{"id":1764,"date":"2014-09-24T16:48:37","date_gmt":"2014-09-24T09:48:37","guid":{"rendered":"http:\/\/www.saigonstereo.com\/home\/?p=1764"},"modified":"2015-07-17T12:12:26","modified_gmt":"2015-07-17T05:12:26","slug":"cong-nghe-treble-kim-cuong-dmd-buoc-tien-moi-cua-usher-audio","status":"publish","type":"post","link":"https:\/\/www.saigonstereo.com\/home\/cong-nghe-treble-kim-cuong-dmd-buoc-tien-moi-cua-usher-audio\/","title":{"rendered":"C\u00f4ng ngh\u1ec7 treble kim c\u01b0\u01a1ng DMD – B\u01b0\u1edbc ti\u1ebfn m\u1edbi c\u1ee7a Usher Audio"},"content":{"rendered":"

HFVN – Th\u00e0nh l\u1eadp t\u1eeb n\u0103m 1972, Usher Audio c\u00f3 tr\u1ee5 s\u1edf ch\u00ednh \u0111\u1eb7t t\u1ea1i \u0110\u00e0i Loan, l\u00e0 m\u1ed9t trong nh\u1eefng th\u01b0\u01a1ng hi\u1ec7u audio hi\u1ebfm hoi c\u00f3 xu\u1ea5t x\u1ee9 t\u1eeb Ch\u00e2u \u00c1 th\u00e0nh danh tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u1ebf gi\u1edbi v\u1edbi doanh s\u1ed1 b\u00e1n ra t\u0103ng r\u1ea5t nhanh trong nh\u1eefng n\u0103m tr\u1edf l\u1ea1i \u0111\u00e2y. \u1ee8ng d\u1ee5ng v\u1eadt li\u1ec7u cao c\u1ea5p \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc k\u1ef9, \u0111\u1ea7u t\u01b0 m\u1ea1nh v\u00e0 chuy\u00ean nghi\u1ec7p \u1edf kh\u00e2u nghi\u00ean c\u1ee9u\/thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m c\u0169ng nh\u01b0 lu\u00f4n th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111o \u0111\u1ea1t, ki\u1ec3m tra g\u1eaft gao trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 ho\u00e0n thi\u1ec7n. T\u1ea5t c\u1ea3 \u0111\u00e3 gi\u00fap Usher Audio t\u1ea1o n\u00ean nh\u1eefng t\u00e1c ph\u1ea9m audio gi\u00e1 tr\u1ecb, s\u1ea3n ph\u1ea9m c\u1ee7a h\u00e3ng vinh d\u1ef1 nh\u1eadn \u0111\u01b0\u1ee3c h\u00e0ng lo\u1ea1t c\u00e1c gi\u1ea3i th\u01b0\u1edfng audio danh ti\u1ebfng trong khu v\u1ef1c v\u00e0 th\u1ebf gi\u1edbi, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng gi\u1ea3i th\u01b0\u1edfng l\u1edbn t\u1eeb c\u00e1c t\u1ea1p ch\u00ed chuy\u00ean ng\u00e0nh h\u00e0ng \u0111\u1ea7u nh\u01b0 Hifi World, The Absolute Sound, Stereophile….T\u1ea1i tri\u1ec3n l\u00e3m CES 2010 v\u1eeba qua, Usher Audio \u0111\u00e3 ch\u00ednh th\u1ee9c gi\u1edbi thi\u1ec7u thi\u1ebft k\u1ebf loa treble kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 ch\u1ebf t\u1ea1o b\u1edfi ch\u00ednh h\u00e3ng. S\u1ef1 ra \u0111\u1eddi c\u1ee7a treble kim c\u01b0\u01a1ng c\u00f4ng ngh\u1ec7 DMD l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn m\u1edbi cho th\u01b0\u01a1ng hi\u1ec7u loa \u0111\u1ebfn t\u1eeb X\u1ee9 \u0110\u00e0i, \u0111\u00e2y c\u00f2n l\u00e0 m\u1ed9t ni\u1ec1m t\u1ef1 h\u00e0o c\u1ee7a ng\u00e0nh audio ch\u00e2u \u00c1 b\u1edfi h\u1ea7u nh\u1eefng h\u00e3ng loa l\u1edbn tr\u00ean th\u1ebf gi\u1edbi v\u1eabn ch\u01b0a t\u1ef1 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c treble kim c\u01b0\u01a1ng m\u00e0 \u0111\u1ec1u ph\u1ea3i \u0111\u1eb7t h\u00e0ng t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p \u0110\u1ee9c.<\/p>\n

