{"id":19205,"date":"2018-09-18T15:36:41","date_gmt":"2018-09-18T08:36:41","guid":{"rendered":"http:\/\/amplichinhhang.com\/english\/?p=19205"},"modified":"2018-09-18T15:37:19","modified_gmt":"2018-09-18T08:37:19","slug":"nhung-mau-pre-ampli-den-cong-suat-chat-luong","status":"publish","type":"post","link":"https:\/\/amplichinhhang.com\/english\/2018\/09\/nhung-mau-pre-ampli-den-cong-suat-chat-luong\/","title":{"rendered":"Nh\u1eefng m\u1eabu pre ampli \u0111\u00e8n c\u00f4ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng"},"content":{"rendered":"

Nh\u1eefng m\u1eabu pre ampli \u0111\u00e8n c\u00f4ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c nhi\u1ec1u audiophile tin d\u00f9ng \u0111\u01b0\u1ee3c Audio H\u00e0 N\u1ed9i t\u1ed5ng h\u1ee3p l\u1ea1i. Hy v\u1ecdng mang \u0111\u1ebfn nh\u1eefng s\u1ef1 l\u1ef1a ch\u1ecdn tin c\u1eady h\u01a1n cho nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi ch\u01a1i.<\/b><\/span><\/p>\n

Pre ampli PrimaLuna DiaLogue Premium<\/span><\/h2>\n

preamplifiers PrimaLuna trong qu\u00e1 kh\u1ee9 d\u1ef1a v\u00e0o \u1ed1ng 12AX7, DiaLogue Premium t\u1eadn d\u1ee5ng l\u1ee3i th\u1ebf c\u1ee7a 12AU7, s\u00e1u trong s\u1ed1 h\u1ecd – v\u00e0 \u0111i\u1ec1u n\u00e0y c\u00f3 hai l\u1ee3i \u00edch l\u1edbn. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng quen thu\u1ed9c v\u1edbi th\u01b0\u01a1ng hi\u1ec7u, thi\u1ebft b\u1ecb PrimaLuna lu\u00f4n lu\u00f4n \u0111\u01b0\u1ee3c si\u00eau d\u1ec5 d\u00e0ng tr\u00ean \u1ed1ng, v\u00ec v\u1eady \u0111\u1ea7u t\u01b0 v\u00e0o m\u1ed9t b\u1ed9 t\u1ed1t c\u1ee7a NOS cao c\u1ea5p (New Old Stock) \u1ed1ng lu\u00f4n lu\u00f4n \u0111\u01b0\u1ee3c suy ngh\u0129 v\u1eefng ch\u1eafc. May m\u1eafn thay, n\u01a1i 12AX7 t\u1ed1t nh\u1ea5t hi\u1ec7n \u0111ang \u0111\u1ea9y $ 200 – $ 350 m\u1ed7i, 12AU7s t\u1ed1t s\u1ebd ch\u1ec9 gi\u00fap b\u1ea1n tr\u1ea3 l\u1ea1i kho\u1ea3ng $ 75 m\u1ed7i l\u1ea7n. V\u00e0 nh\u00e0 nh\u1eadp kh\u1ea9u c\u1ee7a M\u1ef9, PrimaLuna, Kevin Deal, c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i b\u1ea1n.<\/p>\n

B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i \u0111\u1ea7u t\u01b0 v\u00e0o c\u00e1c \u1ed1ng NOS n\u1ebfu b\u1ea1n kh\u00f4ng c\u1ea3m th\u1ea5y b\u1ecb nghi\u00eang. C\u00e1c DiaLogue Premium \u00e2m thanh tuy\u1ec7t v\u1eddi ra kh\u1ecfi h\u1ed9p. \u1ed0ng l\u0103n ch\u1ec9 d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi t\u00f2 m\u00f2, ph\u1ea7n OCD, v\u00e0 c\u00f3 th\u1ec3 mang l\u1ea1i k\u1ebft qu\u1ea3 kh\u00e1c nhau cho nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n \u0111u\u1ed5i theo th\u1ecf. H\u1ea7u h\u1ebft c\u00e1c b\u1ea1n s\u1ebd ch\u1ec9 unbox DiaLogue Premium c\u1ee7a b\u1ea1n v\u00e0 t\u1eadn h\u01b0\u1edfng. Kh\u00f4ng c\u00f3 g\u00ec sai v\u1edbi \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

