A sub-$ 300 DAC inoita zvose? Almost.
Zvinoratidzika semakore ose emakore, vatori vedijitori-analogo vanofamba kuburikidza nekuvandudza. Makore mashoma akapfuura vose vakawedzera USB. Pagore reRedy Mountain Audio Audio Fest , takaona DAC dzakawanda - kunyange imwe yepasi pemadhora mazana mana - kuwedzera Direct Stream Digital (DSD) yakagadziriswa kutamba. Chii chinotevera? Zvichida HDMI . Nekuchinja kwakanyanya kuenderera mberi, unogona kuita mhaka yakanaka yekungotenga chimwe chinhu chakanaka uye chisingakwanisi kunzvimbo yekushandisa mari yakawanda yekudzingirira zvose zvitsva. Ndiko apo V90-DAC inopinda.
Musical Fidelity yakagadzira $ 299 V90-DAC sechikamu cheV90 mutsara, chetatu yezvinhu zvisingabhadhari, zvisiri-frills zvakagadzirirwa veseopolisi vanoda kushandisa mari shoma pane chimwe chinhu chakanaka asi vasingadi kushandisa mari imwe neimwe yekupedzisira for state-of-the-art.
Pamberi penhare ine zvigadziro zvina zvemadhini: asynchronous USB, coaxial RCA, uye maviri Toslink optical. Zvitsva zviri pa stereo RCA jacks. Pamberi pepakiti rine simba uye maitiro ekugadzirisa.
Saka chii chiripo? Zvinhu zviviri. Imwe, inonzi USB inogamuchira zviratidzo zvejeri kusvika ku 24-bit / 96-kilohertz chisarudzo; hazvizogamuchiri 192-kilohertz high-res audio, asi zvakawanda zveDAC mumutengo wemutengo uyu hazviiti. Iwe unogona kuita 24/192 kuburikidza nehuwandu hwekuita, asi kana uri kukwevera mafaira kubva kombiyuta, unoda USB-to-coax adapta. V90-DAC inoita upsample zvose kusvika 24/192, zvakadaro. Uye kana une mafaira 24/192 pamakombiyuta yako, acharamba achivamba, asi kombiyuta ichadzikisa pasi kusvika 24/96. Uyewo, V90-DAC haina kambani jekoni, iyo inenge yaunogona kana inenge isingadi, asi inowanikwa pane dzakawanda dzeDAC mazuva ano.
Zviratidzo
• USB yakawanda, coax RCA uye 2 Toslink inoputswa
• Stereo RCA yakawanikwa
• Kugamuchira zviratidzo kusvika kusarudzo ye 24/192 kuburikidza ne coax
• Inogamuchira zviratidzo kusvika kusarudzo ye 24/96 kuburikidza ne USB
• Kuyera: 1.9 x 6.7 x 4 mu / 47 x 170 x 102 mm
• Kurema: 1.3 lb / 0.6 kg
Kugadzira / Ergonomics
Hapana chinhu chakanaka chinofanira kucherechedza apa. Ivhara muvharo rakasanganiswa-rwonzi, gadzirai zvinhu zvose zvejjidhi, shandisa V90-DAC kumutambo wako kana kugamuchira, uye uve nayo. Makombiyuta e HP, IBM uye Toshiba andakashandisa neV90-DAC akazviona nokukurumidza.
Ndaifarira kuve nyore kwekuita sarudzo yekuisa sarudzo panzvimbo yebhatani dzakawanda DAC dzinoshandisa kupukunyuka kuburikidza nemafungiro. Asi ndinoshuva kuti V90-DAC ine mberi kwekushandisa USB kuitira kuti zvive nyore kuvhura laptop yangu.
Performance
Kwemavhiki mashomanana, ndakashandisa V90-DAC pachake seyo huru yekushandisa yedijiteni mumutambo wangu, ndichiisungira kuPanasonic Blu-ray player uye laptop yeToshiba yandinoshandisa kunyanya mimhanzi yangu. Ndakashandisa krell yangu S-300i yakasangana amp uye maiti maviri evatauri: my Revel Performa3 F206s uye mamwe B & W CM10s.
Pandinenge ndaisa V90-DAC panzvimbo ye Firestone Audio ILTW USB-chete DAC (iyo inenge isingaoneki iripo zvakare asi iyo yandinofunga inodhura madhora 399), handigoni kuti ndakacherechedza chero humwe humwe shanduko mu sonic character. Asi urongwa hwacho hwakaita zvakanaka chaizvo.
Ndakacherechedza zvose zvese zvinowanikwa zvakanaka zvandinotarisa kana kuongorora magetsi ehurukuro yaivapo. Izvo zvinonamatira, zvigadziriswa zvinoridzwa zvinoridzwa muHolly Cole's "Rwiyo Rwokudzidzisa" rwakananga kumativi ose, runomhanya kure kuruboshwe rwemukurukuri wekurudyi uye kure kusvikira kurudyi rwekutaura kwakarurama. Idzimba dzakaputika muThe Coryells '"Sentenza del Cuore: Allegro" yakaonekwa ichibva kune anenge anenge mamita makumi maviri shure kwevakataura. Sezvo zvese zvinofungidzirwa.
