Graham LS5/9 Monitor BBC

Vagadziri veBBC monitors, hongu, vaisaziva kuti basa rakakura uye rakareba mapurojekiti avo aizoita sei. Havana kufunga kuti vaizove ngano, kunyanya pakati pevashandisi vekumba, avo vavasina kusikirwa zvachose.

Iwo aiitirwa kuti ashandiswe neBBC masitudiyo nemadhairekita pamamiriro nezvinangwa zvakanyatsotsanangurwa, akagadzirwa nehunyanzvi asi nenzira yekubatsira, pasina chinangwa chekuvandudza tekinoroji yegudzanzwi. Nekudaro, mune mamwe maaudiophile madenderedzwa, kutenda kwave kuripo kwenguva yakati kuti chinhu chepedyo kune chakanakira ndechechinyakare, kunyanya maBritish, akagadzirwa nemaoko - uye kunyanya masherufu evatariri anopihwa rezinesi neBBC.

Zvakanyanya Kutaurwa monitor kubva kuLS series diki, LS3/5. Kufanana nevatariri vese, iyo BBC yakatanga kuitirwa chinangwa chakasarudzika nemiganhu iri pachena: kuteerera mumakamuri madiki, munzvimbo dziri padyo nemunda, uye munzvimbo dzakatetepa zvakanyanya - izvo zvakakonzera kurambwa kwemabhasi uye vhoriyamu yakakwirira. Yekurangarira kwayo, yazvino vhezheni yakaburitswa makore gumi apfuura nekambani yeBritish KEF, mumwe wevashoma vakagamuchira rezinesi reBBC kugadzira LS panguva iyoyo.

Munguva pfupi yapfuura, mumwe mugadziri, Graham Audio, akaonekwa, achigadzira dhizaini shoma-inozivikanwa - tarisa LS5/9. Iyi ndeimwe yemapurojekiti eBBC achangoburwa, asi "inochengeta hunyanzvi" hweSLs dzakapfuura.

Anoratidzika kunge ari mukuru pane zvaari chaizvo. Inotaridzika senge yekutanga 70s chivakwa, asi ichiri chidiki nekuti i "chete" makore makumi matatu. Hapana mugadziri mumwe aive neruoko mune izvi, izvo nhasi zvinongowedzera kukwezva kwayo, nekuti zviri pachena kuti tiri kutarisana nevatauri kubva kune imwe nguva.

Zvakanga zvakaita sei kuma80s

The genesis yepakutanga LS5/9s kazhinji prosaic, uye mamiriro avaifanirwa kusangana nawo aive akaenzana. Munguva yakapfuura, BBC yainyanya kushandisa diki LS3/5s, iyo bass uye kugona kwepamusoro kwaive kushoma, kana iyo LS5 / 8s, iyo inopa yakakura bandwidth, kunyanya mune yakaderera-frequency renji, yakakwirira simba uye kugona, asi. uyewo zviyero zvakakura zvikuru - nekabhineti inopfuura 100 litres inodiwa kune 30 cm midwoofer. Nhasi hapana anotsunga kugadzira nzira mbiri-nzira yekushandiswa kwestudio, zvishoma zvekushandisa pamba, ine 30cm yepakati-woofer ...

Saka yepakati yekutarisa yaidiwa - idiki zvakanyanya pane iyo LS5 / 8, asi isiri yakaremara mumabass renji seLS3 / 5. Yakanga yakangonyorwa kuti LS5/9. Iwo mamonitor matsva aifanira kuratidzirwa neakanaka tonal chiyero (neyero yakaderedzwa muyero yakaderera zvichienderana nehukuru), yakanyanya kudzvinyirira inonzwika inokodzera saizi yekamuri, uye yakanaka stereo kubereka.

Iyo LS5/9 yaifanirwa kunzwika seyakafanana neLS5/8, iyo vagadziri vaisafunga kuti haigoneki kunyangwe shanduko yakakura kudaro mumidwoofer dimensions. Iyo crossover setup inogona kutaridzika sekiyi (kunyangwe kune mamwe maitiro ekutungamira iyo crossover ine rubatsiro rudiki), iyo yakafanana tweeter inoshandiswawo pano - hombe, 34mm dome, ichibva kune yakajairwa kupihwa kwekambani yeFrance Audax.

