Mphamvu ndi Kufooka - Gawo 1

Magazini ya February ya Audio idasindikiza kuyesa kofananira kwa ma stereo amplifiers asanu a PLN 20-24 zikwi. zloti. Iwo akhoza kale kugawidwa ngati apamwamba, ngakhale kuti mtengo wamtengo wapatali sunayendetsedwe ndi miyezo yokhwima. Ndipo ngakhale pali amplifiers okwera mtengo kwambiri - makamaka "preamplifier - power amplifier" kuphatikiza, pakati pa amplifiers ophatikizika ndiwo mapangidwe apamwamba kwambiri.

Ndikoyenera kuyang'ana pa iwo osachepera "mafupi". Ndi njira ziti zapadera zomwe zingapezeke padengali? Kodi ubwino wawo uli kuti kuposa zipangizo zotsika mtengo? Kodi ndi zamakono, zosunthika, zamphamvu, zolimba kwambiri kapena, koposa zonse, zapamwamba kwambiri, zikubweretsa ndi mtengo malingaliro chabe a khalidwe?

Audiophile idzatsutsa panthawiyi: khalidwe lenileni la amplifier kapena chipangizo chilichonse chomvera sichimayesedwa ndi mphamvu yovotera, chiwerengero cha sockets ndi ntchito, koma imayang'ana nkhaniyi potengera phokoso!

Sitidzatsutsana nazo konse (osachepera nthawi ino). Tilambalala vuto lomwe likubwera motere, lomwe tavomerezedwa ndi cholinga ndi malo a kafukufukuyu. Tidzayang'ana pa njira yoyera, pamene tikukambirana nkhani zambiri.

Zolowetsa pa digito

Ndi kufunikira kokulirapo kwa magwero amtundu wa digito, ma amplifiers ochulukirachulukira amakhala ndi zolowetsa digito, motero otembenuza digito-to-analog. Tiyeni tifotokoze, ngati, m'lingaliro ili, sitingaganizire CD player ngati "gwero la digito", popeza ili ndi D / A converter ndipo imatha kutumiza chizindikiro cha analogi kwa amplifier. Chifukwa chake ndi za makompyuta, ma laputopu, maseva, ndi zina zambiri, pomwe timasungamo malaibulale athu anyimbo pafupipafupi. Zitha kugwiritsidwa ntchito ndi machitidwe osiyanasiyana, koma chosinthira cha D / A chiyenera kuwonekera kwinakwake mwa iwo - kaya ngati chipangizo chodziyimira pawokha kapena ngati dongosolo lopangidwa mu chipangizo china.

Imodzi mwa njira zomwe zingatheke komanso zosavuta ndikukhazikitsa DAC mu amplifier, monga amplifier iyenera kukhalapo mumtundu uliwonse wa audio, nthawi zambiri imakhala ngati "likulu", kusonkhanitsa zizindikiro kuchokera kuzinthu zosiyanasiyana - kotero kuti itengerenso digito. zizindikiro. Komabe, iyi si njira yokhayo komanso yomangiriza, monga zikuwonetseredwa ndi mayesowa (ngakhale otsimikiza kwambiri komanso osayimira kwambiri amplifiers onse). Ma amplifiers atatu mwa asanu omwe adayesedwa analibe DAC m'bwalo, zomwe sizochititsa manyazi kapena chifukwa chotamandidwa. Zingabweretse osati zambiri kuchokera ku "kuchedwa", koma kuchokera ku ndondomeko ndi lingaliro lakuti mwiniwake wa dongosolo lapamwamba lapamwamba adzakhala wokonzeka kugula DAC yosiyana, yokwanira yapamwamba, osakhutira ndi dera lomwe linamangidwa. Integrated.

Arcam A49 - imagwira ntchito pazizindikiro za analogi, koma ndiyokwanira kwambiri pankhaniyi: ili ndi kulowetsa kwa phono (MM) ndi kutulutsa kwamutu.

Zoonadi, mukhoza kuziwona mosiyana, ndiko kuti, kuyembekezera amplifier yapamwamba kukhala yamakono komanso yosunthika momwe mungathere. Izi, komabe, zimatengera zomwe amakonda komanso lingaliro la dongosolo lonse. Chowonadi ndi chakuti mu amplifiers kuchokera kumitengo yotsika mtengo (kupatula otsika mtengo), madalaivala omangidwa amakhala ofala kwambiri, kotero kuti chomaliza choyamba chokhudza ma amplifiers okwera mtengo kwambiri ndikuti m'munda uno sawonetsa palimodzi mwayi wawo. pa zitsanzo zotsika mtengo.

