I-preamplifier (i-preamp) yinto yombane amplifier elungiselela umqondiso omncinci wombane ukwenzela ukukhulisa okanye ukusetyenzwa.
I-preamplifier ihlala ibekwe kufuphi ne-sensor ukunciphisa imiphumo yengxolo kunye nokuphazamiseka. Isetyenziselwa ukunyusa amandla omqondiso wokuqhuba intambo kwisixhobo esiphambili ngaphandle kokuthobisa kakhulu umlinganiselo we-signal-to-noise ratio (SNR).
Ukusebenza kwengxolo ye-preamplifier kubalulekile; ngokwefomula kaFris, xa i inzuzo ye-preamplifier iphezulu, i-SNR yesiginali yokugqibela inqunywe yi-SNR yesiginali yegalelo kunye nomfanekiso wengxolo we-preamplifier.
Kwinkqubo yeaudio yasekhaya, igama elithi 'preamplifier' ngamanye amaxesha linokuthi lisetyenziswe ukuchaza isixhobo esitshintsha nje phakathi kwemithombo yemigangatho eyahlukeneyo kwaye sisebenzise ulawulo lwevolyum, ukuze kungabikho ukukhulisa kwangempela kunokubandakanyeka.
Kwinkqubo yomsindo, iamplifier yesibini ngokuqhelekileyo sisixhobo sokukhulisa amandla (i-amp yamandla). I-preamplifier ibonelela ngenzuzo yombane (umzekelo ukusuka kwi-10 millivolts ukuya kwi-volt eyi-1) kodwa akukho nzuzo ebalulekileyo yangoku.
I-amplifier yamandla inikezela ngoku okuphezulu okuyimfuneko ukuqhuba isandisi-lizwi.
Iipreamplifiers zisenokuba: zidityaniswe kwizindlu okanye i-chassis yeamplifier ezizondlayo kwindlu eyahlukileyo efakwe ngaphakathi okanye kufutshane nomthombo wesignali, njenge-turntable, i-microphone okanye isixhobo somculo.
Iindidi ze-Preamplifier: Zintathu iindidi ezisisiseko ze-preamplifier zikhoyo: i-preamplifier yangoku-sensitive, i-parasitic-capacitance preamplifier, kunye ne-preamplifier enokuthi ihlawule.
NdinguJoost Nusselder, umseki weNeaera kunye nomthengisi womxholo, utata, kwaye ndiyakuthanda ukuzama izixhobo ezitsha ngesiginkci entliziyweni yothando lwam, kunye neqela lam, ndisenza amanqaku eblogi anzulu ukusukela ngo-2020. ukunceda abafundi abathembekileyo ngokurekhoda kunye neengcebiso zesiginci.
