Amandla Nobuthakathaka - Ingxenye 1

Umagazini kaFebruwari womagazini we-Audio ushicilele ukuhlolwa okuqhathanisayo kwama-amplifiers amahlanu e-stereo ye-PLN 20-24 ayizinkulungwane. i-zloty. Asengavele afakwe kusigaba esisezingeni eliphezulu, nakuba uhlaka lwentengo lungalawulwa yizindinganiso eziqinile. Futhi nakuba kukhona ama-amplifiers abiza kakhulu - ikakhulukazi "i-preamplifier - amandla amplifier" inhlanganisela, phakathi kwama-amplifiers ahlanganisiwe yimiklamo ethuthuke kakhulu.

Kuyafaneleka ukuwabheka okungenani "izinqamuleli". Yiziphi izixazululo ezikhethekile ezingatholakala kulolu siling? Ziphi izinzuzo zabo ngaphezu kwemishini eshibhile? Ingabe zingezesimanjemanje, ziyaguquguquka, zinamandla, ziqine kakhulu noma, ngaphezu kwakho konke, zinobukhazikhazi, ziletha intengo kuphela isiphakamiso sekhwalithi?

I-audiophile izobhikisha kuleli phuzu: ikhwalithi yangempela ye-amplifier noma iyiphi idivayisi yomsindo ayilinganiswa ngamandla alinganiselwe, inani lamasokhethi nemisebenzi, kodwa ihlola lezi zinkinga ngokusekelwe kumsindo!

Ngeke siphikisane nakho nhlobo (okungenani hhayi kulokhu). Sizoyidlula inkinga edalwe ngale ndlela, esigunyazwe ngayo inhloso nendawo yalolu cwaningo. Sizogxila kumasu ahlanzekile, ngenkathi sixoxa ngezindaba eziningi ezijwayelekile.

Okokufaka kwedijithali

Ngokubaluleka okukhulayo kwemithombo yesignali yedijithali, izikhulisa-zwi ezengeziwe zifakwe okokufaka kwedijithali, ngakho-ke iziguquli zedijithali-kuya-analog. Ake sichaze, uma kwenzeka, ukuthi ngalo mqondo asibheki isidlali se-CD "njengomthombo wedijithali", njengoba ifakwe isiguquli se-D / A futhi singathumela isignali ye-analog ku-amplifier. Ngakho-ke imayelana namakhompyutha, amakhompyutha aphathekayo, amaseva, njll., lapho sigcina khona okungenani imitapo yolwazi yethu yomculo kaningi. Ukusebenza kwabo kungenzeka ngamasistimu amisiwe ahlukahlukene, kodwa kufanele kube khona isiguquli se-D / A endaweni ethile kuzo - njengedivayisi ezimele noma njengesistimu eyakhelwe kwenye idivayisi.

Esinye sezixazululo ezingenzeka futhi ezilula ukufaka i-DAC ku-amplifier, njengoba i-amplifier kufanele ibe khona kuwo wonke amasistimu omsindo, ngokuvamile futhi isebenze "njengendlunkulu", iqoqa amasignali emithonjeni ehlukahlukene - ngakho-ke mayiqoqe idijithali. izimpawu. Kodwa-ke, lesi akusona ukuphela kwesixazululo esibophezelayo, njengoba kufakazelwa yilolu vivinyo (ngisho nokugcizelela kakhulu futhi okungameleli kakhulu kuwo wonke ama-amplifiers). Ama-amplifiers ahloliwe angaba amathathu kwabahlanu ayengenayo i-DAC ebhodini, okungelona ihlazo noma isizathu sokudunyiswa. Kungase kubangele hhayi kakhulu "ukubambezeleka", kodwa kusukela kunqubomgomo kanye nokucabangela ukuthi umnikazi wesistimu yezinga eliphezulu uzovuma ukuthenga i-DAC ehlukile, esezingeni eliphezulu ngokwanele, enganeliseki ngesekhethi eyakhelwe ngaphakathi. okuhlanganisiwe.

I-Arcam A49 - isebenza kuphela kumasiginali we-analog, kodwa iphelele kakhulu kulokhu: inokufakwa kwe-phono (MM) nokuphuma kwe-headphone.