Komabe, pali zochitika, ndipo zinachitikanso mu mayesero athu, pamene amplifier ali okonzeka bwino, pogwiritsa ntchito mabwalo atsopano a digito, omwe sitingakumane nawo (osachepera pano) muzojambula zotsika mtengo, ngakhale kusewera ngati wosewera mpira. (kupatula kutembenuza digito kukhala analogi, kutha kumasulanso mafayilo, omwe amafunikira masanjidwe ena). Kotero ngati tikuyang'ana amplifier yamakono kwambiri komanso "ozizira", tidzaipeza posachedwa pamasalefu apamwamba, koma ... sizikutsimikizira.

Phono-siteji

Chida china chofunikira mu amplifier yamakono ndi cholumikizira chosinthira (chokhala ndi makatiriji a MM / MC). Kwa zaka zambiri pamphepete mwa chiwongoladzanja, chinayambiranso kufunikira kwake, ndithudi, pa funde la kubwezeretsedwa kwa turntable palokha.

Tiyeni tikukumbutseni mwachidule kuti chizindikiro chochokera ku makatiriji a MM / MC chili ndi magawo osiyana kwambiri ndi chizindikiro cha zomwe zimatchedwa linear, zomwe zolowetsa "mzere" wa amplifier zimakonzedwa. Chizindikiro chowongoka kuchokera pa bolodi (kuchokera ku MM / MC) chimakhala ndi mawonekedwe otsika kwambiri komanso osagwirizana, omwe amafunikira kuwongolera kwakukulu ndi kupindula kuti afikire magawo a chizindikiro cha mzere ndipo akhoza kudyetsedwa ku zolowetsa mzere wa amplifier, kapena molunjika ku mabwalo ake akumunsi. Mmodzi atha kufunsa chifukwa chake ma phono-masitepe sanapangidwe kukhala ma turntable (monga otembenuza a D / A amapangidwa kukhala osewera ma CD), kotero kuti chizindikiro chamzere chiziyenda molunjika kuchokera ku turntable? Posachedwapa, ma turntables omwe ali ndi mafananidwe opangidwira adawonekera, koma kwa zaka zambiri zakhazikitsidwa kuti wogwiritsa ntchito adzisamalira yekha; pamlingo womwe angathe komanso amasamala.

Makhalidwe enieni a kuwongolera ndi kukulitsa chizindikiro chochokera ku cartridge chiyenera kufanana ndi magawo ake, ndipo izi sizimayendetsedwa ndi miyezo (zili mkati mwa malire aakulu). Makatiriji ambiri ali ndi magawo pafupi ndi mfundo zomwe zimathandizidwa bwino ndi mabwalo otchuka omwe amaikidwa muzowonjezera zophatikiza (tiyeni titchule yankho lofunikira). Komabe, kupeza zotsatira zabwino kwambiri, makamaka zokhala ndi makatiriji apamwamba kwambiri, zimafunikira kusintha kofananirako komanso kuzungulira kwapamwamba kokwanira. Ntchito yotereyi imachitidwa ndi magawo osiyana a phono, mwa mawonekedwe a zipangizo zodziimira, zazing'ono ndi zazikulu, nthawi zambiri ndi malamulo a magawo ambiri. Chifukwa cha lingaliro ili lomanga dongosolo lapamwamba kwambiri, momwe ma vinyl rekodi ayenera kugwira ntchito yofunikira, kusiya kwa MM / MC kuwongolera dera mu amplifier yophatikizika kumakhala komveka, mofanana ndi kusowa kwa D / A converter circuit. . Ndi chifukwa chakuti munthu sayenera kuyembekezera - ngakhale kuchokera ku amplifier yabwino kwambiri - kugwira ntchito kwa phono-siteji yapamwamba kwambiri komanso yapamwamba. Zingakhale zodula kwambiri pamapangidwe apamwamba, osafunikira kwa ambiri ogwiritsa ntchito.

