Ib qho nyiaj tsawg-$ 300 DAC uas ua txhua yam? Yuav luag.
Nkawd zoo li txhua ob peb xyoos, digital-rau-analog hloov siab los ntawm kev sib tw. Ob peb xyoos dhau los lawv tag nrho ntxiv USB. Thaum lub xyoo Rocky Mountain Sound Fest , peb pom ntau thiab ntau dua DACs - txawm tias ib qho rau tsawg dua $ 400 - ntxiv Direct Stream Digital (DSD) playback high-resolution. Dab tsi yog tom ntej? Tej zaum HDMI . Nrog kev hloov ntau dhau mus, koj tuaj yeem ua tau ib rooj plaub zoo rau kev cia li yuav ib yam khoom zoo thiab pheej yig es siv nyiaj khwv nyiaj txhua qhov tshiab. Qhov ntawd yog qhov twg ntawm V90-DAC los.
Musical Fidelity ua tus $ 299 V90-DAC ua ib feem ntawm nws txoj kab V90, ib qho ntawm cov cuab yeej tsawg-qis, tsis muaj qhov khoom ci uas tsim los rau cov audiophiles uas txaus siab siv nyiaj ntxiv rau yam zoo tab sis tsis xav ua kom siv txhua txhua bill rau xeev-of-tus-kos duab.
Lub vaj huam sib luag muaj plaub lub inputs: asynchronous USB, coaxial RCA, thiab ob Toslink kho qhov muag. Outputs yog nyob rau ntawm lub tso suab RCA jacks. Lub vaj huam sib luag muaj cov hwj huam thiab cov khoom siv hluav taws xob xwb.
Yog li dab tsi 's ploj lawm? Ob yam. Ib qho, lub tswv yim USB lees txais cov xov tooj cua txog 24-ntsis / 96-kilohertz; nws yuav tsis txais 192-kilohertz high-res suab, tab sis ntau DACs hauv nqe no yuav tsis. Koj tuaj yeem ua 24/192 los ntawm cov lus qhia ua ke, tab sis yog tias koj rub cov ntaub ntawv tawm ntawm lub computer, koj yuav tsum tau siv USB-rau-coax adapter. Lub V90-DAC tsis upsample txhua yam rau 24/192, txawm. Thiab yog tias koj muaj 24/192 cov ntaub ntawv ntawm koj lub computer, nws tseem ua si rau lawv, tab sis lub computer yuav txo lawv mus rau 24/96. Ntxiv thiab, V90-DAC tsis muaj lub mloog pob ntseg, uas yog qhov koj yuav ua tau lossis tsis xav tau, tab sis nws pom muaj ntau ntawm DACs hnub no.
Nta
• Asynchronous USB, coax RCA thiab 2 Toslink inputs
• Lub tso suab RCA tso tawm
• Txais cov ntawv xov xwm tawm mus txog 24/192 kev daws teeb meem
• Txais cov teeb meem txog 24/96 kev daws teeb meem los ntawm USB
• Qhov ntev: 1.9 x 6,7 x 4 nyob rau hauv / 47 x 170 x 102 hli
• Nyhav: 1.3 lb / 0.6 kg
Teeb / Ergonomics
Tsis muaj dab tsi ntau nqis worthing ntawm no. Plug nyob rau hauv cov khoom siv fais fab, nrog rau txhua yam khoom siv, txuas lub V90-DAC rau koj lub preamp lossis receiver, thiab muaj ntawm nws. HP, IBM thiab Toshiba laptop computers Kuv siv nrog V90-DAC pom zoo sai.
Kuv nyiam lub simplicity ntawm muaj ib qho input selector hloov tsis yog lub khawm ntau DACs siv los hloov los ntawm qhov inputs. Tab sis kuv xav tias V90-DAC muaj ib lub tswv yim USB ua ntej kom yooj yim los txuas kuv lub laptop.
Kev ua tau zoo
Rau ob peb lub asthiv, kuv siv lub V90-DAC ntawm nws tus kheej ua lub ntsiab digital ntawm kuv qhov system, txuas rau kuv tus neeg ua haujlwm Panasonic Blu-ray thiab Toshiba laptop kuv siv rau feem ntau ntawm kuv cov suab paj nruag. Kuv siv kuv tus qhab nia Krell S-300i amp thiab ob pawg tham: Kuv Revel Performa3 F206s thiab qee qhov B & W CM10s.
Thaum kuv muab cov V90-DAC tso rau hauv qhov chaw ntawm Firestone Audio ILTW USB-tsuas DAC (uas tsis zoo li yuav tsum muaj lawm tab sis kuv xav tias tus nqi ntawm $ 399), Kuv tsis tau hais tias kuv pom muaj kev hloov hauv kev sonic cim. Tab sis lub system tau suab zoo tiag tiag.
Kuv pom txhua tus txheej txheem zoo li niaj zaus uas kuv tau saib thaum kuaj lub tshuab hluav taws xob muaj. Lub tinkling, tsis muaj ntsiag to hauv cov twj paj nruag hauv Holly Cole's "Train Song" nyob thoob plaws chav tsev, khiav deb mus rau sab laug ntawm sab laug sab laug thiab mus rau sab xis ntawm sab xis hais lus. Lub castanets nyob rau hauv lub Coryells "Sentenza del Cuore: Allegro" tshwm los ntawm txog 25 feet qab cov lus. Raws li nws yog txhua yam yuav tsum.
Li ntawd, ib ntus, Kuv cia li tawm ntawm V90-DAC hauv kuv lub cev, txaus siab rau txhua yam kuv tau ua los ntawm nws, los ntawm vibraphonist Gary Burton's Guided Tour CD rau Pacific Pas dej ntawm Vudu rau random TV qhia streamed tawm ntawm Amazon Instant Video.
