I-DAC Topping E30 - inkcazo, iinkcukacha, iimpawu
Inkampani yaseTshayina iTopping ngomnye wabadlali abaphambili kwimarike yezixhobo ze-hi-fi ezifumaneka kubathengi abaqhelekileyo. Ixabiso, umzekelo, kwi-DAC emileyo yolu phawu iqala kwi-110 yeedola. Kwaye umgangatho uxhaswa luphononongo oluninzi kunye nophononongo.
I-E30 ephezulu - yintoni na
I-DAC eyahlukileyo (idijithali ukuya kwi-analog converter) ayiqhelekanga. Naliphi na i-connoisseur yesandi esiphakamileyo sinokukwazi ukufumana isixhobo esinjalo, injongo yokuguqula isignali yedijithali kwi-analog, emva kokufika kweempawu zaseTshayina ezikhuphisanayo kwiimarike. Kwaye lowo ufuna ukujoyina, okanye zama nje into entsha.
Ukuba ngaphambili ii-DAC zangaphandle bezikwi-niche ethile, ngoku zizixhobo eziguquguqukayo ngenxa yobukho bojongano lwe-USB. Oku kubavumela ukuba baqhagamshelwe kwikhompyuter kunye nakwi-smartphone okanye kwithebhulethi. Ngokusisiseko, utshintsha ikhadi lesandi eliqhelekileyo langaphakathi ngeDAC usebenzisa i-analogue ekumgangatho ophezulu. Kwaye ikhompyuter yakho / i-smartphone isebenza njengomthombo (uhlala ugcina) womxholo womculo.
I-Topping E30 ithathwa njengenye yeemodeli eziphumelele kakhulu ngokwexabiso / umgangatho womgangatho. Imodeli inokuba yi-analogue ye-avareji eyaziwayo ye-Topping D50s kwicandelo lohlahlo lwabiwo-mali. I-DAC yazisa uluhlu olutsha lwenkampani, olukwabandakanya i-Topping L30 ye-headphone amplifier. Iindleko yi-150 yeedola.
DAC Topping E30: Iinkcukacha
| I-DAC IC | AK4493 |
| S / PDIF umamkeli | AK4118 / CS8416 |
| Umlawuli we-USB | XMOS XU208 |
| PCM inkxaso | 32bit 768kHz |
| Inkxaso yeDSD | DSD512 (Ngqo) |
| Eyakhelwe-in preamplifier | ukuba |
| Inkxaso yolawulo olukude | Ewe (ibandakanyiwe kude) |
Uphononongo oluphezulu lwe-E30 DAC
I-Topping E30 yintsimbi encinci ecocekileyo "ibhokisi" enokulinganisa kuphela i-100x32x125mm (WHD) engwevu, emnyama, ebomvu okanye eluhlaza okwesibhakabhaka.
Ngaphambili kukho iqhosha lokucofa lomkhethi wegalelo (ukutshintsha), ikwaliqhosha lokutshintshela kwimo yokulinda, xa libanjiwe. Kwaye kwakhona isikrini esibonisa igalelo elikhethiweyo kunye nefrikhwensi yangoku yesiginali yesandi. Oku kunokuba luncedo ekujongeni ukuchaneka komqondiso ogqithisiweyo kunye nesethingi yemvelaphi yakho.
Ngasemva kukho iziphumo zeRCA ("tulips") zeamplifier, i-digital coaxial kunye ne-optical S / PDIF inputs, igalelo le-USB lohlobo lwe-B, kunye nesixhumi samandla.
Inqwaba sele ibandakanya intambo ye-USB-B eqinileyo yokuqhagamshela isixhobo kumthombo wophawu. Kwakhona kubandakanywa nolawulo olukude, ikhadi lewaranti, incwadi yomsebenzisi kunye nentambo yamandla.
I-DC / USB-Amandla ombane ikuvumela ukuba usebenzise zombini ikhompyuter / ilaptop kunye nezixhobo zangaphandle njengomthombo. Ukuqala ekuhlawuleni i-smartphone kunye ne-PowerBank, iphele ngeyunithi yokubonelela ngombane.