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L\u1ee3i th\u1ebf l\u1edbn nh\u1ea5t c\u1ee7a 12AU7 m\u1eb7c d\u00f9, n\u00f3 l\u00e0 t\u0103ng th\u1ea5p h\u01a1n. V\u1edbi r\u1ea5t nhi\u1ec1u ngu\u1ed3n ng\u00e0y nay c\u00f3 m\u1ed9t \u0111\u1ea7u ra b\u1ed1n volt, 22 -28db \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u00e0 h\u1ea7u h\u1ebft c\u00e1c giai \u0111o\u1ea1n d\u00f2ng hi\u1ec7n \u0111\u1ea1i cung c\u1ea5p ch\u1ec9 l\u00e0 kh\u00f4ng c\u1ea7n thi\u1ebft. B\u1ea1n k\u1ebft th\u00fac v\u1edbi \u0111i\u1ec1u khi\u1ec3n \u00e2m l\u01b0\u1ee3ng lu\u00f4n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf v\u1ecb tr\u00ed 7:00 \u0111\u1ebfn 9:00 v\u00e0 kh\u00f4ng ch\u1ec9 c\u00f3 ph\u1ea1m vi ki\u1ec3m so\u00e1t nh\u1ecf, m\u00e0 ti\u1ebfng \u1ed3n c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 b\u1edfi v\u00ec preamp kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c \u0111\u1ed9 ng\u1ecdt (v\u00e0 ti\u1ebfng \u1ed3n th\u1ea5p nh\u1ea5t) n\u01a1i.<\/p>\n

C\u00e1 nh\u00e2n, lu\u00f4n c\u00f3 m\u1ed9t c\u00e1i g\u00ec \u0111\u00f3 \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi t\u00f4i v\u1ec1 \u00e2m thanh c\u1ee7a m\u1ed9t preamplifier \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng xung quanh \u1ed1ng 12AX7 ho\u1eb7c 12AU7, ch\u00fang d\u01b0\u1eddng nh\u01b0 lu\u00f4n lu\u00f4n v\u1ebd h\u00ecnh \u1ea3nh \u00e2m h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi thi\u1ebft k\u1ebf 6DJ8 \/ 6922 v\u00e0 t\u00ednh n\u0103ng t\u0103ng \u00e2m h\u01a1n gi\u1eefa \u00e2m n\u1eb7ng v\u00e0 m\u1ec1m h\u01a1n so v\u1edbi m\u1ed9t preamplifier s\u1eed d\u1ee5ng \u1ed1ng 6H30. Kh\u00f4ng t\u1ed1t h\u01a1n hay t\u1ec7 h\u01a1n, ch\u1ec9 kh\u00e1c nhau. M\u1ed9t Lotus Elise \u0111\u01b0\u1ee3c xung quanh c\u00e1c \u0111\u01b0\u1eddng cong v\u1edbi m\u1ed9t ch\u00fat \u00edt n\u1ed7 l\u1ef1c h\u01a1n m\u1ed9t Corvette ho\u1eb7c m\u1ed9t Viper.<\/p>\n

