I-DAC Topping E30 - Uhlolojikelele, imininingwane, izici

Inkampani yaseShayina i-Topping ingomunye wabadlali abaphambili emakethe yemishini ye-hi-fi etholakala kubathengi abajwayelekile. Intengo, ngokwesibonelo, ye-DAC emile yalo mkhiqizo iqala ku-$ 110. Futhi ikhwalithi isekelwa ukubuyekezwa nokubuyekezwa okuningi.

 

I-Topping E30 - kuyini

 

I-DAC ehlukile (i-digital to analog converter) ayijwayelekile. Noma yimuphi uchwepheshe womsindo wekhwalithi ephezulu angakwazi ukukhokhela idivayisi enjalo, inhloso yayo ukuguqula isignali yedijithali ku-analog, ngemva kokufika kwemikhiqizo yaseShayina ekhuphisanayo emakethe. Futhi lowo ofuna ukubajoyina, noma vele uzame into entsha.

Uma ama-DAC angaphandle angaphambili ethathe indawo ethile, manje angamadivayisi aguquguqukayo ngenxa yobukhona besixhumi esibonakalayo se-USB. Lokhu kuzivumela ukuthi zixhunywe kukhompuyutha kanye ne-smartphone noma ithebhulethi. Ngokuyisisekelo, ushintsha ikhadi elijwayelekile lomsindo wangaphakathi nge-DAC usebenzisa i-analogue yayo yekhwalithi ephezulu. Futhi ikhompuyutha/i-smartphone yakho isebenza njengomthombo (imvamisa ukugcinwa) kokuqukethwe komculo.

 

I-Topping E30 ibhekwa njengenye yamamodeli aphumelele kakhulu ngokwezinga lentengo / lekhwalithi. Imodeli ingase ibe i-analogue ye-avareji ye-Topping D50s eyaziwayo engxenyeni yesabelomali eyengeziwe. I-DAC yethula uhlelo olusha lwenkampani, oluhlanganisa ne-Topping L30 headphone amplifier. Izindleko ngu-$150.

 

I-DAC Topping E30: Imininingwane

 

I-DAC IC	AK4493
Isitholi se-S / PDIF	AK4118 / CS8416
Isilawuli se-USB	I-XMOS XU208
Ukusekelwa kwe-PCM	I-32bit 768kHz
Ukusekelwa kwe-DSD	I-DSD512 (Direct)
I-preamplifier eyakhelwe ngaphakathi	Yebo
Ukwesekwa kwesilawuli kude	Yebo (kufakwe isilawuli kude)

 

Ukubuyekezwa kwe-E30 DAC ephezulu

 

I-Topping E30 "ibhokisi" elincane lensimbi elihlanzekile likala kuphela u-100x32x125mm (WHD) ompunga, omnyama, obomvu noma oluhlaza okwesibhakabhaka.

Ngaphambili kunenkinobho yokuthinta yesikhethi sokufaka (ukushintsha), kuphinde kube yinkinobho yokushintshela kumodi yokulinda, uma ibanjiwe. Futhi isikrini esibonisa okokufaka okukhethiwe kanye nemvamisa yamanje yesiginali yomsindo. Lokhu kungaba usizo ekuhloleni ukulunga kwesignali edlulisiwe kanye nezilungiselelo zomthombo wakho.

 

Ngemuva kunemiphumela ye-RCA ("tulips") yeamplifier, okokufaka kwe-digital coaxial nokubonayo kwe-S / PDIF, okokufaka kwe-USB kohlobo B, nesixhumi samandla.

Inqwaba isivele ihlanganisa ikhebuli eqinile ye-USB-B yokuxhuma idivayisi kumthombo wesignali. Kufakwe nesilawuli kude, ikhadi lewaranti, imanuwali yomsebenzisi nekhebula lamandla.

Ukunikezwa kwamandla kwe-DC/USB-A kukuvumela ukuthi usebenzise kokubili ikhompuyutha/ilaptop kanye namadivayisi angaphandle njengomthombo. Iqala ekushajelweni kwe-smartphone ne-PowerBank, iphethe ngeyunithi yokuphakela amandla ngomugqa.

