Graham LS5/9 Nānā BBC

ʻO nā mea hoʻolālā o ka BBC monitors, ʻoiaʻiʻo, ʻaʻole maopopo i ka hana nui a lōʻihi e hana ai kā lākou mau papahana. ʻAʻole lākou i manaʻo e lilo lākou i kaʻao, ʻoi aku hoʻi i waena o nā mea hoʻohana home hi-fi, no lākou ʻaʻole lākou i hana ʻia.

Ua manaʻo ʻia e hoʻohana ʻia e nā studio BBC a me nā alakaʻi no nā kūlana a me nā kumu i wehewehe maikaʻi ʻia, i hoʻolālā ʻia ma ke ʻano ʻoihana akā hoʻohana pono, me ka manaʻo ʻole e hoʻololi i ka ʻenehana leo kani. Eia nō naʻe, i kekahi mau pūʻulu audiophile, ua lanakila ka manaʻoʻiʻo no kekahi manawa ʻo ka mea kokoke loa i ka mea maikaʻi ʻo ia ka mea kahiko, ʻoi aku hoʻi ka poʻe Pelekania, nā mea hana lima - a ʻoi aku hoʻi nā mea mālama puke i laikini ʻia e ka BBC.

Ka nui i oleloia nānā mai ka moʻo LS ka mea liilii loa, LS3/5. E like me nā mākaʻikaʻi āpau, ua manaʻo mua ʻia ka BBC no kahi kumu kikoʻī me nā palena maopopo: hoʻolohe i nā lumi liʻiliʻi loa, i nā kūlana kahua kokoke loa, a ma nā wahi haiki loa - i alakaʻi ʻia i ka hōʻole ʻana i ka bass a me ka leo kiʻekiʻe. Ua hoʻokuʻu ʻia kona lā hoʻomanaʻo, kahi mana hou loa e ka hui Pelekane ʻo KEF, kekahi o nā mea liʻiliʻi i loaʻa ka laikini BBC e hana i ka LS i kēlā manawa.

I kēia mau lā, ua puka mai kekahi mea hana hou, ʻo Graham Audio, e hana hou ana i kahi hoʻolālā ʻike liʻiliʻi loa - nānā iā LS5/9. ʻO kēia kekahi o nā papahana BBC hou loa, akā "mālama i ka flair" o nā SL mua.

Ua ʻoi aku ka ʻoi aku o ka ʻoi ma mua o kona ʻano maoli. Ua like ia me ka hale mua o nā makahiki 70, akā ʻoi aku ka liʻiliʻi no ka mea "he kanakolu" mau makahiki. ʻAʻohe mea hoʻolālā hoʻokahi i lima i kēia, i kēia lā e hoʻonui wale i kona nani, no ka mea, maopopo koke mākou e pili ana i nā mea haʻiʻōlelo mai kekahi au.

Pehea i ka 80s

ʻO ka genesis o ka LS5/9s mua he prosaic, a ʻo nā kūlana a lākou e hālāwai ai he maʻamau. I ka wā ma mua, ua hoʻohana nui ka BBC i nā LS3/5s liʻiliʻi, nona nā bass a me nā mana peaking i kaupalena ʻia, a i ʻole nā ​​LS5 / 8s, e hāʻawi ana i ka bandwidth ākea, ʻoi aku ka nui o ka haʻahaʻa haʻahaʻa, ka mana kiʻekiʻe a me ka pono, akā. ʻO nā ʻāpana nui loa - me kahi keʻena ma luna o 100 lita e pono ai no kahi midwoofer 30 cm. I kēia lā, ʻaʻohe mea aʻa e hoʻolālā i kahi ʻōnaehana ʻelua ala no ka hoʻohana ʻana i ka studio, ʻoi aku ka liʻiliʻi no ka hoʻohana ʻana i ka home, me kahi 30cm mid-woofer ...

No laila ua makemake ʻia kahi mākaʻikaʻi waena - ʻoi aku ka liʻiliʻi ma mua o ka LS5 / 8, akā ʻaʻole like ka lame i ka pae bass e like me ka LS3 / 5. Ua hoailona wale ia LS5/9. Pono e hōʻike ʻia nā mea nānā hou e ke kaulike tonal maikaʻi (me ka helu haʻahaʻa haʻahaʻa e pili ana i ka nui), ka nui o ke kani kani kūpono i ka nui o ka lumi, a me ka hoʻopiʻi stereo maikaʻi.