Yiqiniso, ungayibona ngendlela ehlukile, okungukuthi, lindela ukuthi i-amplifier yezinga eliphezulu ibe yesimanje futhi iguquguquke ngangokunokwenzeka. Kodwa-ke, kuncike ekuthandweni komuntu siqu kanye nomqondo walo lonke uhlelo. Iqiniso liwukuthi kuma-amplifiers avela kumabanga aphansi amanani (ngaphandle kwalawo ashibhile), abashayeli abakhelwe ngaphakathi bavame kakhulu, ngakho-ke isiphetho sokuqala mayelana nama-amplifiers ahlanganisiwe abiza kakhulu ukuthi kulo mkhakha ababonisi ngokuhlanganyela inzuzo yabo. phezu kwamamodeli ashibhile.

Kodwa-ke, kunezimo, futhi kwenzeka futhi ekuhlolweni kwethu, lapho i-amplifier ifakwe ngokuphelele, isebenzisa izifunda zakamuva zedijithali, esingeke sihlangane nazo (okungenani hhayi manje) ngemiklamo eshibhile, ngisho nokudlala indima yomdlali wokusakaza. (ngaphandle kokuguqula idijithali ibe yi-analog, ukwazi nokukhipha amafayela, okudingayo ezinye izakhiwo). Ngakho-ke uma sifuna i-amplifier yesimanje kakhulu futhi "epholile", sizoyithola maduze emazingeni amanani aphezulu, kodwa ... kufanele futhi uyibheke lapho, ungayithathi kuqala ebhange - intengo yodwa. ayikuqinisekisi.

Isiteji sePhono

Olunye ucezu olubalulekile lwemishini ku-amplifier yesimanje okokufaka okuphendukayo (okunama-cartridges e-MM / MC). Iminyaka eminingi emaphethelweni entshisekelo, iphinde yathola ukubaluleka kwayo, vele, ngegagasi lokuvuselelwa kabusha kwe-turntable ngokwayo.

Ake sikukhumbuze kafushane ukuthi isiginali evela ku-MM / MC cartridges inemingcele ehluke ngokuphelele kunesiginali evela kulokho okubizwa. linear, lapho okokufaka "komugqa" we-amplifier kulungiselelwa. Isiginali iqonde kusuka ebhodini (kusuka ekufakweni kwe-MM / MC) inezinga eliphansi kakhulu futhi izici ezingekho emgqeni, ezidinga ukulungiswa okujulile kanye nokuzuza ukuze kufinyelelwe imingcele yesiginali yomugqa futhi inganikezwa okokufaka komugqa we-amplifier, noma ngqo kumasekhethi ayo angezansi komfula. Umuntu angabuza ukuthi kungani izigaba zephono zingakhiwe zibe ama-turntable (njengama-converter e-D / A akhelwe kubadlali be-CD), ukuze isignali yomugqa igeleze iqonde isuka ku-turntable? Muva nje, amanye ama-turntable ane-equalization eyakhelwe ngaphakathi avele, kodwa sekuyiminyaka kusungulwe izinga lokuthi umsebenzisi kufanele azinakekele ngokwakhe ukulungiswa; ezingeni angakwazi nalinendaba nalo.

Izici eziqondile zokulungiswa nokukhulisa isignali evela ku-cartridge kufanele ihambisane nemingcele yayo, futhi lezi azilawulwa ngokuqinile ngamazinga (zingaphakathi kwemingcele ebanzi). Iningi lama-cartridges anamapharamitha asondelene namanani asekelwa kahle ngamasekethe adumile afakwe kuma-amplifiers ahlanganisiwe (ake siyibize njengesixazululo esiyisisekelo). Kodwa-ke, ukuthola imiphumela engcono kakhulu, ikakhulukazi ngamakhatriji aphezulu, kudinga kokubili ukulungiswa kokulinganisa okucolisekileyo kanye nesekethe yekhwalithi ephezulu ngokwanele iyonke. Umsebenzi onjalo wenziwa izigaba zephono ezihlukene, ngendlela yamadivayisi azimele, amancane namakhulu, ngokuvamile ngokulawulwa kwemingcele eminingi. Ngenxa yalo mqondo wokwakha uhlelo lwezinga eliphezulu, lapho amarekhodi e-vinyl azodlala indima ebalulekile, ukushiywa kwesifunda sokulungiswa kwe-MM / MC ku-amplifier edidiyelwe kuyaqondakala, kufana nokuntuleka kwesiguquli se-D / A. . Kungenxa yokuthi umuntu akufanele alindele - ngisho naku-amplifier edidiyelwe engcono kakhulu - ukusebenza kwesiteji sephono esithuthuke kakhulu nesiyinkimbinkimbi. Kungaba into ebiza kakhulu yedizayini esezingeni eliphezulu, engadingeki kubasebenzisi abaningi.