Pre ampli PrimaLuna ProLogue Three<\/span><\/h2>\n

ProLogue Three v\u00e0 ProLogue Seven chia s\u1ebb m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh. Ch\u00fang ch\u00ednh x\u00e1c c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng tay v\u1edbi h\u1ec7 th\u1ed1ng n\u1ed1i d\u00e2y \u0111i\u1ec3m-\u0111i\u1ec3m; khung g\u1ea7m th\u00f4ng h\u01a1i \u0111\u1ea7y \u0111\u1ee7 l\u00e0 th\u00e9p c\u00f3 kh\u1ed5 l\u1edbn v\u1edbi n\u0103m l\u1edbp ph\u1ee7 ho\u00e0n thi\u1ec7n, m\u1ed7i chi\u1ebfc \u00e1o kho\u00e1c \u0111\u01b0\u1ee3c c\u1ecd x\u00e1t tay v\u00e0 \u0111\u00e1nh b\u00f3ng. C\u00e1c b\u1ed9 ph\u1eadn cao c\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng xuy\u00ean su\u1ed1t; t\u00ean nh\u00e0 cung c\u1ea5p bao g\u1ed3m Alps, Nichicon, Solen, Swellong v\u00e0 WBT. ProLogue Three v\u00e0 Seven \u0111\u1ec1u c\u00f3 m\u1ea1ch SoftStart \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 gi\u1ea3m s\u1ed1c nhi\u1ec7t, v\u00e0 c\u00f3 m\u1ed9t c\u00e1i l\u1ed3ng kim lo\u1ea1i b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 th\u00e1o r\u1eddi ph\u00f9 h\u1ee3p v\u1edbi khoang \u1ed1ng. T\u00f4i gi\u1eef nh\u1eefng th\u1ee9 n\u00e0y cho t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec t\u00f4i nghe \u0111\u01b0\u1ee3c.<\/p>\n

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ProLogue Three l\u00e0 thi\u1ebft k\u1ebf dual-mono, v\u1edbi c\u00e1c m\u00e1y bi\u1ebfn \u00e1p h\u00ecnh xuy\u1ebfn ri\u00eang bi\u1ec7t cho c\u00e1c k\u00eanh tr\u00e1i v\u00e0 ph\u1ea3i. Hai \u1ed1ng 5AR4 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i ch\u00ednh; kh\u00f4ng c\u00f3 ph\u1ea3n h\u1ed3i ti\u00eau c\u1ef1c v\u00f2ng l\u1eb7p ho\u1eb7c t\u00edn hi\u1ec7u \u00e2m c\u1ef1c. ProLogue Three s\u1eed d\u1ee5ng m\u1ed9t ngu\u1ed3n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng choke v\u00e0 m\u00e1y s\u01b0\u1edfi \u1ed1ng DC, \u0111\u01b0\u1ee3c cho l\u00e0 l\u00e0m cho n\u00f3 \u00edt kh\u00f3 kh\u0103n h\u01a1n v\u1ec1 l\u1ef1a ch\u1ecdn \u1ed1ng. ProLogue Three th\u1ec3 thao b\u1ed1n b\u1ed9 \u0111\u1ea7u v\u00e0o m\u1ee9c \u0111\u01b0\u1eddng truy\u1ec1n, m\u1ed9t trong s\u1ed1 ch\u00fang c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh giai \u0111o\u1ea1n \u1ea3nh di chuy\u1ec3n trong nam ch\u00e2m ($ 159). C\u00f3 hai b\u1ed9 \u0111\u1ea7u v\u00e0o ch\u00ednh \u2014 m\u1ed9t t\u00ednh n\u0103ng h\u1eefu \u00edch khi b\u1ea1n mu\u1ed1n th\u00eam m\u1ed9t loa si\u00eau tr\u1ea7m b\u1ed5 sung v\u00e0 kh\u00f4ng mu\u1ed1n t\u00edn hi\u1ec7u cho c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i ch\u00ednh \u0111i qua b\u1ea5t k\u1ef3 lo\u1ea1i b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c c\u00f4ng t\u1eafc n\u00e0o. Ki\u1ec3m so\u00e1t n\u1eb1m trong truy\u1ec1n th\u1ed1ng t\u1ed1i gi\u1ea3n v\u1ec1 l\u1ef1a ch\u1ecdn ngu\u1ed3n v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng – \u0111\u00f3 l\u00e0 n\u00f3. Kh\u00f4ng c\u00f3 \u0111i\u1ec1u khi\u1ec3n c\u00e2n b\u1eb1ng, kh\u00f4ng c\u00f3 c\u00f4ng t\u1eafc t\u1eaft ti\u1ebfng.<\/p>\n

