DAC yapakati pa $ 300 yomwe imachita zonsezi? Pafupi.
Zikuwoneka ngati zaka zingapo, otembenuza digito ndi analog akudutsa mwa kusintha. Zaka zingapo zapitazo onse anawonjezera USB. Pa Rocky Mountain ya Year Audio Fest , tinawona ma DAC ambiri - ngakhale imodzi yosachepera $ 400 - kuwonjezera kuwonetsera kwa Direct Stream Digital (DSD). Chotsatira ndi chiyani? Mwinamwake HDMI . Pokhala ndi kusintha kwakukulu kukuchitika, mukhoza kupanga mlandu wabwino kuti mutenge chinthu chabwino komanso chotheka m'malo mofunafuna chuma chambiri. Ndi pamene V90-DAC imabwera.
Kukhulupirika kwachimake kunamanga $ 299 V90-DAC monga gawo la V90 mzere, zigawo zitatu zochepa mtengo, zopanda frills zomwe zimapangidwa kwa audiophiles omwe akufuna kupereka pang'ono pokha pazinthu zabwino koma safuna kugwiritsa ntchito ndalama iliyonse chifukwa cha chikhalidwe.
Mbali ya kumbuyo imakhala ndi zipangizo zinayi zamagetsi: USB yosakanikirana, coaxial RCA, ndi mawonekedwe awiri a Toslink. Zotsatira zimapezeka pa jacks la RCA stereo. Mbali yam'tsogolo ili ndi kusintha kwa mphamvu komanso zopindulitsa.
Kotero chiyani chikusowa? Zinthu ziwiri. Chimodzi, pulogalamu ya USB imalandira mawonekedwe a digito mpaka chiganizo cha 24-bit / 96-kilohertz; Sichidzavomereza 192-kilohertz high-res audio, koma ma DAC ambiri mu mtengo wamtengowu sungatero. Mungathe kuchita 24/192 kupyolera muzowonjezera, koma ngati mukukoka mafayilo pa kompyuta, mufunika adapirati ya USB-to-coax. V90-DAC imapanga chitsanzo chonse mpaka 24/192. Ndipo ngati muli ndi mafayilo 24/192 pa kompyuta yanu, adzalimbiranso, koma kompyuta idzawachepetsera mpaka 24/96. Ndiponso, V90-DAC ilibe chovala cha headphone, chomwe chiri choyimira chomwe inu mungachifune kapena simukuchifuna, koma chikupezeka pa ma DAC ambiri masiku ano.
Mawonekedwe
• USB yosakanikirana, coax RCA ndi 2 Toslink
• Kuchokera kwa RCA Stereo
• Amavomereza zizindikiro mpaka 24/192 pogwiritsa ntchito coax
• Amalandira zikwangwani mpaka chisankho cha 24/96 kupyolera mu USB
• Miyeso: 1.9 x 6.7 x 4 mu / 47 x 170 x 102 mm
• Kunenepa: 1.3 lb / 0.6 kg
Kukhazikitsa / Ergonomics
Palibe chofunika kwambiri apa. Dulani muzowonjezeramo mphamvu zowonjezeramo, gwiritsani ntchito zinthu zonse zamagetsi, kugwirizanitsa V90-DAC ku preamp kapena wolandila, ndipo khalani nawo. Makompyuta a makompyuta a HP, IBM ndi Toshiba amene ndinagwiritsa ntchito ndi V90-DAC anazindikira mwamsanga.
Ndinkakonda kukhala kosavuta kukhala ndi chosankha chosankha chotsatira mmalo mwa batani ambiri a DAC akugwiritsa ntchito kupyolera muzolowera. Koma ndikukhumba kuti V90-DAC ikhale ndi pulojekiti ya patsogolo ya USB kuti ikhale yosavuta kulumikiza laputopu yanga.
Kuchita
Kwa masabata angapo, ndimagwiritsa ntchito V90-DAC ndekha monga gwero lalikulu la digito m'dongosolo langa, ndikuligwiritsira ntchito pa pulogalamu yanga ya Panasonic Blu-ray ndi laputopu la Toshiba lomwe ndimagwiritsa ntchito nyimbo zanga zambiri. Ndinagwiritsa ntchito ma Krell S-300i amp integrated ndi ma seti awiri oyankhula: my Revel Performa3 F206s ndi zina B & W CM10.
Ndikayika V90-DAC m'malo mwa Firestone Audio ILTW USB-yekha DAC (yomwe sioneka kuti ikupezekabe koma yomwe ndikuganiza kuti idawonongeka pafupifupi $ 399), sindinganene kuti ndazindikira kusintha kwina kulikonse khalidwe. Koma dongosololi linamveka bwino kwambiri.
Ndinazindikira zonse zomwe ndakhala ndikuzifufuza poyesera zamagetsi. Kuomba, zida zopanda malire mu "Nyimbo ya Sitima Cole" ya Holly Cole inayendayenda m'chipinda chonse, kuthamanga kutali kumanzere kwa wokamba mawu akumanzere ndi kutali kudzanja lakulankhulayo. Ma castanets ku The Coryells '"Sentenza del Cuore: Allegro" amaoneka kuti amachokera pafupi mamita 25 pambuyo pa okamba. Monga momwe zonsezo zikufunira.