Ngakho-ke, i-amplifiers eyodwa kuphela kwezinhlanu ezihloliwe ezinokufakwayo okuphendukayo, futhi enguqulweni enesizotha kakhulu, yama-cartridges we-MM. Eqinisweni, okokufaka okunjalo kwanele ku-95% wabo bonke abasebenzisi be-analog, futhi cishe ingxenye yesigamu sabasebenzisi be-analog ezinhlelweni eziphezulu - cishe wonke umuntu ufuna i-turntable namuhla, kodwa abantu abambalwa baxosha umsindo wayo ngezindleko eziphezulu. Noma kunjalo, isimo esinjalo (esisodwa kuphela kwabahlanu) siyadumaza kancane. Ukulinganisa okuyisisekelo kwe-MM, ngisho nangesiqalo esihle sokudlala nge-analog, bekungeke kulimaze noma iyiphi i-amplifier ehlanganisiwe, eshibhile noma ebizayo.

I-Gato Audio DIA-250S - yesimanje, enesigaba sedijithali (i-USB, okokufaka kwe-coaxial ne-optical), ngisho nokwengezwa kwe-Bluetooth, kodwa ngaphandle kokufaka kwe-phono nokuphuma kwe-headphone.

Okukhipha i-headphone

Kubukeka sengathi ngezikhathi zokuduma okukhulu kwamahedfoni, i-amplifier ehlanganisiwe kufanele ibe nokuphumayo okufanele. Kodwa nokho… Amamodeli amabili kuphela ayenawo. Lapha, ukulungisiswa (okubuthakathaka) kuphinde kube umqondo wokusebenzisa amadivaysi akhethekile, kulokhu ama-amplifiers e-headphone, anganikeza ikhwalithi yomsindo engcono kunesifunda esinesizotha esakhelwe ku-amplifier ehlanganisiwe. Kodwa-ke, abasebenzisi abaningi bezinhlelo ezibiza kakhulu, kufaka phakathi ama-amplifiers nezipikha, baphatha ama-headphones njengenye indlela, indlela yokulalela yokusekelayo, abachithi imali enkulu kubo, futhi ngisho nangaphansi abahlose ukuchitha ngisho nangaphezulu ku-amplifier ekhethekile ye-headphone. ... Bafuna nje ukuxhuma ama-headphone abo "ndawana thize".

I-Bluetooth

I-Bluetooth ivela endaweni ehluke ngokuphelele. Enye yama-amplifiers amahlanu nayo ifakwe ngayo, futhi vele ingenye yalezi ezimbili ezinesigaba sedijithali. Kulokhu, akukhona mayelana "nokuvulwa" kweminye imithombo yesignali yekhwalithi ephezulu, kodwa mayelana nesimanje endaweni yokuxhumana, nakuba ikhwalithi inqunyelwe ngokungathí sina imingcele yezinga le-Bluetooth ngokwayo; Impela akuyona insiza ye-audiophile, kodwa awudingi ukuyisebenzisa. Futhi futhi - lolu hlobo lwegajethi (yize lungalinga futhi luwusizo kwabaningi) luvela kuma-amplifiers ashibhile kakhulu. Ngakho-ke nakuba kuseyivelakancane, akuwona ukukhanga okufanele sikukhokhele ngaphezulu kwe-PLN 20. i-zloty...