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C\u00f4ng ngh\u1ec7 treble kim c\u01b0\u01a1ng
\n<\/strong>M\u1ed9t loa treble ho\u00e0n h\u1ea3o ph\u1ea3i h\u1ed9i \u0111\u1ee7 3 \u0111\u1eb7c \u0111i\u1ec3m: trong l\u01b0\u1ee3ng m\u00e0ng nh\u1eb9, c\u1ee9ng v\u00e0 c\u00f3 \u0111\u1ed9 c\u1ed9ng h\u01b0\u1edfng m\u00e0n th\u1ea5p nh\u1ea5t. Ch\u1ea5t li\u1ec7u ch\u1ebf t\u1ea1o m\u00e0ng loa con treble ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay v\u1eabn l\u00e0 dome l\u1ee5a v\u00e0 c\u00e1c lo\u1ea1i m\u00e0ng kim lo\u1ea1i nh\u00f4m, Berylium. \u01afu \u0111i\u1ec3m c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y l\u00e0 chi ph\u00ed th\u1ea5p tuy nhi\u00ean ch\u00fang c\u00f2n h\u1ea1n ch\u1ebf nhi\u1ec1u v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt nh\u01b0 kh\u00f4ng th\u1ec3 v\u01b0\u01a1n t\u1edbi c\u00e1c d\u1ea3i t\u1ea7n cao h\u01a1n 20.000Hz ho\u1eb7c \u0111\u1ea1t \u0111\u1ebfn nh\u1eefng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, c\u1ed9ng h\u01b0\u1edfng m\u00e0ng n\u1ed9i t\u1ea1i cao d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng m\u00e9o break-up \u1edf m\u1ed9t v\u00e0i \u0111i\u1ec3m t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

Ng\u00e0y nay, nh\u1eefng \u0111\u00f4i loa cao c\u1ea5p th\u01b0\u1eddng \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 treble m\u00e0ng g\u1ed1m ho\u1eb7c kim c\u01b0\u01a1ng, trong \u0111\u00f3 treble kim c\u01b0\u01a1ng hi\u1ec7n \u0111\u01b0\u1ee3c xem l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u00e1i t\u1ea1o \u00e2m thanh ch\u00ednh x\u00e1c, t\u01b0 nhi\u00ean v\u00e0 trung th\u1ef1c nh\u1ea5t. C\u00f3 r\u1ea5t \u00edt c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o driver treble kim c\u01b0\u01a1ng, h\u1ea7u h\u1ebft c\u00e1c h\u00e3ng loa \u0111\u1ec1u d\u00f9ng loa treble diamond c\u1ee7a Accuton (\u0110\u1ee9c). C\u00f4ng ngh\u1ec7 treble kim c\u01b0\u01a1ng hi\u1ec7n t\u1ea1i d\u00f9ng m\u1ed9t l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t l\u00e0 c\u00e1c h\u1ea1t kim c\u01b0\u01a1ng CVD. Kim c\u01b0\u01a1ng CVD \u2013 Chemical Vapour Deposition l\u00e0 lo\u1ea1i kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c nu\u00f4i t\u1eeb c\u00e1c tinh th\u1ec3 kim c\u01b0\u01a1ng m\u1ea7m t\u1ef1 nhi\u00ean, d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p t\u00edch t\u1ee5 h\u01a1i h\u00f3a h\u1ecdc. M\u1eb7c d\u00f9 s\u1edf h\u1eefu nh\u1eefng \u0111\u1eb7c t\u00ednh \u00e2m thanh g\u1ea7n nh\u01b0 ho\u00e0n h\u1ea3o nh\u01b0ng treble kim c\u01b0\u01a1ng CVD v\u1eabn t\u1ed3n t\u1ea1i nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u1ecf g\u00e2y n\u00ean b\u1edfi ch\u00ednh tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a c\u00e1c h\u1ea1t kim c\u01b0\u01a1ng ph\u1ee7 b\u1ec1 m\u1eb7t, k\u00e9o theo vi\u1ec7c t\u1ea1o n\u00ean nh\u1eefng c\u1ed9ng h\u01b0\u1edfng kh\u00f4ng mong mu\u1ed1n tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u n\u00e0y.<\/p>\n