Nhoroondo yemidwoofer inonyanya kufadza. Kutsvaga chinhu chirinani pane chinowanzo shandiswa cellulose kwakatanga kare. Kubudirira kwekutanga yaive Bextrene zvinhu zvakagadziridzwa neKEF uye yakashandiswa mu12cm midwoofers (rudzi rweB110B), senge LS3/5 monitors. Nekudaro, backstring (rudzi rwepolystyrene) yaive chinhu chisina basa.

Kupfeka kwemaoko kwaidiwa kuti uwane izvo zvaidiwa, zvichiita kuti zviome kuchengetedza kudzokorora, uye nekuputira, iyo membrane yakava (zvakare) inorema, izvo zvakazoderedza kushanda zvakanaka. Mumakore makumi manomwe, Bextrene yakatsiviwa ne polypropylene - nekurasikirwa kukuru, isingachadi kuwedzera kugadziriswa.

Zvakakosha kucherechedza kuti panguva iyoyo polypropylene yakanga yakafanana neyemazuva ano uye yaifanira kushandura zvakarongeka "yakapera" cellulose.

Kusvetukira munyoro mune ikozvino

Nhasi, polypropylene ichiri kushandiswa, asi makambani mashomanana ane tariro huru pamusoro payo. Asi, cellulose membranes iri kuvandudzwa uye misanganiswa mitsva, macomposites uye masangweji ari kugadzirwa. Kambani yakagadzira aya ekutanga epakati-renji vatauri yakafa kare uye haina "vintage" michina. Zvisaririra zvezvinyorwa uye mamwe makopi ekare akapasa bvunzo. Kambani yeBritish Volt yakatanga kuvaka patsva, kana kuti kugadzira kwegudzanzwi padhuze sezvinobvira kune yekutanga.

Iwo mahull ndiwo anonyanya kukonzera exotics inorova iyo LS5/9. Hunyanzvi hwavo hunonhuhwirira mbeva uye huri nyore, asi kana iwe ukanyatsotarisisa pane iyo mamiriro, inova inoyevedza uye inodhura.

Iyo woofer iri kumashure-yakaiswa, iyo yaive yakajairika makumi mashoma emakore apfuura uye ikozvino yakasiiwa zvachose. Iyi mhinduro ine acoustic drawback - mucheto wakapinza unoumbwa pamberi pe diaphragm, kunyange zvazvo yakasvibiswa zvishoma nepamusoro pekumiswa, kubva kune mafungu anoratidzwa, kutyora maitiro ekugadzirisa (akafanana nemicheto yemadziro emadziro anobuda pamberi pe. front panel). Zvisinei, chirema ichi hachina kunyanyoipa zvokuchipa kuti chibviswe. yepakutanga LS5/9 maitiro… Mukana we "unyanzvi" wedhizaini yepamberi inobvisika yaive nyore kuwana kune ese masisitimu zvikamu. Muviri wakagadzirwa nebirch plywood.

Nhasi, 99 muzana yemakabati anogadzirwa kubva kuMDF, munguva yakapfuura ainyanya kugadzirwa kubva ku chipboard. Iyo yekupedzisira ndiyo yakachipa, uye plywood ndiyo inodhura zvakanyanya (kana tikaenzanisa mabhodhi ehumwe ukobvu). Kana zvasvika kune acoustic performance, plywood ingangove ine vakawanda vatsigiri.

Zvisinei, hapana chimwe chezvinhu izvi chinowana mukana wakajeka pamusoro pevamwe, uye kwete chete mutengo uye zvivako zvinonzwika zvakakosha zvikuru, asiwo kusununguka kwekugadzirisa - uye pano MDF inokunda zvakajeka. Plywood inowanzo "peel" kumicheto kana yakachekwa.

