{"id":35790,"date":"2014-04-23T11:18:40","date_gmt":"2014-04-23T04:18:40","guid":{"rendered":"http:\/\/www.saigonstereo.com\/home\/?p=35790"},"modified":"2015-07-17T11:59:46","modified_gmt":"2015-07-17T04:59:46","slug":"vienna-acoustics-haydn-special-edition-vuon-xa-moi-dang-cap","status":"publish","type":"post","link":"https:\/\/www.saigonstereo.com\/home\/vienna-acoustics-haydn-special-edition-vuon-xa-moi-dang-cap\/","title":{"rendered":"The Preamp \u2013 Nh\u1ea1c tr\u01b0\u1edfng m\u1edbi c\u1ee7a Einstein"},"content":{"rendered":"

HFVN- C\u0169ng gi\u1ed1ng nh\u01b0 nh\u1eefng thi\u1ebft b\u1ecb hi-end \u0111\u1eaft ti\u1ec1n kh\u00e1c, The Preamp c\u1ee7a Einstein \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf n\u00ean t\u1eeb nh\u1eefng linh ki\u1ec7n tuy\u1ec7t v\u1eddi \u2013 \u0111i\u1ec1u m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng th\u01b0\u01a1ng hi\u1ec7u l\u1edbn hay th\u1eadm ch\u00ed l\u00e0 nh\u1eefng tay DIY c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n kinh t\u1ebf v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u00f3 th\u1ec3 t\u1ef1 l\u00e0m \u0111\u01b0\u1ee3c. Tuy nhi\u00ean, \u0111i\u1ec3m l\u00e0m n\u00ean t\u00ean tu\u1ed5i Einstein Audio kh\u00f4ng ch\u1ec9 l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng linh ki\u1ec7n v\u01b0\u1ee3t tr\u1ed9i, m\u00e0 \u0111\u00f3 c\u00f2n \u0111\u01b0\u1ee3c \u0111\u1ea7u t\u01b0 thi\u1ebft k\u1ebf \u0111\u1ec3 mang v\u1ebb ngo\u00e0i th\u1eadt trau chu\u1ed1t v\u00e0 m\u1ed9t ch\u1ea5t \u00e2m tuy\u1ec7t v\u1eddi. Trong su\u1ed1t 20 n\u0103m qua, Einstein Audio \u0111\u00e3 n\u1ed5 l\u1ef1c kh\u00f4ng ng\u1eebng \u0111\u1ec3 c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a m\u00ecnh ng\u00e0y m\u1ed9t ho\u00e0n thi\u1ec7n h\u01a1n.<\/p>\n

\"V\u1ebb<\/a>

V\u1ebb ngo\u00e0i The Preamp kh\u00e1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi chi\u1ebfc pre-amp n\u1ed5i ti\u1ebfng c\u1ee7a Einstein: The Tube<\/strong><\/p><\/div>\n

\u0110\u1ed1i v\u1edbi nh\u1eefng ai \u0111\u00e3 say m\u00ea th\u01b0\u01a1ng hi\u1ec7u Einstein ch\u1eafc ch\u1eafn c\u00f3 th\u1ec3 nh\u1eadn ra chi\u1ebfc pre-ampli \u0111ang \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn trong b\u00e0i vi\u1ebft n\u00e0y b\u1edfi n\u00f3 c\u00f3 ngo\u1ea1i h\u00ecnh g\u1ea7n gi\u1ed1ng chi\u1ebfc pre-amp n\u1ed5i ti\u1ebfng c\u1ee7a h\u00e3ng: The Tube. Tuy nhi\u00ean, m\u1eb7c d\u00f9 v\u1ebb ngo\u00e0i c\u1ee7a ch\u00fang th\u1eadt s\u1ef1 kh\u00e1 gi\u1ed1ng nhau, nh\u01b0ng \u00f4ng Volker Bohlmeier \u2013 ch\u1ee7 h\u00e3ng Einstein \u0111\u00e3 b\u1eadt m\u00ed v\u1edbi ch\u00fang t\u00f4i: \u201cThe Preamp \u00e0 m\u1ed9t thi\u1ebft k\u1ebf ho\u00e0n h\u1ea3o h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi The Tube v\u1edbi nh\u1eefng linh ki\u1ec7n b\u00ean trong \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p \u0111\u00e1ng k\u1ec3 v\u00e0 \u0111\u1eb7c bi\u1ec7t \u2013 v\u1ecf m\u00e1y \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u00f4m kh\u1ed1i hi\u1ec7u qu\u1ea3 h\u01a1n trong vi\u1ec7c t\u1ea3n nhi\u1ec7t, gi\u1ea3m thi\u1ec3u rung ch\u1ea5n v\u00e0 ki\u1ec3m so\u00e1t c\u1ed9ng h\u01b0\u1edfng.\u201d<\/p>\n