Kotero kwa kanthawi, ndinangochoka ku V90-DAC mudongosolo langa, ndikusangalala ndi chilichonse chimene ndinkasewera, kuchokera ku CD ya Guary 's Guided Tour to Pacific Rim yomwe imachokera ku Vudu kupita ku TV yomwe imapezeka nthawi zonse kuchokera ku Amazon Instant Video.
Yep, V90-DAC inamveka bwino, koma zabwino bwanji? Kuti ndidziwe, ndikuyesa khungu, pogwiritsa ntchito chizolowezi changa choyesedwa. Ndinafanizira V90-DAC ku Firestone Audio ILTW ndi Mwezi wa Simaudio 100D DAC. (poyamba $ 649, tsopano $ 399). Ndinafaniziranso V90-DAC kumalo otengera a Panasonic Blu-ray player. Mayesero onsewa anali akhungu - ndimadziwa kuti ndikusewera DAC # 1, # 2 kapena # 3, ndipo kenako ndikudziwa kuti ndi yani. Zonsezi zinali zofanana ndi 0.1 dB pogwiritsa ntchito kusintha kwamasinthane.
Zonse za DACs zinamveka bwino. Ndinaimba nyimbo ziwiri zoyambirira, sindimamva kusiyana kwakukulu pamene ndikusintha kuchokera kumodzi kupita kumalo. (Ichi chinali kugwiritsa ntchito mafayilo 16-bit / 44.1-kilohertz akuchotswa ku CD.) Koma nditadula pang'ono, ndinayamba kuzindikira kuti mmodzi wa iwo akuwoneka bwino mkatikatikati mwa midrange, osakhala ndi mawu ocheperapo kapena omveka bwino. Zina zinkafanana kwambiri koma sizing'onozing'ono pakatikati Pakati lachitatu linali losalala kwambiri; kumvetsera kwanga, zimawoneka kuti zimapangitsa mawu kukhala opanda khalidwe lopanda pake, mwinamwake mosasamala mwatsatanetsatane ndi "mpweya."
Kotero ndi yani yomwe inali? Kutembenuza V90-DAC kumenyana ndi 100D pang'onopang'ono, pamene zonsezi zikumveka bwino kuposa ILTW.
Poyerekeza ndi DAC yomwe ili m'kati mwa pulogalamu ya Panasonic Blu-ray - yomwe, ndiyenera kunena, sizinali zoyipa - V90-DAC inafotokoza zambiri, makamaka pamtunda ndi midrange wapamwamba, kupanga Blu-ray DAC ya DAC imakhala yochepa poyerekezera ngakhale pamene ndimagwiritsa ntchito olankhula B & W okondwerera kwambiri.
Ndisanayambe, ndiyenera kunena kuti kusiyana pakati pa ojambula a digito ndi a analog kawirikawiri siwowoneka kodabwitsa, koma ali kumeneko, ndipo ngati kuli kofunikira kwambiri kwa inu, ndikuganiza kuti ndiyenera kulipira ndalama pang'ono kuti ndikuthandizire kuchokera ku DAC yopangidwa mu kompyuta yanu, CD, DVD kapena Blu-ray player ku DAC yabwino, yotsika mtengo ngati V90-DAC.
Ndikuzindikiranso kuti ngati muli ndi malingaliro okhudza kugwiritsa ntchito V90-DAC ndi A / V receiver, ndikupemphani kuti muiwale. Ngakhale pali ovomerezeka a A / V ndi mawonekedwe enieni a analoji ozungulira, ambiri amasintha zizindikiro zonse za analoji zikubwera mwa iwo. Muli bwino kugwirizanitsa chipangizo chanu chachinsinsi mwachindunji kwa wothandizira pogwiritsa ntchito kulumikiza kwa digito kusiyana ndi momwe mungakhalire mutembenuza chizindikiro kwa analog ndi V90-DAC ndikuyitembenuzira ku digito kachiwiri mkati mwa wolandira.
Miyeso
Ndinayambanso kuthamanga maulendo angapo afupipafupi pa V90-DAC, pogwiritsa ntchito Audio Precision System One Dual Domain analyzer. Nazi zotsatira. Pokhapokha atatchulidwa, mayeso onse adatengedwa pa 1 kHz.
Kuyankha kwafupipafupi: -0.05 dB @ 20 Hz, -0.30 dB @ 20 kHz
Chiŵerengero chakumva-phokoso: -112.8 dB osadziwika
Crosstalk: -99.9 dB LR ndi RL
Max zotsatira: 2.15 volts RMS
Phokoso la THD, max output: 0.008%
Palibe mwa zotsatira izi zabwino kwambiri monga wopanga malingaliro, koma mwatcheru podziwa kuti sindimayesa miyeso yambiri ya mafilimu akunja ndipo ndilibe zipangizo zamakono komanso zazikulu kwambiri.
Kutenga Kotsiriza
V90-DAC ndi DAC yokoma kwambiri chifukwa cha mtengo wake, njira yabwino kwambiri yopezera zenizeni zenizeni za stereo zamagetsi kuchokera kumsika wamasewero a Blu-ray, satellite receiver kapena cable box, kapena kompyuta laputopu.
Ngati mukugwiritsira ntchito, nenani, mutu wa makompyuta wa kompyuta yanu kuti mugwirizane ndi dongosolo lanu la stereo, kapena ngati mukugwiritsa ntchito DVD kapena Blu-ray player kusewera ma CD, ndikupempha V90-DAC kukhala yosavuta, Njira yotsika mtengo, yopambana kwambiri yomasulira dongosolo lanu.