ʻO ka LS5 / 9 i manaʻo ʻia e kani like me ka LS5 / 8, ʻaʻole i manaʻo ka poʻe hoʻolālā he mea hiki ʻole ke hoʻololi nui i nā ana midwoofer. ʻO ka hoʻonohonoho crossover paha he kī nui (ʻoiai no nā ʻano kuhikuhi ʻē aʻe he kōkua liʻiliʻi ka crossover), hoʻohana ʻia ka tweeter like ma aneʻi - he dome nui, 34mm, e hele mai ana mai ka makana maʻamau o ka hui Farani Audax.

ʻOi aku ka hoihoi o ka moʻolelo o ka midwoofer. Ua hoʻomaka ka ʻimi ʻana i kahi mea ʻoi aku ka maikaʻi ma mua o ka cellulose maʻamau. ʻO ka holomua mua ʻo ia ka mea Bextrene i hoʻomohala ʻia e KEF a hoʻohana ʻia ma 12cm midwoofers (type B110B), e like me ka LS3/5 monitors. Eia naʻe, he mea pono ʻole ke kaula hope (he ʻano polystyrene).

Ua koi ʻia ka uhi lima no ka hoʻokō ʻana i nā waiwai i makemake ʻia, e paʻakikī ai ka mālama ʻana i ka hana hou ʻana, a me ka uhi ʻana, lilo ka membrane i kaumaha (nui), a laila hoʻemi i ka pono. I ka makahiki 70, ua hoʻololi ʻia ʻo Bextrene e ka polypropylene - me nā poho nui, ʻaʻole koi hou i ka hana hou.

He mea pono e hoʻomaopopo i kēlā manawa ua like ka polypropylene me ka wā hou a pono e hoʻololi i ka cellulose "ka wā kahiko".

Lele mālie i kēia manawa

I kēia lā, hoʻohana mau ʻia ka polypropylene, akā liʻiliʻi nā hui i manaʻolana nui no ia. Akā, ke hoʻomaikaʻi ʻia nei nā membrane cellulose a ke kūkulu ʻia nei nā huila hou, nā composites a me nā sandwiches. Ua make lōʻihi ka hui nāna i hana i kēia mau ʻōlelo waena waena a ʻaʻohe mīkini "vintage". ʻO ke koena o ka palapala a me kekahi mau kope kahiko i hala i nā hoʻokolohua. ʻO ka hui Pelekane ʻo Volt i hana i ka hana hou ʻana, a i ʻole ka hana ʻana i kahi leo kani e like me ka hiki i ka mea mua.

ʻO nā hull ke kuleana nui no nā exotics i lanakila i ka LS5/9. ʻO kā lākou hana lima e like me ka ʻiole a maʻalahi, akā inā ʻoe e nānā pono i nā kikoʻī, ʻike ʻia ka nani a me ke kumukūʻai.

Hoʻopili ʻia ka woofer, kahi mea maʻamau i kekahi mau makahiki i hala aku nei a ua haʻalele ʻia i kēia manawa. Loaʻa i kēia hopena kahi drawback acoustic - ua hoʻokumu ʻia kahi kihi ʻoi i mua o ka diaphragm, ʻoiai ua uhi iki ʻia e ka hoʻokuʻu ʻana i luna, kahi e ʻike ʻia ai nā nalu, e hōʻino ana i nā ʻano hana (e like me nā ʻaoʻao o nā paia ʻaoʻao e kū ana i mua o ka ʻaoʻao mua). Eia naʻe, ʻaʻole koʻikoʻi kēia hemahema e like me ka mōhai ʻana iā ia no ka hoʻopau ʻana. kaila LS5/9 kumu… ʻO ka pōmaikaʻi "mākaʻikaʻi" o ka hoʻolālā panel mua hiki ke wehe ʻia ʻo ia ka maʻalahi o ke komo ʻana i nā ʻāpana ʻōnaehana āpau. Hana ʻia ke kino me ka lāʻau lāʻau birch.

I kēia lā, 99 pakeneka o nā keʻena keʻena i hana ʻia mai MDF, i ka wā ma mua i hana ʻia mai ka chipboard. ʻO ka hope ka mea maʻalahi loa, a ʻo ka plywood ka mea kūʻai nui loa (inā mākou e hoʻohālikelike i nā papa o kahi mānoanoa). I ka wā e pili ana i ka hana acoustic, ʻoi aku ka nui o nā mea kākoʻo i ka plywood.

Eia nō naʻe, ʻaʻohe o kēia mau mea i loaʻa i kahi pōmaikaʻi maikaʻi ma mua o nā mea ʻē aʻe, ʻaʻole wale ke kumukūʻai a me nā waiwai kani ke koʻikoʻi nui, akā ʻo ka maʻalahi hoʻi o ka hana ʻana - a ma aneʻi ua lanakila ʻo MDF. ʻO ka Plywood ka "peel" ma nā kihi ke ʻoki ʻia.