Th\u1eadt v\u1eady, ch\u00fang t\u00f4i \u0111\u00e3 m\u1ea5t h\u01a1n hai tu\u1ea7n \u0111\u1ec3 \u201cph\u00e2n t\u00edch\u201d chi\u1ebfc The Preamp m\u1edbi n\u00e0y, n\u00f3 t\u1eadp h\u1ee3p nh\u1eefng thi\u1ebft k\u1ebf m\u1ea1ch kh\u00e1 l\u1ea1 d\u1ef1a tr\u00ean nh\u1eefng nguy\u00ean t\u1eafc kinh \u0111i\u1ec3n nh\u01b0ng th\u1eadt s\u1ef1 ph\u1ea3i n\u00f3i r\u1eb1ng: \u0111\u00f3 l\u00e0 nh\u1eefng thi\u1ebft k\u1ebf m\u1ea1ch tuy\u1ec7t v\u1eddi. \u0110\u1ea7u ti\u00ean, The Preamp \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng thi\u1ebft k\u1ec7 m\u1ea1ch c\u00e2n b\u1eb1ng to\u00e0n ph\u1ea7n t\u1eeb \u0111\u1ea7u v\u00e0o \u0111\u1ebfn \u0111\u1ea7u ra, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khi b\u1ea1n k\u1ebft n\u1ed1i The Preamp v\u1edbi c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c b\u1eb1ng c\u00e1p Balance \u2013 XLR, b\u1ea1n th\u1ef1c s\u1ef1 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t v\u00f2ng l\u1eb7p h\u1ec7 th\u1ed1ng ho\u00e0n to\u00e0n c\u00e2n b\u1eb1ng.<\/p>\n

Th\u1ee9 hai, The Preamp gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn nhi\u1ec5u v\u00e0 \u00f9 n\u1ec1n b\u1eb1ng c\u00e1ch ph\u00e2n t\u00e1ch th\u00f4ng qua k\u00eanh ti\u1ebfp \u0111\u1ea5t m\u1ed9t c\u00e1ch kh\u00e1 th\u00fa v\u1ecb: Nh\u1edd m\u1ea1ch balance c\u00e2n b\u1eb1ng, The Preamp d\u1ec5 d\u00e0ng so s\u00e1nh t\u00edn hi\u1ec7u v\u00e0o v\u00e0 ra, c\u00e1c t\u00edn hi\u1ec7u sai bi\u1ec7t s\u1ebd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh \u0111\u00f3 l\u00e0 t\u00edn hi\u1ec7u nhi\u1ec5u, qua \u0111\u00f3 n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i l\u1edbn l\u00ean v\u00e0 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n \u1edf t\u1ea7ng \u0111\u1ec7m tr\u01b0\u1edbc khi \u0111\u1ebfn ng\u00f5 ra ampli c\u00f4ng su\u1ea5t.<\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3, The Preamp v\u1eabn \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p c\u00e1c ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 \u0111\u1ed9c quy\u1ec1n kh\u00e1c trong su\u1ed1t 20 n\u0103m qua c\u1ee7a Einstien: B\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u00e2m l\u01b0\u1ee3ng \u2013 volume control \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf n\u1eb1m ngo\u00e0i \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u.<\/p>\n