Sezvimwe mune mamwe madhiragi, plywood iri mumuenzaniso iri kukurukurwa inoramba yakatetepa (9 mm), uye muviri hauna simbi yekusimbisa (mativi, mbariro) - madziro ese (kunze kwekumberi) akanyatso kunyoroveswa nematasi ebhituminous uye "akavharwa." magumbeze”. “yakazara donje. Kubata pane casing yakadai kunoita ruzha rwakasiyana kwazvo pane kubaya pabhokisi reMDF; Nekudaro, iyo kesi, senge chero imwe, panguva yekushanda ichaunza coloration, iyo, zvisinei, inozove yakawedzera hunhu.

Handina chokwadi chekuti mainjiniya eBBC aive nemhedzisiro mupfungwa kana kuti vaingoshandisa nzira yaivepo uye yakakurumbira panguva iyoyo. Vakanga vasina zvakawanda zvokusarudza. Zvingave "zvisina nhoroondo" kugumisa kuti plywood yakashandiswa, nokuti yakanga iri nani kupfuura MDF, nokuti pakanga pasina MDF munyika panguva iyoyo ... Uye kuti nekuda kweLS5 / 9 plywood inonzwika zvakasiyana pane yaizonzwika muMDF housing - izvi zvakasiyana zvachose. Zviri nani? Chinonyanya kukosha ndechekuti Iyo "itsva" LS5/9 yainzwika seyekutanga. Asi izvi zvinogona kuva dambudziko ...

Ruzha rwakasiyana - asi muenzaniso?

"Reenactors" kubva kuGraham Audio vakaita zvese kudzosa yekare LS5 / 9 kuhupenyu. Sezvatakatogadzira, iyo tweeter imhando imwechete uye mugadziri sepakutanga, asi ndakanzwa muchidimbu kuti yakagadziridzwa makore apfuura. Zvechokwadi, iyo yepakati-woofer, kubva kune zvitsva zvitsva zvekambani yeVolt, yakaita "mhirizhonga" yakakura, iyo ine maitiro akasiyana-siyana zvokuti inoda kugadziriswa kwecrossover.

Uye kubva panguva iyoyo zvichienda mberi, hazvichagone kutaura kuti iyo LS5 / 9 nyowani inonzwika zvakafanana neyekutanga makore makumi matatu apfuura. Mhosva iyi yakarongedzwa nemameseji kubva kune vashandisi vekare LS5/9. Kazhinji vaisambovafarira uye vaiyeuka izvozvo kana vachienzaniswa nevamwe BBC monitorsuye kunyanya LS3/5, pakati peLS5/9 yakanga isina simba, zviri pachena yakatorwa. Izvi zvaishamisa, kunyanya sezvo prototype yakatenderwa neBBC yakatoratidza (sezvaitarisirwa) maitiro ekutapurirana.

PaInternet, unogona kuwana nhaurirano pamusoro penyaya iyi, uye yakatungamirirwa nevanhu venguva iyoyo vanopa zviitiko zvakasiyana-siyana zvinogona kuitika. Izvi zvinosanganisira, semuenzaniso, fungidziro yekuti mumwe munhu akakanganisa padanho rekutanga rekuita mukugadzira, kunyangwe pakunyorazve zvinyorwa, izvo pasina akazogadzirisa ...

Saka pamwe chete ikozvino LS5 / 9 yagadzirwa, imwe inofanirwa kuoneka pakutanga? Mushure mezvose, Graham Audio yaifanira kuwana rezinesi kubva kuBBC kuitira kuti itengese chigadzirwa chayo pasi peiyo LS5 / 9 index. Kuti uite izvi, zvaive zvakafanira kuendesa sampuli yemuenzaniso inosangana nemamiriro ekutanga uye inopindirana nekuyerwa kwezvinyorwa zveiyo prototype (uye kwete sampuli dzekuzogadzirwa gare gare). Saka pakupedzisira, kuita kwakazoitika ndiko kwaidiwa neAir Force makore makumi matatu apfuura, uye zvisingaite zvakafanana neLS5 / 9 yakagadzirwa kare.