JBL Professional Ib Series 104 - compact active saib
JBL yeej ib txwm muaj lub koob npe nrov hauv lub zej zog tsim tawm studio, uas nws tsim nyog ua ib qho ntawm cov neeg tsim khoom tawg tshiab. Yuav ua li cas yog nws qhov tseeb compact system nthuav tawm nws tus kheej hauv cov ntsiab lus no?
JBL 104 saib yog nyob rau hauv tib yam khoom pawg xws li Genelec 8010, IK Multimedia iLoud Micro Monitor, Eve SC203 thiab ntau lwm tus nrog 3-4,5 "woofer. Cov no yog cov khoom siv rau cov chaw nres tsheb sib dhos, cov tshuab multimedia, tsim los ua haujlwm qhov twg cov neeg hais lus hauv computer zoo ib yam muaj qhov tsis zoo, thiab tsis muaj qhov chaw rau cov saib xyuas loj dua.
tsim
Cov neeg saib xyuas raug xa mus rau hauv cov khub uas muaj lub cev muaj zog (sab laug) thiab cov txheej txheem passive txuas nrog rau thawj txheej nrog tus hais lus cable. Hauv ob qho tib si, theem inverter yog coj mus rau lub vaj huam sib luag tom qab.
104 cov khoom siv tau muab rau hauv cov khub uas muaj cov khoom siv tswv yim thiab cov khoom siv ua qhev passive. Thawj muaj xws li: khoom siv, manipulators thiab kev sib txuas lus. Qhov thib ob tsuas muaj ib lub converter thiab txuas nrog lub ntsiab teeb nrog ib tug acoustic cable. Cov saib tuaj yeem txuas mus rau qhov sib npaug TRS 6,3 hli plugs lossis tsis sib npaug RCA plugs. Txheem lub caij nplooj ntoos hlav-loaded connectors yog siv los txuas cov saib. Lub active saib yog powered ncaj qha los ntawm lub mains, muaj ib tug voltage hloov, ib tug tswv ntim tswj, lub tso suab Aux input (3,5 hli TRS) thiab lub mloog pob ntseg tso zis rau tua cov saib.
Cov tsev saib xyuas yog ua los ntawm ABS yas thiab muaj hlau npog rau pem hauv ntej. Hauv qab yog lub ncoo neoprene uas khaws cov khoom siv kom ruaj ntseg hauv av. Cov chaw tsim khoom thov tias cov duab thiab tsim qauv ntawm cov saib tau yoog rau kev siv desktop.
Ib qho kev nthuav dav ntawm 104 yog kev siv coaxial tsav nrog 3,75 "woofer. Tus neeg tsav tsheb concentrically positioned muaj 1 "inch diameter material dome diaphragm thiab yog haum nrog ib tug luv luv waveguide. Qhov no yog ib qho qauv tsim nrog ib qho tshwj xeeb tiaj tus, muab nws qhov loj me, zaus teb.
Cov ntaub ntawv, nyob rau hauv uas tsis muaj lub dav hlau tiaj tus, yog ib tug bass-reflex tov nrog ib tug fancifully nkhaus lossy qhov. Nyob rau hauv nws qhov kawg, lub damping lub ntsiab yog ntsia kom txo tau turbulence thiab qhia acoustic tsis kam los nthuav cov theem inverter resonance.
Kev sib cais ntawm lub woofer thiab tweeter yog ua tiav los ntawm ib qho unipolar capacitor mounted rau lub suab nrov. Qhov kev daws teeb meem no tau raug xaiv kom tsis txhob txuas cov saib nrog ob lub cables, uas zoo li qhov tsim nyog txav. Lub suab nrov yog siv los ntawm STA350BW digital module uas pub 2 × 30W tsav tsheb.
Ntawm kev xyaum
Lub theem inverter qhov pom ntawm sab laug muaj cov duab ntawm cov lus nug cim. Damping ntawm nws cov tswv yim yog tsim los txo turbulence thiab equalize resonance. Lub passive crossover muaj nuj nqi yog ua los ntawm ib tug capacitor glued mus rau sab saum toj ntawm lub converter.
Thaum lub sij hawm kev ntsuam xyuas, JBL 104 tau khiav mus rau hauv cov khoom siv Genelec 8010A uas twb tau tsim nyob rau hauv kev ua lag luam - multimedia, tab sis nrog kev ua haujlwm kom meej meej. Hais txog tus nqi, qhov kev sib piv yog zoo li featherweight vs. heavyweight boxer. Txawm li cas los xij, qhov peb xav tau yog qhov tseem ceeb ntawm tus cwj pwm sonic thiab kev mloog tag nrho ntawm cov ntaub ntawv nyuaj thiab ib qho kev sib tw los ntawm ntau hom kev tsim tawm ntau yam.
Qhov dav ntawm lub suab tsim tawm ntawm 104 zoo li yog qhov loj thiab sib sib zog nqus ntau dua li qhov ntev ntawm qhov system no xav. Cov ntses bass thaj tsam tau teeb tsa qis dua 8010A thiab pom tau zoo dua. Lub suab, txawm li cas los xij, yog ntawm cov neeg siv khoom, nrog qhov tsis tshua muaj tshwm sim ntawm nruab nrab thiab ntses bass thaj tsam sijhawm. High zaus yog qhov tseeb thiab nyeem tau zoo, tab sis tsis tshua meej dua hauv Genelec saib, txawm hais tias lawv suab zoo heev. Lub transducer tus qauv coaxial ua haujlwm zoo hauv thaj chaw dawb thaum tsis muaj qhov chaw cuam tshuam ze ntawm lub monitor, tab sis ntawm lub desktop, kev coj ua tsis sib xws tsis pom tseeb. Undoubtedly, JBL 104 ua tau zoo tshaj plaws thaum muab tso rau tom qab lub desktop ntawm tripods kom txo tau qhov cuam tshuam ntawm desktop reflections.
Tsis tas li ntawd, tsis txhob cia siab tias muaj kev kub ntxhov siab. Vim nws qhov kev tsim tshwj xeeb, lub transducer yog tus cwj pwm los ntawm ntau lub zog compression, yog li ua si nrov nrog cov qib siab ntawm cov ntses bass thaj tsam tsis yog lub tswv yim zoo. Ntxiv mus, ob qho tib si converters yog powered los ntawm ib qho amplifier - yog li ntawm qhov ntim siab koj yuav hnov qhov nqaim ntawm bandwidth. Txawm li cas los xij, thaum qib SPL tsis tshaj tus qauv 85 dB thaum lub sijhawm mloog, tsis muaj teeb meem yuav tshwm sim.
Cov tsav tsheb siv yog ntawm coaxial kev tsim kho nrog lub tweeter hauv lub woofer.
Summation
Nthuav tsim thiab zoo nkauj suab ua rau JBL 104 nthuav rau cov neeg uas tab tom nrhiav kev saib xyuas rau kev ua haujlwm suab nrov lossis kev mloog suab paj nruag. Nyob rau hauv cov ntsiab lus ntawm nws tus nqi, qhov no yog ib qho kev ncaj ncees heev rau cov neeg uas xav tau ib yam dab tsi ntau tshaj li lub computer hais lus, thiab nyob rau tib lub sij hawm them nyiaj mloog mus rau lub manufacturers lub hom thiab workmanship.
Tomasz Wrublewski
Nqe: PLN 749 (ib khub)
Chaw tsim tshuaj paus: JBL Professional
www.jblpro.com
Distribution: ESS Audio