Pre ampli PrimaLuna Dialogue Three<\/span><\/h2>\n

PrimaLuna DiaLogue Three preamplifier . S\u1ea3n ph\u1ea9m Dutch b\u1edfi t\u1ef7 l\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng \/ gi\u00e1 tuy\u1ec7t v\u1eddi m\u00e0 t\u1eeb l\u00e2u \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ed1i v\u1edbi th\u1ecb tr\u01b0\u1eddng th\u1ebf gi\u1edbi cho \u0111\u01a1n gi\u1ea3n, t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a n\u00f3 s\u1ea1ch s\u1ebd, \u0111\u1ed9 tin c\u1eady c\u1ee7a n\u00f3 v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m \u00e2m thanh c\u1ee7a n\u00f3 theo \u0111\u1ecbnh h\u01b0\u1edbng hi\u1ec7n \u0111\u1ea1i \u00e2m nh\u1ea1c m\u1eb7c d\u00f9 vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ed9c quy\u1ec1n c\u1ee7a \u1ed1ng ch\u00e2n kh\u00f4ng.
\nC\u00f4ng ty n\u00e0y s\u1ea3n xu\u1ea5t tr\u01b0\u1edbc tr\u00ecnh b\u00e0y \u1edf \u0111\u00e2y (nay l\u00e0 thay th\u1ebf b\u1eb1ng c\u00e1c m\u00f4 h\u00ecnh m\u1edbi nh\u1ea5t cao c\u1ea5p Preamp), B\u1ed1n t\u00edch h\u1ee3p, hai tr\u1eadn chung k\u1ebft stereo, hai tr\u1eadn chung k\u1ebft v\u00e0 hai m\u00e1y nghe \u0111\u0129a CD mono .
\nC\u00e1c \u00e2m s\u1eafc trung t\u00ednh \u0111\u00e1ng k\u1ec3, ch\u1ec9 h\u01a1i c\u00f3 khuynh h\u01b0\u1edbng h\u1ed5 ph\u00e1ch v\u00e0 v\u1edbi m\u1ed9t \u00e2m m\u01b0u \u00e2m thanh m\u01b0\u1ee3t, nh\u1edd v\u00e0o s\u1ef1 phong ph\u00fa h\u00e0i h\u00f2a c\u1ee7a n\u00f3, l\u00e0m cho \u00e2m thanh c\u1ee7a pre th\u00f4ng tho\u00e1ng v\u00e0 minh b\u1ea1ch n\u00e0y, m\u1eb7c d\u00f9 chi ph\u00ed c\u1ee7a Ba \u0110\u1ed1i tho\u1ea1i l\u00e0 ho\u00e0n to\u00e0n h\u1ee3p l\u00fd.<\/p>\n

<\/p>\n

Kh\u00f4ng c\u00f3 \u00e2m thanh ki\u1ec3u c\u0169 cho chi\u1ebfc van hi\u1ec7n \u0111\u1ea1i n\u00e0y, mang l\u1ea1i c\u1ea3m x\u00fac v\u00e0 s\u1ef1 t\u01b0\u01a1ng ph\u1ea3n n\u0103ng \u0111\u1ed9ng trong m\u1ed9t s\u1ef1 k\u1ebft h\u1ee3p ngon.
\nNh\u1edd s\u1ef1 tho\u00e1ng m\u00e1t n\u00e0y, c\u1ea5u tr\u00fac c\u1ee7a khung c\u1ea3nh \u00e2m thanh m\u1ea1nh m\u1ebd v\u00e0 ch\u1eafc ch\u1eafn, t\u1ea1o kh\u00f4ng gian cho c\u00e1c ngh\u1ec7 s\u0129 \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean s\u00e2n kh\u1ea5u t\u01b0\u1edfng t\u01b0\u1ee3ng.<\/p>\n

Pre ampli Unison Research Reference Preampli<\/h2>\n

Sau c\u00f9ng m\u1ed9t c\u00e1i nh\u00ecn \u0111\u1eb9p v\u00e0 hi\u1ec7u su\u1ea5t cao c\u1ea5p nh\u01b0 m\u00f4 h\u00ecnh tham kh\u1ea3o \u0111\u1ed3ng b\u00e0o c\u1ee7a m\u00ecnh, b\u1ed9 khu\u1ebfch \u0111\u1ea1i tr\u01b0\u1edbc n\u00e0y th\u1ec3 hi\u1ec7n s\u1ef1 ch\u00fa \u00fd tinh t\u1ebf c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ebfn t\u1eebng chi ti\u1ebft trong c\u1ea3 \u00e2m thanh v\u00e0 h\u00ecnh \u1ea3nh.
\nUnison Research Reference Preamp<\/a> th\u1ec3 hi\u1ec7n s\u1ef1 ch\u00fa \u00fd c\u1ea5p cao c\u1ee7a c\u00f4ng ty \u00dd \u0111\u01b0\u1ee3c k\u00ednh tr\u1ecdng \u0111\u1ebfn t\u1eebng chi ti\u1ebft v\u00e0 th\u1ea9m m\u1ef9 tinh t\u1ebf.<\/p>\n