\"V\u1ecf<\/a>

V\u1ecf m\u00e1y l\u00e0m t\u1eeb nh\u00f4m kh\u1ed1i h\u1ea1n ch\u1ebf rung c\u1ed9ng h\u01b0\u1edfng v\u00e0 \u0111\u1ed3ng th\u1eddi c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng gi\u1ea3i nhi\u1ec7t<\/strong><\/p><\/div>\n

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Nh\u01b0ng \u0111\u1eb7c bi\u1ec7t nh\u1ea5t c\u00f3 l\u1ebd l\u00e0 thi\u1ebft k\u1ebf m\u1ea1ch ch\u1ecdn ng\u00f5 \u2013 selector ch\u1ea1y \u0111\u00e8n. N\u0103m ng\u00f5 v\u00e0o c\u1ee7a The Preamp l\u00e0 n\u0103m m\u1ea1ch \u0111\u1ed9c l\u1eadp ho\u00e0n to\u00e0n v\u1edbi nhau v\u00e0 d\u0129 nhi\u00ean n\u00f3 c\u0169ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng \u0111i c\u1ee7a t\u00edn hi\u1ec7u. M\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u, m\u1ed7i ng\u00f5 v\u00e0o s\u1eed d\u1ee5ng m\u1ed9t \u0111\u00f4i \u0111\u00e8n ri\u00eang bi\u1ec7t, khi b\u1ea1n chuy\u1ec3n \u0111\u1ed5i t\u1eeb ng\u00f5 v\u00e0o n\u00e0y sang ng\u00f5 v\u00e0o kh\u00e1c, c\u00e1c \u0111\u00f4i \u0111\u00e8n \u1edf c\u00e1c ng\u00f5 s\u1ebd t\u1eaft ho\u1eb7c m\u1edf \u0111\u1ed9c l\u1eadp v\u1edbi nhau. Cho \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m n\u00e0y, \u0111\u00e2y l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt \u0111\u1ed9c nh\u1ea5t v\u00f4 nh\u1ecb ch\u1ec9 hi\u1ec7n di\u1ec7n tr\u00ean c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a Einstein.<\/p>\n

The Preamp \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u1edf d\u1ea1ng dual-mono v\u00e0 s\u1eed d\u1ee5ng \u00edt h\u01a1n The Tube 1 chi\u1ebfc \u0111\u00e8n. Ch\u1ec9 v\u1edbi t\u1ed5ng c\u1ed9ng 18 chi\u1ebfc: 10 chi\u1ebfc \u0111\u00e8n JAN Philips NOS 6922 \u1edf ng\u00f5 v\u00e0o v\u00e0 8 chi\u1ebfc \u0111\u00e8n EI NOS PCC 88 \u1edf ng\u00f5 ra \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean m\u1ed9t gi\u00e1 treo kh\u00f4ng ch\u1ec9 c\u00f3 gi\u00e1 tr\u1ecb th\u1ea9m m\u1ef9, n\u00f3 c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng h\u1ea5p thu rung \u0111\u1ed9ng n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh.<\/p>\n

C\u0169ng nh\u01b0 The Tube, The Preamp \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi 5 ng\u00f5 v\u00e0o (2 x Balance, 3 x RCA) v\u00e0 2 ng\u00f5 ra (1 x Balance, 1 x RCA).<\/p>\n