C\u00f4ng ngh\u1ec7 treble kim c\u01b0\u01a1ng Usher DMD
\n<\/strong>Usher Audio t\u1eeb l\u00e2u \u0111\u00e3 r\u1ea5t ch\u00fa tr\u1ecdng \u0111\u1ebfn c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o loa treble, s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a driver treble d\u00f9ng ch\u1ea5t li\u1ec7u Berylium t\u1ea1o n\u00ean nh\u1eefng d\u00f2ng s\u1ea3n ph\u1ea9m g\u1eafn t\u1eeb \u201cBe\u201d n\u1ed5i ti\u1ebfng nh\u01b0 Be-718 (\u0111\u00f4i bookshelf \u0111\u01b0\u1ee3c xem l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u00e1i t\u1ea1o \u00e2m thanh c\u1ef1c chu\u1ea9n x\u00e1c, c\u0169ng l\u00e0 s\u1ea3n ph\u1ea9n \u0111\u01b0\u1ee3c nhi\u1ec1u gi\u1ea3i th\u01b0\u1edfng nh\u1ea5t c\u1ee7a Usher Audio), Be 10, Be 20…<\/p>\n

Ti\u1ebfp n\u1ed1i th\u00e0nh c\u00f4ng n\u00e0y, sau nhi\u1ec1u n\u0103m nghi\u00ean c\u1ee9u c\u00e1c c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o loa treble kim c\u01b0\u01a1ng hi\u1ec7n t\u1ea1i, th\u1ef1c hi\u1ec7n h\u00e0ng lo\u1ea1t c\u00e1c th\u1eed nghi\u1ec7m v\u00e0 h\u00e0ng tr\u0103m bu\u1ed5i nghe th\u1ea9m \u00e2m tr\u00ean c\u00e1c thi\u1ebft k\u1ebf loa treble c\u00f3 m\u00e0ng ph\u1ee7 kim c\u01b0\u01a1ng t\u1ed5ng h\u1ee3p v\u00e0 c\u1ea3 kim c\u01b0\u01a1ng tinh khi\u1ebft. C\u00e1c k\u1ef9 s\u01b0 c\u1ee7a Usher Audio \u0111\u00e3 nh\u1eadn th\u1ea5y nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 treble kim c\u01b0\u01a1ng hi\u1ec7n t\u1ea1i, th\u1ec3 hi\u1ec7n tr\u00ean h\u00e0ng lo\u1ea1t c\u00e1c con s\u1ed1 \u0111o \u0111\u1ea1t c\u0169ng nh\u01b0 qua c\u00e1c bu\u1ed5i nghe test ki\u1ec3m ch\u1ee9ng A\/B b\u1eb1ng tai. Cu\u1ed1i c\u00f9ng, Usher \u0111\u00e3 t\u00ecm ra gi\u1ea3i ph\u00e1p \u0111\u1ec3 ho\u00e0n thi\u1ec7n treble kim c\u01b0\u01a1ng v\u1edbi c\u00f4ng ngh\u1ec7 DMD.<\/p>\n