Yep, lub V90-DAC sounded fine, tab sis zoo li cas? Yuav kom paub, Kuv teem ib qhov muag tsis pom kev, siv kuv qhov kev cai-ua qhov dig muag qhov ntsuas qis. Kuv piv rau V90-DAC mus rau Firestone suab ILTW thiab Simaudio lub hli 100D DAC. (Ameslikas $ 649, tam sim no $ 399). Kuv kuj piv rau V90-DAC rau lub tshuab luam yeeb ntawm Panasonic Blu-ray player. Tag nrho cov kev ntsuam xyuas no tau dig muag - kuv paub tsuas yog tias kuv tau ua DAC # 1, # 2 lossis # 3, thiab tsuas yog tom qab xam seb qhov twg yog qhov twg. Tag nrho cov theem tau muab piv rau 0.1 dB siv lub switcher cov theem ntawm lwm yam.
Tag nrho cov DACs standalone sounded zoo. Rau thawj ob peb lub tunes kuv ua si, kuv tsis hnov qhov txawv ntawm qhov sib txawv thaum hloov ntawm ib qho mus rau lwm qhov. (Qhov no tau siv 16-ntsis / 44.1-kilohertz cov ntaub ntawv ripped ntawm CD.) Tab sis tom qab ob peb qhov kev txiav, kuv pib hnov tias ib tug ntawm lawv tau suab nrov nyob hauv nruab nrab, nrog tsawg ntawm ib tug lispy los yog ntxim siab nyob rau hauv lub suab. Lwm sounded zoo heev tab sis cia li ib tad tsawg tus nyob rau hauv lub mids Qhov thib peb yog muaj nuj nqis tsawg txaj; rau kuv pob ntseg, nws tau muab cov suab lus me ntsis rau cov nyom, me ntsis tsis meej thiab "cua."
Thiaj li ib qho twg? Pauv tawm V90-DAC ntaus lub 100D los ntawm lub sijhawm me ntsis xwb, thaum ob leeg tau zoo dua li lub ILTW.
Piv rau cov DAC nyob rau hauv Panasonic Blu-txoj kev sib tw neeg ua si - uas, kuv tau hais, tsis zoo txhua - lub V90-DAC muab ntau yam, tshwj xeeb tshaj yog nyob rau hauv treble thiab qhov nruab nrab, ua qhov Blu- tus neeg uas ua ntawv lub DAC suab me ntsis npub hauv kev sib piv txawm tias thaum kuv siv cov suab nrov B & W tham ntau dua.
Ua ntej kuv xaus, kuv yuav tsum taw tes tias qhov sib txawv ntawm cov qauv digital-rau-analog hloov dua siab tshiab yog tsis yooj yim, tab sis lawv nyob ntawd, thiab yog lub suab tseem ceeb rau koj, kuv xav tias nws tsim nyog nqis peev nyiaj me me los ntawm DAC los ua koj lub computer, CD, DVD lossis Blu-ray tus neeg ua si rau ib qho zoo, luv-nqi DAC xws li V90-DAC.
Kuv yuav nco ntsoov tias yog koj muaj tswv yim txog kev siv V90-DAC nrog tus A / V receiver, Kuv xav kom koj hnov qab lawv. Txawm hais tias muaj qee tus A / V receivers nrog ib qho tseeb analog bypass feature, feem ntau digitize tag nrho cov teeb liab analog rau hauv lawv. Koj zoo dua txuas rau koj lub cuab yeej txuas ncaj qha mus rau tus txais khoom los ntawm kev sib txuas digital uas koj xav tau los ntawm kev hloov cov teeb liab rau analog nrog V90-DAC ces hloov nws rov rau cov rov dua hauv lub receiver.
Kev ntsuas
Kuv kuj tau muab sij hawm los khiav ob peb ntawm kev ntsuas hauv V90-DAC, siv kuv lub suab Precision System Ib Dual Domain Analyzer. Ntawm no yog qhov tshwm sim. Yog tias tsis tau sau tseg, txhua qhov kev ntsuas tau tshwm sim ntawm 1 kHz.
Teb zaus: -0.05 dB @ 20 Hz, -0.30 dB @ 20 kHz
Teeb liab-rau-suab ratio: -112.8 dB unweighted
Crosstalk: -99.9 dB LR thiab RL
Max tso zis: 2.15 Volts RMS
THD + suab nrov, tso tawm max: 0.008%
Tsis muaj cov ntsiab lus zoo li no zoo li cov chaw tsim tshuaj paus specs, tiam sis nyob ze qhov xav tias kuv tsis ua ntau cov kev ntsuam xyuas externally sourced suab thiab kuv tsis muaj qhov khoom thiab qhov khoom loj tshaj plaws rau nws.
Thaum kawg Siv
Lub V90-DAC yog ib qho zoo heev-sounding DAC rau nws cov nqi, yog ib txoj hauv kev kom tau txais qhov tseeb audiophile zoo lub suab los ntawm ib pawg neeg ua lag luam hauv Blu-duab tshav dav hlau, lub xov tooj cua lossis receiver lossis lub computer laptop.
Yog hais tias koj siv, hais, lub mloog xov tooj cua tso tawm ntawm koj lub computer los txuas rau koj lub tso suab, lossis yog tias koj siv cov DVD los yog Blu-duab tshav player ua si CDs, kuv xav kom lub V90-DAC ua ib qho yooj yim, qes-nqi, txoj kev zoo-los ua kom koj lub cev hloov.