Chifukwa chake, imodzi yokha mwa ma amplifiers asanu oyesedwa omwe ali ndi chosinthira, ndipo mu mtundu wocheperako, wama cartridge a MM. Ndipotu, kulowetsa koteroko ndi kokwanira kwa 95% ya ogwiritsa ntchito analogi, ndipo mwina theka la ogwiritsa ntchito analogi mu machitidwe apamwamba - pafupifupi aliyense amafuna turntable lero, koma anthu ochepa amathamangitsa phokoso lake pamtengo wapamwamba. Komabe, mkhalidwe wotero (mmodzi yekha mwa asanu) ndi wokhumudwitsa pang'ono. Kufanana koyambira kwa MM, ngakhale poyambira bwino kusewera ndi analogi, sikungapweteke amplifier aliwonse ophatikizika, otsika mtengo kapena okwera mtengo.

Gato Audio DIA-250S - yamakono, yokhala ndi gawo la digito (USB, coaxial ndi zolowetsa kuwala), ngakhale ndi kuwonjezera kwa Bluetooth, koma popanda phono kulowetsa ndi kutulutsa mutu.

Kutulutsa kwamakutu

Zikuwoneka kuti munthawi yakutchuka kwa mahedifoni, amplifier yophatikizika iyenera kukhala ndi zotulutsa zoyenera. Ndipo komabe… Ma model awiri okha anali nawo. Apa, kulungamitsidwa (kofooka) kulinso lingaliro logwiritsa ntchito zida zapadera, pakadali pano amplifiers am'mutu, omwe angapereke phokoso labwino kwambiri kuposa dera lochepetsetsa lomwe limapangidwa mu amplifier yophatikizidwa. Komabe, ogwiritsa ntchito ambiri ngakhale okwera mtengo kwambiri, kuphatikiza ma amplifiers ndi zokuzira mawu, amatengera mahedifoni ngati njira ina, njira yomvera yosunga zosunga zobwezeretsera, samawononga ndalama zambiri pa iwo, ndipo ngakhale zochepa safuna kuwononga ndalama zambiri pamutuwu wapadera. ... Amangofuna kulumikiza mahedifoni awo "kwina" mahedifoni (osaphatikiza zida zonyamula).

bulutufi

Bluetooth imachokera ku parishi yosiyana kwambiri. Imodzi mwa amplifiers asanu ilinso ndi izo, ndipo ndithudi ndi imodzi mwa ziwiri zomwe zili ndi gawo la digito. Pachifukwa ichi, sizokhudza "kutsegula" kuzinthu zina zamtundu wapamwamba, koma zamakono mu gawo la kulankhulana, ngakhale kuti khalidweli ndi lochepa kwambiri ndi magawo a Bluetooth mulingo wokha; Sichowonjezera cha audiophile, koma simuyenera kuchigwiritsa ntchito. Ndipo kachiwiri - chida chamtunduwu (ngakhale chingakhale choyesa komanso chothandiza kwa ambiri) chimawonekeranso muzokulitsa zotsika mtengo. Chifukwa chake ngakhale ndizosowa, sizokopa zomwe timayenera kulipira PLN 20. zloty...

Zolemba za XLR

Tiyeni titchulenso sockets zamtundu wa XLR (zoyenera), zomwe pamapeto pake zimakhala chinthu chazida zomwe nthawi zambiri zimapezeka mu amplifiers okwera mtengo kuposa otsika mtengo. Mitundu yonse isanu ya mayeso otchulidwawa ili ndi zolowetsa za XLR (komanso pa ma RCA "okhazikika"), ndipo atatu alinso ndi zotulutsa za XLR (kuchokera pagawo loyambira). Kotero zikuwoneka kuti kwa amplifier kwa 20 zikwi. PLN ingakhale chilema, kusowa kwazinthu zotere, ngakhale tanthauzo lake lothandizira likhoza kukambidwa. Palibe mwa ma amplifiers oyesedwa ma XLR sockets ndi gawo la zomwe zimatchedwa moyenera, kukulolani kuti mutumize ndi kukulitsa ma siginecha mozungulira bwino. M'mitundu yoyesedwa, chizindikiro chomwe chimaperekedwa ku zolowetsa za XLR nthawi yomweyo chimachotsedwa ndipo chimakonzedwanso mofanana ndi zizindikiro zomwe zimaperekedwa kuzinthu zosayenerera za RCA. Kotero pali ubwino wokhawo wa kutumiza chizindikiro mu mawonekedwe oyenerera (omwe, ndithudi, mumafunikanso chipangizo chochokera ndi XLR), chomwe sichimakhudzidwa ndi kusokonezedwa kwakunja. Komabe, izi ndizofunikira kwambiri pakulumikizana kwakutali komanso m'malo odzaza ndi zosokoneza - chifukwa chake ndizomwe zili muukadaulo wa studio, pomwe mumayendedwe a audiophile zimakhalabe "zokongola". Kuonjezera apo, zomwe zingathe kuchepetsa khalidweli, chifukwa maulendo owonjezera a desymmetrization (signal pambuyo polowetsa) angakhale gwero la phokoso lowonjezera. Samalani ndi kugwiritsa ntchito zolowetsa za XLR ndipo musaganize kuti apereka zotsatira zabwino.