 

Ukugcwaliswa kwenziwa ngu:

 

• I-DAC IC AK4493 evela ku-Asahi Kasei. Inguqulo entsha ye-premium AK4490 esekela i-PCM 32bit 768kHz namafomethi e-DSD
• Isamukeli se-AK4118 sokucubungula isignali kusuka kokokufaka kwe-S / PDIF. Ezinguqulweni zakamuva, yathathelwa indawo yi-CS8416 evela ku-Cirrus Logic. Ngokusobala ngenxa yokuntuleka kwama-chips avela ku-Asahi Kasei.
• Isilawuli se-USB XMOS XU208.

 

Ukuhlola i-Topping E30 kuzinsiza ezahlukene

 

I-Topping idume ngokuthumela izilinganiso zomsindo zayo yonke idivayisi eyenzayo kuwebhusayithi yayo. Zenziwe kusetshenziswa isihlaziyi somsindo se-Audio Precision APx555. Futhi, le datha ingatholakala ebhukwini elikhethekile eliza nedivayisi.

 

Okokuqala, lokhu kuphakamisa ukuthi singabheka izici zangempela zedivayisi. Ngaphandle kokuthembela ezithembisweni zomenzi, futhi ngaphandle kokuwela amaqhinga namaqhinga ahlukahlukene. Ngaphezu kwalokho, amadivayisi we-Topping avame ukubuyekezwa kusisetshenziswa esaziwayo njenge-ASR (audiosciencereview). Lapho i-Audio Precision APx555 yokuhlaziya umsindo isetshenziselwa izilinganiso.

Ngokusekelwe emiphumeleni yokulinganisa yakho kokubili umenzi kanye newebhusayithi ye-ASR, kungafinyelelwa esiphethweni esilandelayo:

 

Imvamisa yesignali yezilinganiso, kHz	1
Amandla okukhipha, Vrms	> 2
Ingqikithi Yokuhlanekezeka Kwe-Harmonic + Noise (THD + N),%	<0.0003
Isiginali kumsindo wesilinganiso (SINAD), dB (ngokuya nge-ASR)	~ 114
Isilinganiso sesignal to noise ratio (SNR), dB (ngokomkhiqizi)	121
Ibanga elinamandla, dB	~ 118
Ibanga elingahlanekezeli (i-multitone), ibhithi	20-22
Jitha, dB	<-135

 

I-jitter uma ixhunywe ngesixhumi esibonakalayo se-S / PDIF iphakeme kancane. Kodwa-ke, iziqongo ziku-120 dB, okungabalulekile.

 

Izici ze-DAC Topping E30

 

Isici esiyinhloko se-Topping E30 ubukhona bokufakwa kwedijithali kwe-S / PDIF kuma-interfaces "abathengi" ajwayelekile. I-COAX (RCA, coaxial) ne-TOSLINK (i-optical), ekuvumela ukuthi uxhume noma iyiphi idivayisi enokuphumayo kwedijithali kuyo. Kusukela ku-TV nesidlali semidiya ukuya kusidlali se-CD esidala kusukela ngeminyaka yawo-80s.

 

Esinye isici i-preamplifier eyakhelwe ngaphakathi, evumela i-DAC ukuthi ixhunywe ngokuqondile ku-amplifier yamandla. Nakuba, ngokuvamile, lesi sici sisetshenziselwa ukulungisa umsindo ovela kusilawuli kude. Uma kungekho ku-amplifier "egcwele", evame ukusetshenziswa abathandi bomculo.

Lesi sici sinezinkinga zaso. Okungukuthi, ukulahlekelwa umthamo wesiginali yokuphumayo. Nokho, lokhu akusho ukuwohloka kwekhwalithi yomsindo. Ngoba konke kuzoncika esimweni esithile kanye nezilungiselelo zesistimu yomsindo.