Saka kwechinguvana, ndangobva kuV90-DAC mumutambo wangu, ndichifadzwa nechinhu chipi nechipi chandakatamba kuburikidza nazvo, kubva kuVigraphonist Gary Burton's Guided Tour CD kusvika kuPacific Rim yakasimuka kubva kuVudu kuenda kumafirimu akangoerekana abuda kubva kuAmazone Instant Video.
Yep, iyo V90-DAC yakaratidza zvakanaka, asi yakanaka sei? Kuti ndiwane, ndinoisa mapofu epofu, ndichishandisa tsika yangu-yakagadzirirwa kuedza kuchinja switcher. Ndakafananidza V90-DAC kune Firestone Audio ILTW uye Simaudio Mwedzi 100D DAC. (pakutanga $ 649, ikozvino $ 399). Iniwo ndakafananidza V90-DAC kune analog inobva pane Panasonic Blu-ray player. Zvose izvi zvakaedzwa mapofu - ndaiziva chete kuti ndaive ndichitamba DAC # 1, # 2 kana # 3, uye gare gare ndakaona kuti ndeipi iyo. Zvose zvemazinga zvakaenzana kusvika 0.1 dB uchishandisa shandisi yekudzora mazinga.
Zvose zveDACs dzakaratidza zvakanaka. Nekutanga kwemitambo yandaitamba, ndakanga ndisinganzwisisi kusiyana kunonzwisisika pachinenge kubva kune imwe kuenda kune imwe. (Izvi zvaive zvichishandisa mafaira 16-bit / 44.1-kilohertz akabvarurwa kubva kuCD.) Asi mushure mekucheka kwechinguva, ndakatanga kuona kuti mumwe wavo aireruka mukati me midrange, asina kunyanya kusepy kana rough quality mumanzwi. Imwe yakanzwika yakafanana zvakanyanya asi tad shoma shoma mukati mamakore Chechitatu yakanga isina kunyatsonaka; munzeve dzangu, zvakaita sekutaura manzwi ane unhu husina kunyanyisa, zvimwe zvisinganzwisisi zvakadzama uye "mweya."
Saka ndeipi yaiva iyo? Inoita kuti V90-DAC irove 100D zvishoma, apo zvose zviri zviviri zvakanzwika zviri nani kupfuura ILTW.
Inofananidzwa neDB inowanikwa muPanasonic Blu-ray player - iyo, ndinofanira kutaura, yakanga isiri yakaipa zvachose - V90-DAC yakanyatsorondedzera zvakanyanya, kunyanya mumutambo wepamusoro uye wepamusoro, zvichiita Blu-ray DAC yemutambo inonzwika zvishoma zvishoma mukuenzanisa kunyange apo ndakashandisa iyo inofadza kurira B & W vapikisi.
Ndisati ndapedza, ndinofanira kuratidza kuti kusiyana pakati pevashanduri vakashandurwa zvakanaka kudijita-kune-analog kazhinji hakunakidze, asi varipo, uye kana inzwi rakakosha kwauri, ndinofunga zvakakosha kutenga mari shoma yekuvandudza kubva kuDAC yakaiswa mune kombiyuta yako, CD, DVD kana Blu-ray player kune yakanaka, yakadhura DAC seV90-DAC.
Iniwo ndichacherechedza kuti kana iwe une maonero pamusoro pekushandisa V90-DAC neA / V receiver, ndinokurudzira kuti uvakanganwe. Kunyange zvazvo pane vamwe vaA / V vanogamuchira nemufananidzo wezvinyorwa zvekare anogadzirwa, vakawanda vanogadzirisa zvose zviratidzo zveanalogo dzinopinda mavari. Iwe uri nani paunobatanidza chigadziro chako kubva kune zvakagadziriswa kuburikidza nehuwandu hwemagetsi pane iwe ungadai uri nekushandura chiratidzo kumanyolo neV90-DAC ndokubva uchinyorera zvakare kudijiti zvakare mukati memuteveri.
Zvimwe
Ndakatorawo mukana wekutamba maitiro mashomanana ekukura mabhii paV90-DAC, ndichishandisa yangu Audio Precision System One Dual Domain analyzer. Heino mhinduro. Kunze kusingatauri, zviyero zvose zvakatorwa pa1 kHz.
Frequency response: -0.05 dB @ 20 Hz, -0.30 dB @ 20 kHz
Chikamu chechiratidzo-to-noise: -112.8 dB isina kusimba
Crosstalk: -99.9 dB LR uye RL
Max output: 2.15 volts RMS
THD + rwiyo, max output: 0.008%
Hapana chimwe chezviitiko izvi chakanakisisa sezvinoitwa nemagetsi, asi pedyo zvakaringana tichifunga kuti ini handiiti zvakawanda zvekunze zvinyorwa zvisinganzwisisiki uye handizvo zvigadzirwa zvekupedzisira uye zvakanyanya.
Final Take
Iko V90-DAC inofadza zvikuru DAC pamutengo wayo, iyo nzira yakanakisisa yokuwana chaiyo ye audiophile-yakanaka stereo inzwi kubva kune-mass-market player Blu-ray player, satellite receiver kana cable box, kana kombiyuta ye laptop.
Kana iwe uri kushandisa, taura, mutsetse wekombiyuta wekombiyuta yako kuti ubatane ne stereo yako system, kana kuti iwe uri kushandisa DVD kana Blu-ray player kutamba maCD, ndinogona kukurudzira V90-DAC sezviri nyore, yakadhura, inonzwika nzira yekuvandudza yako system.