JBL Professional One Series 104 - zowunikira zogwira ntchito
JBL wakhala ali ndi mbiri yabwino m'magulu opanga ma studio, omwe amayenera kukhala m'modzi mwa opanga omwe akuphwanya maziko atsopano. Kodi dongosolo lake laposachedwa likuwoneka bwanji munkhaniyi?
Oyang'anira a JBL 104 ali m'gulu lazinthu zofanana ndi Genelec 8010, IK Multimedia iLoud Micro Monitor, Eve SC203 ndi ena ambiri okhala ndi 3-4,5" woofer. Izi ndi zida za malo ochitira msonkhano, makina owonera makanema, opangidwa kuti azigwira ntchito pomwe olankhula apakompyuta wamba amapereka mawonekedwe otsika kwambiri, ndipo palibe malo owunikira okulirapo.
kupanga
Oyang'anira amatumizidwa awiriawiri omwe ali ndi chogwira (kumanzere) ndi seti yokhazikika yolumikizidwa ku seti yoyamba ndi chingwe cholumikizira. Muzochitika zonsezi, gawo la inverter limabweretsedwa ku gulu lakumbuyo.
Zida za 104 zimaperekedwa pawiri zomwe zimakhala ndi zida zogwirira ntchito komanso zida za akapolo. Yoyamba ikuphatikizapo: zipangizo, manipulators ndi mauthenga. Yachiwiri ili ndi chosinthira chokha ndipo imalumikizidwa ku seti yayikulu ndi chingwe cholumikizira. Zowunikira zimatha kulumikizidwa ndi mapulagi oyenerera a TRS 6,3 mm kapena mapulagi a RCA osakwanira. Zolumikizira zodzaza masika zimagwiritsidwa ntchito kulumikiza zowunikira. Chowunikira chogwira chimayendetsedwa molunjika kuchokera pa mains, chimakhala ndi chosinthira chamagetsi, chowongolera voliyumu, cholowetsa cha stereo Aux (3,5 mm TRS) ndi chotulutsa chamutu chozimitsa zowunikira.
Nyumba zowunikira zimapangidwa ndi pulasitiki ya ABS ndipo zimakhala ndi chivundikiro chachitsulo kutsogolo. Pansi pake pali chotchinga cha neoprene chomwe chimasunga zida zotetezedwa pansi. Wopanga amati mawonekedwe ndi kapangidwe ka zowunikira zimasinthidwa kuti zigwiritsidwe ntchito pakompyuta.
Chochititsa chidwi cha 104 ndikugwiritsa ntchito ma driver a coaxial okhala ndi 3,75 ”woofer. Dalaivala yemwe ali m'malo mwake ali ndi diaphragm ya 1 ″ diaphragm ndipo ali ndi chiwongolero chachifupi. Awa ndi makonzedwe apachiyambi okhala ndi lathyathyathya mwapadera, kutengera kukula kwake, kuyankha pafupipafupi.
Mlanduwu, womwe mulibe ndege yosalala, ndi njira ya bass-reflex yokhala ndi ngalande yokhotakhota modabwitsa. Pamapeto ake amkati, chinthu chonyowa chimayikidwa kuti chichepetse chipwirikiti ndikuyambitsa kukana kwamayimbidwe kuti kukulitsa gawo la inverter resonance.
Kulekanitsa pakati pa woofer ndi tweeter kumachitidwa mosasamala ndi unipolar capacitor yomwe imayikidwa pa chowumbitsira mawu. Yankho limeneli linasankhidwa kuti musagwirizane ndi oyang'anira ndi zingwe ziwiri, zomwe zimawoneka ngati kusuntha koyenera. Zokweza mawu zimayendetsedwa ndi module ya digito ya STA350BW yomwe imadyetsa madalaivala a 2 × 30W.
Pochita
Njira yosinthira gawo yomwe ikuwoneka kumanzere ili ndi mawonekedwe a funso. Damping pazolowetsa zake adapangidwa kuti achepetse chipwirikiti ndikufanana ndi resonance. The passive crossover ntchito imachitidwa ndi capacitor yomatira pamwamba pa chosinthira.
Pamayesero, JBL 104 idathamangira mu zida za Genelec 8010A zomwe zidakhazikitsidwa kale pamsika - multimedia, koma zomveka bwino zamaluso. Ponena za mitengo, kufananitsa kuli ngati featherweight vs. heavyweight boxer. Komabe, chomwe tinkafuna chinali mawonekedwe a sonic komanso kumvetsera kwathunthu kwazinthu zovuta komanso nyimbo imodzi kuchokera kumitundu yosiyanasiyana yamitundu yambiri.
Kutulutsa kwamawu a wideband kwa 104 kumawoneka ngati kwakukulu komanso kozama kuposa momwe machitidwe a dongosolo lino angasonyezere. Bass imayikidwa pansi kuposa 8010A ndipo imadziwika bwino. Phokosoli, komabe, ndi la ogula, lokhala ndi mawonekedwe ochepa apakati ndi ma bass osunga nthawi. Ma frequency apamwamba ndi omveka bwino komanso owerengedwa bwino, koma osamveka bwino kuposa owunikira a Genelec, ngakhale amamveka ochititsa chidwi kwambiri. Mapangidwe a coaxial a transducer amagwira ntchito bwino m'munda waulere pomwe palibe zowoneka bwino pafupi ndi chowunikira, koma pa desktop, kusasinthika kwamayendedwe sikukuwonekera. Mosakayikira, JBL 104 imagwira bwino ntchito ikayikidwa kuseri kwa kompyuta pa ma tripods kuti muchepetse zotsatira za mawonekedwe apakompyuta.
Komanso, musayembekezere kuthamanga kwambiri. Chifukwa cha mapangidwe ake enieni, transducer imadziwika ndi mphamvu zambiri zamphamvu, kotero kusewera mokweza ndi bass yapamwamba si lingaliro labwino. Kuphatikiza apo, otembenuza onsewa amathandizidwa ndi amplifier wamba - kotero pa voliyumu yayikulu mumamva kuchepa kwa bandwidth. Komabe, mlingo wa SPL ukapanda kupitirira muyezo wa 85 dB panthawi yomvetsera, palibe mavuto omwe angabwere.
Madalaivala omwe amagwiritsidwa ntchito ndi opangidwa ndi coaxial okhala ndi tweeter mkati mwa woofer.
Chidule
Mapangidwe ochititsa chidwi komanso mawu ochititsa chidwi amapangitsa JBL 104 kukhala yosangalatsa kwa anthu omwe akufunafuna zowunikira ntchito zoyambira zomvera kapena kumvetsera nyimbo wamba. Pankhani ya mtengo wake, izi ndizopereka zabwino kwambiri kwa iwo omwe akufuna chinachake choposa otchedwa olankhula makompyuta, ndipo nthawi yomweyo tcherani khutu ku mtundu wa wopanga ndi ntchito yake.
Tomasz Wrublewski
Mtengo: PLN 749 (pawiri)
Wopanga: JBL Professional
www.e-kuzira.com
Kugawa: ESS Audio