M\u1ed9t khi c\u00f4ng vi\u1ec7c tr\u00ean b\u1ed9 khu\u1ebfch \u0111\u1ea1i tham chi\u1ebfu \u0111\u00e3 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh, r\u00f5 r\u00e0ng l\u00e0 m\u1ed9t preamplifier c\u1ee7a c\u00f9ng m\u1ed9t hi\u1ec7u su\u1ea5t cao t\u1ea7m c\u1ee1 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh phong ph\u00fa l\u00e0 c\u1ea7n thi\u1ebft, v\u00e0 c\u1ee7a m\u1ed9t ti\u00eau chu\u1ea9n x\u1ee9ng \u0111\u00e1ng v\u1edbi lo\u1ea1t sao n\u00e0y.<\/p>\n

\"Unison<\/a><\/h2>\n

K\u1ebft qu\u1ea3 l\u00e0, b\u1ed9 khu\u1ebfch \u0111\u1ea1i Pre Reference \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o. \u0110\u01b0\u1ee3c ch\u1ebf t\u00e1c theo ti\u00eau chu\u1ea9n \u00e2m thanh ch\u00ednh x\u00e1c c\u1ee7a Unison Research v\u00e0 th\u1ea9m m\u1ef9 th\u1ea7n th\u00e1nh, b\u1ed9 khu\u1ebfch \u0111\u1ea1i Pre Reference l\u00e0 m\u1ed9t vi\u00ean ng\u1ecdc kh\u00e1c trong v\u01b0\u01a1ng mi\u1ec7n lo\u1ea1t tham chi\u1ebfu.<\/p>\n

Nh\u1eefng m\u1eabu pre ampli \u0111\u00e8n c\u00f4ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng do Audio H\u00e0 N\u1ed9i t\u1ed5ng h\u1ee3p v\u00e0 li\u1ec7t k\u00ea.\/<\/p>\n","protected":false},"excerpt":{"rendered":"

Nh\u1eefng m\u1eabu pre ampli \u0111\u00e8n c\u00f4ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c nhi\u1ec1u audiophile tin d\u00f9ng \u0111\u01b0\u1ee3c Audio H\u00e0 N\u1ed9i t\u1ed5ng h\u1ee3p l\u1ea1i. Hy v\u1ecdng mang \u0111\u1ebfn nh\u1eefng s\u1ef1 l\u1ef1a ch\u1ecdn tin c\u1eady h\u01a1n cho nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi ch\u01a1i. Pre ampli PrimaLuna DiaLogue Premium preamplifiers PrimaLuna trong qu\u00e1 kh\u1ee9 d\u1ef1a v\u00e0o […]<\/p>\n","protected":false},"author":11,"featured_media":19206,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[326,865],"tags":[2142],"class_list":{"0":"post-19205","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-amply","8":"category-amply-primaluna","9":"tag-unison-research-reference-preampli"},"yoast_head":"\nNh\u1eefng m\u1eabu pre ampli \u0111\u00e8n c\u00f4ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng | Audio H\u00e0 N\u1ed9i 50 L\u00ea Ngo<\/title>\n<meta name=\"description\" content=\"Pre ampli Unison Research Reference Preampli \u0110\u01b0\u1ee3c ch\u1ebf t\u00e1c theo ti\u00eau chu\u1ea9n \u00e2m thanh ch\u00ednh x\u00e1c c\u1ee7a Unison Research v\u00e0 th\u1ea9m m\u1ef9 th\u1ea7n th\u00e1nh, b\u1ed9 khu\u1ebfch \u0111\u1ea1i Pre Re\" 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