Nzira yekusarudza sei amplifier yemagudzanzwi?

Iyo amplifier chimwe chezvinhu zvakakosha zveinzwi system. Iine ma parameter akawanda atinofanira kutevedzera pakusarudza mhinduro chaiyo. Nekudaro, kusarudzwa kweimwe modhi haisi pachena, iyo inodzivirirwa nemusika wakakura wemidziyo yekuteerera. Chii chakakodzera kuteerera? Nezve pazasi.

Pane chinhu chimwe chete chandinofanira kutaura pakutanga. Chekutanga, tinotenga magudzanzwi tobva tasarudza akakodzera amplifiers, kwete neimwe nzira. Maparamita egudzanzwi anoshandiswa neamplifaya ndiwo akakosha.

Amplifier uye simba amplifier

Pfungwa yeamplifier inowanzobatanidzwa neimba yekuteerera midziyo. Pachikuva, mudziyo wakadaro unonzi powermixer, zita rinobva mukubatanidzwa kwezvinhu zvese zviri zviviri.

Saka imwe yakasiyana sei neimwe? Amplifier yemba ine simba rekusimudzira uye preamplifier. Iyo simba amplifier - chinhu chinowedzera chiratidzo, iyo preamplifier inogona kufananidzwa nemusanganisi.

Mune tekinoroji tekinoroji, isu dzimwe nguva tinoshandisa mudziyo werudzi urwu nekuti hazvishande, uye sezvo isu tichida musanganisi ataurwa pamusoro apa sepreamplifier kuti ave nezvose zviri pedyo, tinomanikidzwa kutenga chinhu chinosimudzira chete nekuti chiratidzo chinofanirwa kunge chiripo. kukwidziridzwa neimwe nzira.

Chishandiso chakadaro, chakasiyana neamplifier, kazhinji chinongova nechiratidzo chekuisa, switch yemagetsi uye kubuda kwegudzanzwi, haina preamplifier. Isu tinogona kunyange kuziva chikamu chakapihwa chemidziyo nekuvakwa kwayo, sezvo paine mutsauko wakajeka muhuwandu hwezvinhu zvinoshandiswa kugadzirisa akasiyana ma parameter.

Nzira yekusarudza simba amplifier?

Ndataura pamusoro apa kuti harisi basa riri nyore. Tinofanira kutungamirirwa kusvika pamwero mukuru nemiganhu yegudzanzwi iyo "kuguma" kwakapiwa kwesimba kuchashanda. Isu tinosarudza midziyo kuitira kuti simba rekubuda reiyo amplifier (RMS) rienzane neiyo loudspeaker simba kana yakakwira zvishoma, isingambodzike.

Chokwadi ndechekuti zviri nyore kukuvadza gudzanzwi rine simba risina simba rekusimudzira pane nerinenge ranyanya kusimba. Izvi zvinodaro nekuti nekutamba kusvika pakugona kwakazara kwemidziyo yedu, tinogona kukanganisa ruzha, nekuti gudzanzwi haringakwanise kuburitsa zvakazara ruzha rwechidimbu chakapihwa nekuda kwesimba risina kukwana rinopihwa neamplifying element. Gudzanzwi rinoda "zvizhinji uye zvakawanda" uye simba redu rekusimudzira simba harigone kutipa. Chimwe chinhu chine kukanganisa pakushomeka kwewatts ndeyekukwira kwepamusoro kweiyo diaphragm deflection.

Uyewo teerera kune iyo shoma impedance iyo mudziyo unogona kushanda nayo. Ko kana iwe ukatenga magetsi amplifier anoshanda neashoma kubuda impedance ye8 ohms wobva watenga 4 ohms masipika? Iyo seti haigone kuenderana kune mumwe nemumwe, nekuti iyo amplifier yaisazoshanda zvinoenderana nemugadziri wekurudziro uye yaizokurumidza kukuvara.

Naizvozvo, kutanga magudzanzwi, zvino, zvinoenderana neawo paramita, simba amplifier rine simba rakakodzera uye shoma inobuda impedance kuti ikwanise kushanda nemagudzanzwi akatengwa.

Iyo brand ine basa here? Ehe saizvozvo. Kutanga, kana iwe usina mari yakawandisa, ndinokurudzira kutenga chigadzirwa chemumba, chigadzirwa chedu. Ichokwadi kuti chitarisiko uye simba-ku-huremu reshiyo hazvikurudzire, asi isarudzo yakanaka chaizvo.