E like me nā lāʻau lapaʻau ʻē aʻe, ʻoi aku ka lahilahi o ka plywood i ke kumu hoʻohālike (9 mm), a ʻaʻohe mea hoʻoikaika maʻamau i ke kino (nā ʻaoʻao, crossbars) - ʻo nā paia āpau (koe wale ka mua) ua hoʻoheheʻe maikaʻi ʻia me nā moena bituminous a "quilted". pākeke”. “piha me ka pulupulu. ʻO ka paʻi ʻana i kahi pahu e hana i kahi kani ʻokoʻa loa ma mua o ke kaomi ʻana i kahi pahu MDF; No laila, ʻo ka hihia, e like me nā mea ʻē aʻe, i ka wā o ka hana e hoʻolauna i kahi kala, akā naʻe, e lilo ia i mea ʻoi aku ka maikaʻi.

ʻAʻole maopopo iaʻu inā he hopena koʻikoʻi ka poʻe ʻenehana BBC a i ʻole ke hoʻohana wale nei lākou i kahi ʻenehana i loaʻa a kaulana i kēlā manawa. ʻAʻole nui kā lākou koho. He mea "historical" ka hoʻoholo ʻana ua hoʻohana ʻia ka plywood, no ka mea, ʻoi aku ka maikaʻi ma mua o MDF, no ka mea, ʻaʻohe MDF ma ka honua ia manawa ... - he okoa loa keia. ʻOi aku ka maikaʻi? ʻO ka mea nui loa kēlā ʻO ka "hou" LS5/9 kani e like me nā mea kumu. Akā hiki i kēia ke pilikia ...

He ʻokoʻa ke kani - akā hoʻohālike?

Ua hana ʻo "Reenactors" mai Graham Audio i nā mea āpau e hoʻihoʻi i ka LS5 / 9 kahiko i ke ola. E like me kā mākou i hoʻokumu ai, ʻo ka tweeter ka ʻano like a me ka mea hana e like me ka wā ma mua, akā ua lohe au i ka hōʻuluʻulu manaʻo ua hoʻololi ʻia i nā makahiki. ʻOiaʻiʻo, ʻo ka mid-woofer, mai nā huahana hou o ka hui Volt, i hana i ka "turbulence" nui loa, nona nā ʻano like ʻole e koi ai i kahi hoʻoponopono crossover.

A mai ia manawa mai, ʻaʻole hiki ke ʻōlelo ʻia he kani like ka LS5 / 9 hou me ke kani mua he kanakolu makahiki i hala. Hoʻomaʻamaʻa ʻia ka hihia me nā memo mai nā mea hoʻohana o ka LS5/9 kahiko. ʻO ka manawa pinepine ʻaʻole lākou i hoihoi nui iā lākou a hoʻomanaʻo i ka hoʻohālikelike ʻana me nā poʻe ʻē aʻe Nānā BBCa ʻoi aku hoʻi ʻo LS3/5, nāwaliwali nā waena o LS5/9, maopopo ka lawe ʻia ʻana. He mea ʻē kēia, ʻoiai ʻo ka prototype i ʻae ʻia e ka BBC i hōʻike ʻia (e like me ka mea i manaʻo ʻia) nā hiʻohiʻona hoʻouna.

Ma ka Pūnaewele, hiki iā ʻoe ke ʻike i kahi kūkākūkā e pili ana i kēia kumuhana, a ua alakaʻi ʻia e nā poʻe o ia au e hōʻike ana i nā ʻano like ʻole o nā hanana. ʻO kēia mau mea, no ka laʻana, ka manaʻo i hana hewa kekahi i ka pae mua o ka hoʻokō ʻana i ka hana, ʻoiai ke kākau hou ʻana i ka palapala, ʻaʻohe mea i hoʻoponopono hou ...

No laila paha i kēia manawa ua hana ʻia ʻo LS5 / 9, kahi e kū mai i ka hoʻomaka? Ma hope o nā mea a pau, pono e loaʻa iā Graham Audio kahi laikini mai ka BBC i mea e kūʻai aku ai i kāna huahana ma lalo o ka LS5 / 9 index. No ka hana ʻana i kēia, pono e hoʻouna i kahi laʻana hiʻohiʻona i kū i nā kūlana kumu a kūlike me nā palapala ana o ka prototype (a ʻaʻole nā ​​laʻana o ka hana ma hope). No laila i ka hopena, ʻo ka hopena o ka hana ka mea a ka Air Force i makemake ai i kanakolu mau makahiki i hala, ʻaʻole like me ka LS5 / 9 i hana ʻia i ka wā ma mua.