Ukuzaliswa kwenziwa ngu:
- DAC IC AK4493 ukusuka Asahi Kasei. Inguqulelo entsha ye-premium AK4490 exhasa iPCM 32bit 768kHz kunye neefomathi zeDSD
- Umamkeli i-AK4118 yokusetyenzwa komqondiso ukusuka kwigalelo le-S / PDIF. Kwiinguqulelo zamva, yatshintshwa yi-CS8416 esuka kwi-Cirrus Logic. Kubonakala ukuba ngenxa yokungabikho chips ukusuka Asahi Kasei.
- Umlawuli we-USB XMOS XU208.
Ukuvavanya i-Topping E30 kwizibonelelo ezahlukeneyo
I-Topping idume ngokuthumela imilinganiselo yesandi saso sonke isixhobo esisenzayo kwiwebhusayithi yayo. Zenziwe kusetyenziswa iAudio Precision APx555 yokuhlaziya iaudio. Kwakhona, ezi datha zinokufumaneka kwincwadana ekhethekileyo eza kunye nesixhobo.
Okokuqala, oku kubonisa ukuba sinokujonga iimpawu zangempela zesixhobo. Ngaphandle kokuthembela kwizithembiso zomenzi, kwaye ngaphandle kokuwa kwiindlela ezahlukeneyo kunye namaqhinga. Ngaphezu koko, izixhobo ze-Topping zihlala zijongwa kwakhona kwisixhobo esaziwayo njenge-ASR (i-audiosciencereview). Apho iAudio Precision APx555 yokuhlaziya iaudio isetyenziselwa imilinganiselo.
Ngokusekwe kwiziphumo zomlinganiselo wabo bobabini umenzi kunye newebhusayithi ye-ASR, ezi zigqibo zilandelayo zinokuthathwa:
| Ubuninzi bomqondiso kwimilinganiselo, kHz | 1 |
| Amandla emveliso, Vrms | > 2 |
| Iyonke iHarmonic Distortion + ingxolo (THD + N),% | <0.0003 |
| Ubungakanani bomqondiso kwingxolo (SINAD), dB (ngokwe ASR) | ~ 114 |
| Ubungakanani bomqondiso kwingxolo (SNR), dB (ngumenzi) | 121 |
| Uluhlu lweDynamic, dB | ~ 118 |
| Uluhlu olungaphazamisiyo (i-multitone), bit | 20-22 |
| Jitter, dB | <-135 |
Ijitha xa iqhagamshelwe ngojongano lwe-S / PDIF iphezulu kancinci. Nangona kunjalo, iincopho ziku-120 dB, nto leyo engabalulekanga.
Iimpawu zeDAC Topping E30
Olona phawu luphambili lweTopping E30 bubukho bedijithali S / PDIF igalelo kujongano oluqhelekileyo "lomthengi". I-COAX (i-RCA, i-coaxial) kunye ne-TOSLINK (i-optical), evumela ukuba udibanise nayiphi na ifowuni kunye nemveliso yedijithali kuyo. Ukusuka kwiTV nakwisidlali semidiya ukuya kwiCD player endala ukusukela kwiminyaka yoo-80s.
Olunye uphawu yi-preamplifier eyakhelwe-ngaphakathi, evumela i-DAC ukuba idibaniswe ngokuthe ngqo kwi-amplifier yamandla. Nangona, rhoqo, eli nqaku lisetyenziselwa ukulungisa isandi ukusuka kulawulo olude. Ukuba akukho nanye kwi-amplifier "epheleleyo", esetyenziswa rhoqo ngabathandi bomculo.
Olu phawu lunemiqobo yalo. Oko kukuthi, ilahleko yomthamo wesiginali yemveliso. Nangona kunjalo, oku akuthethi ukuhla komgangatho wesandi. Kuba yonke into iya kuxhomekeka kwimeko ethile kunye nezicwangciso zenkqubo yomsindo.