Kuvaka kunokoshawo zvikuru. Nekuda kwekugara uchipfeka, kutakura uye kushandiswa mumamiriro akasiyana-siyana, danho remagetsi amplifiers rinofanira kunge riine dzimba dzakasimba, dzakagadzirwa neinosvika maviri millimeter sheet simbi.

Tarisa zvakare kuti ine security ipi. Chokutanga pane zvose, tinofanira kuwana "Chengetedza" LED. Mu90% yemagetsi amps, kubatidza iyi LED inobvisa magudzanzwi, saka kunyarara. Iyi dziviriro yakakosha sezvo ichidzivirira magudzanzwi kubva kuDC voltage inouraya magudza. Saka ko kana amplifier iine fuse uye koramu iri 4 kana 8 ohms yekunanga ikozvino, fuse inobata zvishoma nezvishoma, dzimwe nguva inokwana chidimbu chesekondi uye isu tine coil yakatsva mugudzanzwi, saka yakakosha. kudzivirira.

Inotevera mumutsara ndiyo clip chiratidzo, iyo "clip" LED. Nehunyanzvi kutaura, inosaina overdrive, kureva kudarika iyo yakatemerwa kubuda simba. Inozviratidza mukutaura kwecolloquially ne crackle. Mamiriro aya ane ngozi kune ma tweeters asingadi masaini akakanganiswa zvakanyanya uye ari nyore kukuvadzwa, tisingarevi mhando yekurira kweiyo yakakanganiswa amplifier.

Amplifier parameters iyo inofanirwa kuverengerwa

Iyo yakakosha parameter isimba reiyo amplifier - inhamba yakashandurwa kukosha payakayerwa mutoro impedance. Iri simba rinofanira kuratidzwa sesimba reRMS, nekuti isimba rinoramba riripo iro simba amplifier rinogona kupa panguva yebasa refu. Hatifungi nezvemamwe marudzi esimba, akadai sesimba remimhanzi.

Iyo frequency mhinduro zvakare yakakosha parameter. Iyo inosarudza hushoma uye huwandu hwehuwandu hwechiratidzo pakubuda kweamplifier. Zvakakodzera kupihwa nekuderera kwechiratidzo amplitude. Chigadzirwa chakanaka chine iyi parameter pane frequency level ye20 Hz -25 kHz. Rangarira kuti isu tinofarira mu "simba" bandwidth, kureva, pamutoro wakaenzana wakaenzana nemutoro wakayerwa, nehupamhi husina kuchinjika amplitude yechiratidzo chekubuda.

Kukanganisa - kwatiri isu tinofarira kukosha kusingapfuuri 0,1%.

Iko kushandiswa kwesimba kubva kunetiweki kwakakosha zvakare. Semuenzaniso, kune 2 x 200W amplifier, kushandiswa kwakadaro kunofanira kunge kune 450W. Kana mugadziri achirumbidza chigadzirwa chine simba rakawanda uye yakaderera simba rekushandisa kubva kunetiweki, zvinoreva kuti maparameter aya akanyanya kukanganisa uye kutenga kwechigadzirwa chakadaro kunofanira kusiiwa nekukurumidza.

Kana iwe wakanyatsoverenga chinyorwa chose, usakanganwa nezve yakatemerwa impedance yeamplifier zvakare. Iyo yakakwira kirasi yesimba amplifier, zviri nani iyo inogadziriswa kushanda ine yakaderera impedance.

Rangarira, chigadzirwa chakanaka chinofanira kuyera chayo, nei? Zvakanaka, nekuti izvo zvinorema zvakanyanya zvekuvakwa kweamplifier ndizvo zvinhu zvinotarisisa maparamita ayo akakosha. Izvi ndezvi: transformer (50-60% yehuremu hwose), electrolytic capacitors uye kupisa kunopisa. Panguva imwecheteyo, ivo (kunze kwekupisa kwekupisa) chimwe chezvinhu zvinodhura zvinodhura.

Izvi hazvishande kukirasi "D" amplifiers zvichibva pane switched mode magetsi ekushandisa. Nekuda kwekushaikwa kweshanduko, aya matipi akareruka, asi achiri kudhura zvakanyanya.

Summation

Chinyorwa chiri pamusoro chine zvakawanda zvekurerutsa uye chakagadzirirwa vanotanga, saka ndakaedza kutsanangura pfungwa dzese sezvinobvira. Ndine chokwadi chokuti mushure mekuverenga zvinyorwa zvose zvakanyatsonaka iwe hauzove nematambudziko nekusarudza midziyo yakakodzera. Yeuka kushandisa pfungwa pakutenga, sechisarudzo chakanaka chichaguma nezviitiko zvakawanda zvakabudirira uye pasina kukanganisa mune ramangwana.

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