Treble DMD \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m thi\u1ec3u tr\u1ecdng l\u01b0\u1ee3ng m\u00e0ng so v\u1edbi c\u00e1c lo\u1ea1i treble kim c\u01b0\u01a1ng hi\u1ec7n t\u1ea1i, \u0111\u1ed3ng th\u1eddi gi\u1ea3i quy\u1ebft t\u1ed1i \u0111a hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng m\u00e0ng t\u1ea1o n\u00ean chuy\u1ec3n \u0111\u1ed9ng \u1edf m\u1ee9c ho\u00e0n h\u1ea3o nh\u01b0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a piston. \u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u k\u1ef3 di\u1ec7u n\u00e0y, Usher Audio \u0111\u00e3 s\u1eed d\u1ee5ng k\u1ebft c\u1ea5u m\u00e0ng sandwich \u0111\u1eb7c bi\u1ec7t v\u1edbi 3 l\u1edbp: Kim c\u01b0\u01a1ng (D) \u2013 Kim lo\u1ea1i (M) \u2013 Kim c\u01b0\u01a1ng (D). Trong \u0111\u00f3, l\u1edbp gi\u1eefa l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t kim lo\u1ea1i \u0111\u1eb7c bi\u1ec7t, kim c\u01b0\u01a1ng ph\u1ee7 \u1edf c\u1ea3 hai m\u1eb7t tr\u00ean v\u00e0 d\u01b0\u1edbi l\u00e0 kim c\u01b0\u01a1ng DLC (Diamond Like Carbon), m\u1ed9t lo\u1ea1i carbon c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh l\u00fd, h\u00f3a, quang h\u1ecdc g\u1ea7n gi\u1ed1ng v\u1edbi kim c\u01b0\u01a1ng.<\/p>\n

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Kim c\u01b0\u01a1ng DLC l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t minh b\u1edfi Sol Aisenberg v\u00e0o n\u0103m 1971. Kim c\u01b0\u01a1ng t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh s\u00e2u trong l\u00f2ng \u0111\u1ea5t, n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n v\u1eadt l\u00fd \u0111\u1eb7c bi\u1ec7t \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 1200 \u0111\u1ed9 C v\u00e0 \u00e1p su\u1ea5t kho\u1ea3ng 5 Gpa. Trong kim c\u01b0\u01a1ng t\u1ef1 nhi\u00ean c\u00e1c nguy\u00ean t\u1eed lai h\u00f3a \u1edf d\u1ea1ng Sp3, c\u00f3 c\u1ea5u tr\u00fac m\u1ed9t nguy\u00ean t\u1eed carbon li\u00ean k\u1ebft v\u1edbi 4 nguy\u00ean t\u1eed carbon xung quanh h\u00ecnh th\u00e0nh n\u00ean m\u1ed9t c\u1ea5u tr\u00fac c\u1ef1c k\u1ef3 b\u1ec1n v\u1eefng, c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, kh\u00f4ng d\u1eabn \u0111i\u1ec7n v\u00e0 trong su\u1ed1t. Kim c\u01b0\u01a1ng DLC d\u00f9ng trong c\u00f4ng ngh\u1ec7 treble DMD c\u1ee7a Usher l\u00e0 h\u1ee3p ch\u1ea5t carbon ch\u1ee9a nguy\u00ean t\u1eed lai h\u00f3a Sp3 v\u00e0 Sp2 (1 nguy\u00ean t\u1eed carbon li\u00ean k\u1ebft v\u1edbi 3 nguy\u00ean t\u1eed carbon xung quanh). S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a treble kim c\u01b0\u01a1ng DMD ch\u00ednh l\u00e0 vi\u1ec7c \u1ee9ng d\u1ee5ng kim c\u01b0\u01a1ng DLC c\u00f3 t\u00ednh ch\u1ea5t g\u1ea7n gi\u1ed1ng nh\u1ea5t v\u1edbi kim c\u01b0\u01a1ng t\u1ef1 nhi\u00ean v\u00e0 c\u1ea5u tr\u00fac sandwich v\u1edbi l\u1edbp h\u1ee3p kim \u1edf gi\u1eefa gi\u00fap lo\u1ea1i b\u1ecf nh\u1eefng c\u1ed9ng h\u01b0\u1edfng g\u00e2y ra \u1edf m\u00e0ng g\u00e2y nhi\u1ec5u \u00e2m.<\/p>\n