N\u1ebfu ch\u00fang ta th\u1ef1c hi\u1ec7n \u201ctest m\u00f9\u201d, b\u1ea1n s\u1ebd kh\u00f4ng bao gi\u1edd tin r\u1eb1ng preamp n\u00e0y \u1ee9ng d\u1ee5ng thi\u1ebft k\u1ebf \u0111\u00e8n \u0111i\u1ec7n t\u1eed, ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 m\u1ed9t ti\u1ebfng \u00f9 hay s\u00f4i n\u00e0o. T\u0129nh l\u1eb7ng. M\u1ed9t s\u1ef1 t\u0129nh l\u1eb7ng \u0111\u00e1ng kinh ng\u1ea1c. Nghi\u00eam t\u00fac m\u00e0 n\u00f3i, n\u00f3 kh\u00e1 k\u1ef3 l\u1ea1 so v\u1edbi b\u00ecnh th\u01b0\u1eddng b\u1edfi ch\u00fang t\u00f4i \u0111ang th\u1eed nghi\u1ec7m The Preamp tr\u00ean \u0111\u00f4i loa ZU Audio Definition MK IV c\u00f3 \u0111\u1ed9 nh\u1ea1y l\u00ean \u0111\u1ebfn 101dB. \u0110\u00e2y l\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean trong \u0111\u1eddi t\u00f4i g\u1eb7p t\u00ecnh hu\u1ed1ng n\u00e0y, ngay l\u1eadp t\u1ee9c t\u00f4i ki\u1ec3m tra l\u1ea1i c\u00e1p k\u1ebft n\u1ed1i v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a ngu\u1ed3n, nh\u01b0ng kh\u00f4ng, m\u1ecdi th\u1ee9 v\u1eabn \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. Th\u1eadt kh\u00f3 tin!<\/p>\n

Theo nh\u1eefng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt trong t\u00e0i li\u1ec7u \u0111i k\u00e8m, c\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh The Preamp s\u1ebd c\u00f3 \u0111\u1ed9 t\u0129nh tuy\u1ec7t \u0111\u1ed1i, \u0111\u1ed9 \u0111\u1ed9ng t\u1ed1t v\u00e0 bi\u1ebfn d\u1ea1ng c\u1ef1c th\u1ea5p. Sau khi y\u1ebfu t\u1ed1 \u0111\u1ea7u ti\u00ean \u2013 \u0111\u1ed9 t\u0129nh \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn t\u00f4i \u0111\u00e3 b\u1eaft \u0111\u1ea7u tin r\u1eb1ng The Preamp s\u1ebd c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng t\u1ed1t c\u1ea3 2 y\u1ebfu t\u1ed1 sau \u0111\u00f3. V\u1edbi ngu\u1ed3n ph\u00e1t l\u00e0 nh\u1ea1c s\u1ed1 th\u00f4ng qua b\u1ed9 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u Ayre QB-9, c\u00e1c track nh\u1ea1c v\u00e0 kh\u1ea3 n\u0103ng th\u1ec3 hi\u1ec7n v\u1ed1n \u0111\u00e3 kh\u00e1 quen thu\u1ed9c so v\u1edbi t\u00f4i nh\u01b0 \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i tr\u1edf n\u00ean ho\u00e0n to\u00e0n kh\u00e1c. Th\u1eadt \u0111\u00e1ng kinh ng\u1ea1c v\u1ec1 \u0111\u1ed9 \u0111\u1ed9ng c\u0169ng nh\u01b0 s\u00e2n kh\u1ea5u \u00e2m thanh m\u1edf r\u1ed9ng m\u00e0 The Preamp, Volker v\u00e0 \u0111\u1ed9i ng\u0169 c\u1ee7a m\u00ecnh \u0111\u00e3 mang l\u1ea1i. B\u1ea5t ch\u1ea5p \u0111\u00f3 l\u00e0 nh\u1eefng kho\u1ea3ng l\u1eb7ng hay nh\u1eefng ti\u1ebft t\u1ea5u cao tr\u00e0o v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u1ee7ng khi\u1ebfp, The Preamp v\u1eabn c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c \u2013 \u0111i\u1ec1u kh\u00f4ng ph\u1ea3i b\u1ea5t c\u1ee9 thi\u1ebft k\u1ebf \u0111\u00e8n \u0111i\u1ec7n t\u1eed n\u00e0o c\u0169ng c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c.<\/p>\n

\"Chi\u1ebfc<\/a>

Chi\u1ebfc b\u00f3ng \u1edf gi\u1eefa \u0111\u00e3 bi\u1ebfn m\u1ea5t, The Preamp ch\u1ec9 s\u1eed d\u1ee5ng t\u1ed5ng c\u1ed9ng 18 b\u00f3ng<\/strong><\/p><\/div>\n