Hegel H360 - kuthekera kwakukulu kwa gawo la digito (salandira PCM yokha kudzera pa USB, komanso mafayilo a Flac ndi WAV kudzera pa LAN). Tsoka ilo, apanso palibe cholowetsa chosinthira kapena chotulutsa chamutu.

menyu

Pokhapokha m'ma amplifiers okwera mtengo omwe nthawi zina timapeza ntchito zowonjezera, zokonzedwa muzosankha (pamodzi ndi zowonetsera zambiri kapena zochepa), kulola wogwiritsa ntchito kuyika chidwi cha zolowetsa payekha, kuwapatsa mayina awo, ndi zina zotero. sizofunika kuti aliyense akhale wosangalala, komanso sizikhala zovomerezeka ngakhale pakati pa amplifiers apamwamba. Chifukwa chake, m'gulu loyesedwa, palibe amene anali nawo, ngakhale kuti anayi anali ndi zowonetsera, koma kungowonetsa zidziwitso zoyambira (chizindikiro cha zomwe mwasankha, kuchuluka kwa voliyumu, komanso nthawi imodzi komanso kuchuluka kwa zitsanzo za chizindikiro cha digito choperekedwa, ndi nthawi imodzi yokha kuchuluka kwa voliyumu, koma kulondola kwapadera - mpaka theka la decibel).

Wolandira bwino?

Pofotokoza mwachidule gawo logwira ntchito, ma amplifiers oyesedwa ngati gulu sanasangalale ndi chilichonse, poganizira mitengo yawo. Zina mwazo ndizofunika kwambiri, zomwe, komabe, ndizokwanira kwa ma audiophiles ambiri, kaya akumanga kachitidwe ka "minimalist" (mwachitsanzo ndi CD player ndi zokuzira mawu okha) kapena okonzeka kugula zipangizo zapadera zogwirizana ndi zosowa zaumwini (DAC, phono). -siteji, chokulitsa chomverera m'makutu). "Zokhumudwitsa" za zomangamanga zomwe zafotokozedwa zikhoza kuwonjezeredwa kuti lero olandira AV akhoza kudzitamandira ndi zipangizo zabwino - ndi zipangizo zomwe zafotokozedwa pano, osawerengera zowonjezera zowonjezera zokhudzana ndi kukonza zizindikiro ndi phokoso la multichannel. Onse ali ndi zotulutsa zam'mutu, zonse zili ndi zosinthira za D / A (chifukwa ziyenera kukhala ndi zolowetsa digito, kuphatikiza USB), ambiri aiwo ali ndi zolowetsa za digito, zoyipitsitsa zokha zilibe ngakhale chosewerera chosavuta (kulowetsa kwa LAN), ndipo ambiri alinso osavuta, komabe - phono-siteji ...

Mfundo yakuti ma amplifiers onse oyesedwa amayendetsedwa kutali sikuyenera kutchulidwa, chifukwa ndi chinthu chofunikira lero.

Kuunika komaliza kwaubwino kukadali kotseguka. Pakatha mwezi umodzi tidzakambirana mabwalo amkati ndi magawo a gawo lofunika kwambiri - amplifiers amphamvu a zitsanzozi. Kupatula apo, monga momwe dzinalo likusonyezera, amplifier adapangidwa kuti azikulitsa ...