XLR amasokhethi

Ake siphinde sisho amasokhethi ohlobo lwe-XLR (olinganiselayo), ekugcineni okuyingxenye yemishini evame ukutholakala kuma-amplifiers abiza kakhulu kunalawo ashibhile. Wonke amamodeli amahlanu ohlolo olushiwo anokokufaka kwe-XLR (nakuma-RCA "avamile"), kanti amathathu nawo anomphumela we-XLR (okusuka esigabeni se-preamplifier). Ngakho-ke kubonakala sengathi i-amplifier yezinkulungwane ezingama-20. I-PLN ingaba ukukhubazeka, ukuntuleka kwemibono enjalo, nakuba ukubaluleka kwayo okungokoqobo kungaxoxwa ngakho. Awekho ama-amplifiers ahloliwe amasokhethi e-XLR ayingxenye yalokho okubizwa ibhalansi, ikuvumela ukuthi udlulise futhi ukhulise amasiginali ngomjikelezo olinganiselayo ngokugcwele. Kumamodeli ahloliwe, isignali enikezwa okokufaka kwe-XLR isuswa ngokushesha futhi iqhutshekwe ngokuqhubekayo ngendlela efanayo namasiginali anikezwe okokufaka kwe-RCA okungalingani. Ngakho-ke kunezinzuzo kuphela zokudluliswa kwesignali ngendlela elinganiselayo (okuyinto, vele, udinga idivayisi yomthombo enokukhishwa kwe-XLR), engenakuthinteka kakhulu ekuphazamisekeni kwangaphandle. Kodwa-ke, lokhu kubaluleke kakhulu esimweni sokuxhumana okude nasendaweni egcwele imithombo yokuphazamiseka - yingakho kuyindinganiso kubuchwepheshe besitudiyo, kuyilapho ohlelweni lwe-audiophile luhlala "luyifancy". Ngaphezu kwalokho, okungenzeka kunciphise ikhwalithi, ngoba amasekhethi engeziwe e-desymmetrization (isignali ngemva kokufaka) angase abe umthombo womsindo owengeziwe. Qaphela ngokusetshenziswa kokufakwayo kwe-XLR futhi ungacabangi ukuthi kuzonikeza imiphumela engcono.

I-Hegel H360 - amathuba abanzi esigaba sedijithali (ayamukeli i-PCM kuphela nge-USB, kodwa futhi amafayela we-Flac ne-WAV nge-LAN). Ngeshwa, futhi lapha akukho okokufaka okujikayo noma okuphumayo kwe-headphone.

imenyu

Kuma-amplifiers abiza kakhulu kuphela ngezinye izikhathi lapho sithola khona imisebenzi eyengeziwe, ehlelwa kumenyu (kanye nesibonisi esibanzi kakhulu noma esincane), esivumela umsebenzisi ukuthi asethe ukuzwela kokufakwayo ngakunye, abanikeze amagama abo, njll. Nokho, izinto ezinjalo ezihehayo akudingekile ukuthi wonke umuntu ajabule, futhi azikho isibopho saphakade ngisho naphakathi kwama-amplifiers asezingeni eliphezulu. Ngakho-ke, eqenjini elihloliwe, akekho owayenazo, nakuba ezine zazinezibonisi, kodwa zazibonisa ulwazi oluyisisekelo kuphela (uphawu lokokufaka okukhethiwe, izinga levolumu, futhi kwesinye isikhathi nemvamisa yesampula yesiginali yedijithali enikeziwe, kanye esimweni esisodwa kuphela izinga levolumu, kodwa ngokunemba okungavamile - kufika kuhhafu we-decibel).

Umamukeli ongcono?

Ukufingqa i-functional sphere, ama-amplifiers ahloliwe njengeqembu awazange ahlabeke umxhwele nganoma yini, ngokucabangela amanani abo. Ezinye zazo ziyisisekelo kakhulu, okuyinto, nokho, eyanele kuma-audiophiles amaningi, noma ngabe bakha isistimu "ye-minimalist" (isb. ngesidlali se-CD nezipikha zomsindo kuphela) noma abalungele ukuthenga izisetshenziswa ezikhethekile eziklanyelwe izidingo zomuntu ngamunye (i-DAC, iphono). -isiteji, i-headphone amplifier). "Ukucindezeleka" kwezakhiwo okuxoxwe ngazo kunganezelwa ukuthi namuhla abemukeli be-AV bangaziqhayisa ngemishini engcono - kanye nemishini ebangeni okuxoxwe ngalo lapha, ngaphandle kokubala izengezo ezinothile ezihlobene nokucubungula isignali nomsindo weziteshi eziningi. Zonke zinemiphumela yama-headphone, zonke zineziguquli ze-D/A (ngoba kufanele zibe nokokufaka kwedijithali, okuhlanganisa ne-USB), eziningi zazo zinokufakwa kwedijithali, kuphela ezimbi kakhulu ezingenaso ngisho nesidlali sokusakaza esilula (i-LAN input), futhi abaningi banezilula, kodwa namanje - isiteji sephono ...

Iqiniso lokuthi wonke ama-amplifiers ahloliwe alawulwa ukude akufanele ngisho kukhulunywe, ngoba kuyinto eyisisekelo namuhla.

Ukuhlolwa kwekhwalithi kokugcina kusavuliwe. Esikhathini senyanga sizoxoxa ngamasekethe angaphakathi kanye nemingcele yesigaba esibaluleke kakhulu - ama-amplifiers amandla alawa mamodeli. Phela, njengoba negama liphakamisa, i-amplifier yakhelwe ukukhulisa ...