlukene zixutshwa ku-amplifier, okungaholela emithanjeni engafuneki kusignali yomsindo.
Ukuphambuka kokuguquguquka komoya: Ubudlelwano obungaqondile phakathi kokukhipha kwe-amplifier yamandla kanye nesignali yokufaka, ngokuvamile okwenzeka ngesikhathi sokulayisha ngokweqile.
Umklamo omuhle kakhulu we-amplifier uzonciphisa lokhu kuphambuka futhi unikeze ikhwalithi yomsindo ecacile nemvelo.
3. Impendulo yemvamisa: Ukubuyisela ububanzi nokujula komsindo
Impendulo yemvamisa ibhekisela ebangeni lemvamisa elingakhuliswa ngempumelelo yi-amplifier yamandla, ngokuvamile elilinganiswa nge-Hertz (Hz). I-amplifier efanelekile kufanele inikeze ukukhuliswa okubushelelezi nokulinganayo kulo lonke uhlobo lomsindo (ngokuvamile kusukela ku-20Hz kuya ku-20kHz). Ibhalansi yempendulo yemvamisa ithinta ngqo umphumela wokubuyiselwa komsindo:
Impendulo yemvamisa ephansi: ithinta ukujula kanye nomthelela we-bass. Ama-amplifier anempendulo enhle yemvamisa ephansi anganikeza imiphumela ye-bass enamandla.
Impendulo yemvamisa ephakathi: ithinta kakhulu ukusebenza kwama-vocals kanye nezinsimbi zomculo, futhi iyingxenye eyinhloko yekhwalithi yomsindo.
Impendulo yemvamisa ephezulu: Ithinta ukucaca nokusebenza kwemininingwane kwamanothi aphezulu, futhi i-amplifier enamandla enempendulo enhle yemvamisa ephezulu ingenza umsindo ube sobala futhi ube ngokoqobo.
4. Isilinganiso sesignali kuya kumsindo (SNR): isiqinisekiso sekhwalithi yomsindo emsulwa
Isilinganiso Sesignali Noise siyinkomba elinganisa isilinganiso phakathi kwesignali ewusizo nomsindo esignalini yokukhipha ye-amplifier yamandla, evame ukuvezwa ngama-decibel (dB). Isilinganiso Esiphezulu Sesignali Noise sisho ukuthi i-amplifier yamandla ikhiqiza umsindo omncane wangemuva lapho ikhulisa isignali, okuqinisekisa ubumsulwa bekhwalithi yomsindo. Ukukhetha i-amplifier yamandla enesilinganiso Esiphezulu Sesignali Noise kunganciphisa ukuphazamiseka kokuzwa futhi kunikeze ulwazi lokulalela olujulile.
5. Ukwakheka kwesekethe yama-amplifier kagesi: itshe eliyisisekelo lokunquma ukusebenza
Ukwakheka kwesekethe yangaphakathi ye-amplifier yamandla kuthinta ngqo ukusebenza kwayo kanye nekhwalithi yomsindo. Kunezinhlobo eziningana zesekethe ezivamile:
I-amplifier yekilasi A: Njengoba inekhwalithi yomsindo engcono kakhulu kodwa isebenza kahle kakhulu, ifanele izinhlelo zomsindo ezisezingeni eliphezulu ezilandela ikhwalithi yomsindo ephezulu kakhulu.
I-amplifier ye-Class B: Ukusebenza kahle okuphezulu kodwa ukuphazamiseka okukhulu, okusetshenziswa kakhulu ezinhlelweni zomsindo eziphakathi nendawo kuya kweziphansi.
I-amplifier ye-Class AB: Ihlanganisa izinzuzo ze-Class A ne-Class B, kanye nokusebenza kahle okuphezulu kanye nekhwalithi yomsindo omuhle, futhi okwamanje iyidizayini ye-amplifier eyinhloko.
I-amplifier yekilasi D: Njengoba isebenza kahle kakhulu futhi incane, ifaneleka kumadivayisi aphathekayo kanye nezinhlelo zesimanje zeshashalazi lasekhaya.
Umklamo ngamunye wesekethe unezinzuzo nezinkinga zawo, futhi ukukhetha uhlobo lwe-amplifier olufanela izidingo zakho kubalulekile.
6. Imisebenzi kanye nokuxhumana kwama-amplifier kagesi: ukuhlangabezana nezidingo ezahlukahlukene
Ama-amplifier anamuhla awadingi nje kuphela ikhwalithi yomsindo enhle kakhulu, kodwa futhi adinga ukuhlinzeka ngemisebenzi ecebile kanye nezixhumi ezisebenzisanayo ukuze zivumelane nezimo ezahlukahlukene zokusetshenziswa. Isibonelo:
Izixhumi eziningi zokufaka, njenge-RCA, i-fiber optic, i-coaxial, i-HDMI, njll., zenza kube lula ukuxhumana kwamadivayisi ahlukahlukene omthombo womsindo.
Ukuxhumeka okungenantambo: njenge-Bluetooth ne-Wi-Fi, okulula ukuhlanganiswa namadivayisi eselula kanyeizinhlelo zasekhaya ezihlakaniphile.
Ukusekelwa kweziteshi eziningi: kufanelekileizinhlelo zeshashalazi lasekhaya, okunikeza ulwazi lomsindo olujulile.
Ukukhetha i-amplifier enhle kakhulu kudinga ukucatshangelwa okubanzi kwezinto ezifana nokukhipha amandla, ukuhlanekezela, impendulo yemvamisa, isilinganiso sesiginali kuya komsindo, ukwakheka kwesekethe, ukusebenza, kanye nezixhumi. Kungale ndlela kuphela lapho singaqinisekisa khona ukusebenza okuhle kakhulu kanye nolwazi lomsebenzisi lwesistimu yomsindo. Kungakhathaliseki ukuthi ungumthandi womculo noma umthandi wemidlalo yaseshashalazini yasekhaya, ukuqonda nokunaka lezi zinto ezibalulekile kuzokusiza ukhethe idivayisi ye-amplifier ekufanelekela kahle, okwenza yonke into yokulalela ibe mnandi.
Isikhathi sokuthunyelwe: Juni-06-2024