 

I-microcircuit ye-AK4493 inezihlungi eziyisi-6 zomsindo ebhodini ze-PCM nezi-2 ze-DSD ukusiza ukushintsha kancane imininingwane yomsindo.

 

Ngeshwa, le misebenzi itholakala kuphela kusilawuli kude. Futhi lokhu kungase kubonakale kuphazamisa ngandlela thize kulabo abane-DAC eduze kwekhompyutha noma i-laptop.

 

Ama-analogues e-DAC Topping E30

 

Umehluko omkhulu phakathi kwe-Topping E30 namadivayisi ashibhile ukuba khona kokokufaka kwe-S/PDIF njengaku-DAC "yakudala". Isibonelo, kumodeli ye-Topping D10s, ukuxhumana kwedijithali kusebenza njengokuphumayo. Okusho ukuthi, le divayisi ingasetshenziswa njengesiguquli se-USB. Ukuze kucutshungulwe isignali ku-S / PDIF yokuphakela kwenye i-DAC. Nakuba, kunokungabaza ukuthi umsebenzisi ojwayelekile angase ayidinge. I-Topping D10s ithathwa njenge-USB DAC ngokukhethekile. Njengamadivayisi amaningi ngentengo ephansi. Ngakho-ke, uma ukuba khona kokufakwayo kwe-S / PDIF kubalulekile, khona-ke i-E30 iyisinqumo esihle.

Ngokwesampula evela ku-shenzhenaudio.com (amadivayisi anenani elingaphansi kuka-$150), i-XDUOO MU-601 DAC isebenzisa i-chip yeselula ye-ES9018K2M. Kodwa akukho okokufaka kwedijithali (kuphela i-coaxial evela emiphumeleni). I-FX Audio D01 DAC isivele isekelwe ku-chip yakamuva ye-ES9038Q2M. Inesamukeli se-Bluetooth esisekelwa ikhodekhi ye-LDAC kanye neamplifier eyakhelwe ngaphakathi. Lapha sesivele sinayo yonke "inhlanganisela".

 

Kodwa uma ucabangela ama-DAC avela kwabanye abakhiqizi, kufanele unake ukusetshenziswa kwezinye izingxenye. Futhi, inqubo yesifunda ehlukile, futhi, ngokufanele, kwezinye izinkomba. Ngaphezu kwalokho, akunakwenzeka ukuthi inhlanganisela yentengo efanayo izokhiqiza umsindo waleli zinga, ngemva kwakho konke, inesicelo esihlukile.

 

Enye indlela ethokozisayo i-Sanskrit 10th MKII evela kolunye uhlobo lwamaShayina olwaziwayo, i-SMSL. Isekelwe ku-chip efanayo ye-AK4493. Kodwa ilahlekelwa (ngokusho kwe-ASR), uma iqhathaniswa ne-multitone ne-jitter, ikakhulukazi ku-S / PDIF. Ubani ophethe ukucutshungulwa kwesignali ye-S / PDIF kuseyimpicabadala. Ngesizathu esithile, umenzi akazange abonise lokhu. Kodwa-ke, kufanele kuqashelwe ukuthi lolu cingo luphinde lube nesilawuli kude. Kukhona imodi ye-preamp kanye nezihlungi zomsindo ezakhelwe ngaphakathi. Idizayini engajwayelekile, hhayi eyawo wonke umuntu. Isikrini sinesizotha kakhulu.

 

Iziphetho ku-Topping E30

 

Sengiphetha, kuphephile ukusho ukuthi ukusebenza kwayo okuhle kakhulu kwe-sonic, ukwesekwa kwefomethi ebanzi kanye nomklamo oklanywe kahle kwenza i-Topping E30 ibe ngelinye lama-DAC amile angcono kakhulu ebangeni lawo lamanani.

 

Uma ufuna ukuthenga i-Topping E30 kumdayisi owethembekile, vakashela ku-AliExpress kokuthi lesi sixhumanisi... Ukuze uthole isibuyekezo esisodwa, uzofunda ngomkhiqizo kanye nomthengisi.