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\nTreble kim c\u01b0\u01a1ng Usher DMD<\/strong><\/em><\/p>\n

B\u00ean c\u1ea1nh nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng m\u00e0ng, lo\u1ea1i b\u1ecf nh\u1eefng c\u1ed9ng h\u01b0\u1edfng n\u1ed9i t\u1ea1i, c\u00f4ng ngh\u1ec7 treble Usher DMD \u0111\u00e3 t\u1ea1o ra m\u1ed9t b\u01b0\u1edbc ti\u1ebfn m\u1edbi trong vi\u1ec7c t\u00e1i t\u1ea1o d\u1ea3i cao, kh\u00f4ng ch\u1ec9 th\u1ec3 hi\u1ec7n m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean, ch\u00ednh x\u00e1c nh\u1eefng d\u1ea3i t\u1ea7n cao, m\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean n\u00f3 gi\u00fap ng\u01b0\u1eddi nghe c\u00f3 th\u1ec3 c\u1ea3m nh\u1eadn nh\u1eefng \u00e2m treble v\u1edbi \u0111\u1ed9 \u0111\u1ed9ng c\u1ef1c nh\u1ecf. Ch\u00ednh vi\u1ec7c th\u1ec3 hi\u1ec7n c\u00f3 \u0111\u1ed9 \u0111\u1ed9ng r\u1ea5t nh\u1ecf n\u00e0y gi\u00fap ng\u01b0\u1eddi nghe \u0111\u1ebfn g\u1ea7n h\u01a1n v\u1edbi nh\u1ea1c \u201clive\u201d.<\/p>\n

Nh\u1eefng s\u1ea3n ph\u1ea9m m\u1edbi s\u1edf h\u1eefu treble DMD<\/strong><\/p>\n

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\n<\/strong><\/p>\n


\n<\/strong>Nh\u1eefng model l\u1ea7n l\u01b0\u1ee3t \u0111\u01b0\u1ee3c trang b\u1ecb treble kim c\u01b0\u01a1ng DMD bao g\u1ed3m: Be-10 Diamond, Be-20 Diamond, CP-8571 Diamond, CP-8871 Diamond, CP-777 Diamond, Dancer Mini-One Diamond, Dancer Mini-Two Diamond, Be-718 Diamond v\u00e0 Be-616 Diamond. Trong \u0111\u00f3, \u0111\u00f4i booksheld Be-718 Diamond l\u00e0 s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u \u0111\u1ea7u ti\u00ean, c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng thi\u1ebft k\u1ebf loa booksheld \u0111\u01b0\u1ee3c quan t\u00e2m nh\u1ea5t hi\u1ec7n nay. Theo th\u00f4ng tin t\u1eeb c\u00f4ng ty c\u1ed5 ph\u1ea7n M\u1ed9c Th\u1ee7y, nh\u00e0 ph\u00e2n ph\u1ed1i chinh th\u1ee9c th\u01b0\u01a1ng hi\u1ec7u Usher Audio, loa Be-718 Diamond s\u1ebd c\u00f3 m\u1eb7t t\u1ea1i Vi\u1ec7t Nam trong v\u00f2ng 2 th\u00e1ng t\u1edbi.<\/p>\n

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\nBe-718 DMD, thi\u1ebft k\u1ebf loa “hot” nh\u1ea5t c\u1ee7a Usher Audio<\/em><\/strong><\/p>\n

M\u1ed9t tin vui cho nh\u1eefng ai \u0111ang s\u1edf h\u1eefu loa Usher d\u00f9ng treble Berylium, Usher Audio s\u1ebd cung c\u1ea5p c\u00e1c driver treble kim c\u01b0\u01a1ng DMD r\u1eddi d\u00e0nh cho vi\u1ec7c n\u00e2ng c\u1ea5p v\u1edbi m\u1ee9c gi\u00e1 t\u1ed1t nh\u1ea5t.<\/p>\n

Tu\u1ea5n L\u01b0\u01a1ng – Nghe Nh\u00ecn Vi\u1ec7t Nam<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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