I-microcircuit ye-AK4493 inezihlungi ze-6 zesandi kwi-PCM kunye ne-2 ye-DSD yokunceda ukutshintsha kancinci iinkcukacha zesandi.
Ngelishwa, le misebenzi ifumaneka kuphela kwisilawuli kude. Kwaye oku kunokubonakala kungathandeki kwabo bane-DAC ecaleni kwekhompyuter okanye ilaptop.
Iianalogs DAC Topping E30
Umahluko omkhulu phakathi kwe-Topping E30 kunye nezixhobo ezingabizi kakhulu kubukho bamagalelo e-S / PDIF njengakwi-"classic" yeDAC. Ngokomzekelo, kwimodeli ye-Topping D10s, ujongano lwedijithali lusebenza njengeziphumo. Oko kukuthi, esi sixhobo sinokusetyenziswa njengesiguquli se-USB. Ukulungiswa komqondiso kwi-S / PDIF yokutyisa kwenye iDAC. Nangona, kukho amathandabuzo okuba umsebenzisi oqhelekileyo angayifuna. I-Topping D10s ithathwa njenge-USB DAC kuphela. Njengezixhobo ezininzi ngexabiso elingaphantsi. Ke, ukuba ubukho be-S / PDIF igalelo libalulekile, ke i-E30 lukhetho olunenzuzo.
Ngokutsho kwesampulu evela kwi-shenzhenaudio.com (izixhobo ezixabisa ngaphantsi kwe-$ 150), i-XDUOO MU-601 DAC isebenzisa i-chip chip ye-ES9018K2M. Kodwa akukho ngeniso yedijithali (kuphela i-coaxial evela kwiziphumo). I-FX Audio D01 DAC sele isekwe kwitshiphu ye-ES9038Q2M yamva nje. Ukhwele i-Bluetooth receiver kunye nenkxaso ye-codec ye-LDAC kunye nesandisi se-headphone esakhelwe ngaphakathi. Apha sele sine "combine" epheleleyo.
Kodwa ngokuqwalasela ii-DACs zabanye abavelisi, kufuneka ubeke ingqalelo ekusebenziseni amanye amacandelo. Ngaphezu koko, ubuchule bokujikeleza obuhlukeneyo, kwaye, ngokufanelekileyo, kwezinye izikhombisi. Ngaphezu koko, akunakwenzeka ukuba ukudibanisa kwexabiso elifanayo kuya kuvelisa isandi sale nqanaba, emva koko, kunesicelo esahlukileyo.
Enye indlela enomdla yiSanskrit 10th MKII evela kolunye uphawu lwaseTshayina olwaziwayo, iSMSL. Isekelwe kwi-chip efanayo ye-AK4493. Kodwa ilahlekelwa (ngokwe-ASR), xa kuthelekiswa ne-multitone kunye ne-jitter, ngakumbi ngamandla kwi-S / PDIF. Ngubani ophethe iS / PDIF ukusetyenzwa komqondiso kuhlala kuyimfihlakalo. Ngesizathu esithile, umenzi akazange abonise oku. Nangona kunjalo, kufuneka kuqatshelwe ukuba esi sixhobo sikwanalo ulawulo olude. Kukho imowudi ye-preamp kunye nezihluzo zomsindo ezakhelwe ngaphakathi. Uyilo olungekho mgangathweni, hayi wonke umntu. Isikrini sithobeke ngakumbi.
Izigqibo kwi-Topping E30
Ukuqukumbela, kukhuselekile ukuthi ukusebenza kwayo okugqwesileyo kwe-sonic, inkxaso yefomathi ebanzi kunye noyilo oluyilwe kakuhle kwenza i-Topping E30 ibe yenye yee-DAC ezimileyo kuluhlu lwayo lwamaxabiso.
Ukuba ufuna ukuthenga i-Topping E30 kumthengisi othembekileyo, yiya kwi-AliExpress kwi esi sixhobo... Uphononongo olunye, uya kufunda malunga nemveliso kunye nomthengisi.