 <\/p>\n

V\u1edbi \u201cThe Rite Of Spring v\u1edbi Gergiev\u201d v\u00e0 d\u00e0n nh\u1ea1c Kirov \u2013 b\u1ea3ng thu c\u1ee7a Philips (2001), The Preamp \u0111\u00e3 l\u00e0m \u00e2m thanh c\u1ee7a t\u00e1c ph\u1ea9m h\u00f9ng v\u0129 n\u00e0y c\u00f9ng m\u1ed9t l\u00fac nh\u01b0 s\u1ed1ng l\u1ea1i v\u00e0 v\u00f4 c\u00f9ng s\u00f4i \u0111\u1ed9ng. D\u00e0n nh\u1ea1c xu\u1ea5t hi\u1ec7n s\u00e1ng l\u00ean, v\u1edbi t\u1eebng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1ecb ch\u1ec9 huy d\u00e0n nh\u1ea1c m\u1ed9t c\u00e1ch r\u1ea5t th\u1eadt. T\u00f4i \u0111\u00e3 nghe b\u1ea3n ghi n\u00e0y r\u1ea5t nhi\u1ec1u l\u1ea7n v\u00e0 b\u1eb1ng r\u1ea5t nhi\u1ec1u nh\u1eefng thi\u1ebft b\u1ecb kh\u00e1c nhau, nh\u01b0ng Preamp nh\u01b0 \u0111\u00e3 m\u1edf ra r\u1ea5t nhi\u1ec1u ph\u00e1t hi\u1ec7n m\u1edbi v\u1ec1 s\u1ef1 tinh t\u1ebf v\u00e0 s\u1ed1ng \u0111\u1ed9ng c\u1ee7a Gergiev v\u00e0 d\u00e0n nh\u1ea1c Kirov.<\/p>\n

Ch\u00fang t\u00f4i quy\u1ebft \u0111\u1ecbnh \u201cth\u1eed\u201d kh\u1ea3 n\u0103ng c\u1ee7a The Preamp b\u1eb1ng th\u1ec3 lo\u1ea1i Electronica \u2013 m\u1ed9t th\u1ec3 lo\u1ea1i \u0111\u01b0\u1ee3c m\u1ec7nh danh l\u00e0 \u201cqu\u00e1i v\u1eadt t\u1ed1c \u0111\u1ed9\u201d. Kh\u00fac nh\u1ea1c t\u1eeb The Eye (2007) c\u1ee7a Yello, \u0111\u00e3 \u0111\u00e1nh th\u1ee9c v\u00e0 tr\u1ed9n l\u1eabn nh\u1eefng k\u00fd \u1ee9c m\u1edbi v\u00e0 c\u0169 trong t\u00f4i. Ti\u1ebfng nh\u1ea1c c\u1ee5 \u0111i\u1ec7n t\u1eed, ti\u1ebfng bass \u0111\u1eadp th\u00ecnh th\u1ecbch nhanh ch\u00f3ng x\u00e9 tan kh\u00f4ng gian ph\u00f2ng th\u1eed, tuy nhi\u00ean ch\u00ednh \u0111i\u1ec1u \u0111\u00f3 l\u1ea1i \u0111em \u0111\u1ebfn cho t\u00f4i c\u00e1i nh\u00ecn s\u00e2u s\u1eafc h\u01a1n r\u1ea5t nhi\u1ec1u v\u00e0o t\u00e2m tr\u00ed c\u1ee7a Dieter Meier v\u00e0 Boris Blank. C\u0169ng nh\u01b0 v\u1edbi d\u00e0n nh\u1ea1c Kirov, Yello v\u1eabn l\u00e0 m\u1ed9t track nh\u1ea1c c\u00f3 y\u00eau c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c r\u1ea5t cao \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t chuy\u00ean nghi\u1ec7p v\u00e0 thu \u00e2m r\u1ea5t t\u1ed1t, ch\u00ednh v\u00ec th\u1ebf, n\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e1t l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng nhi\u1ec1u y\u00eau c\u1ea7u: s\u1eafc th\u00e1i v\u1edbi t\u1ed1c \u0111\u1ed9 v\u00e0 s\u1ef1 r\u00f5 r\u00e0ng c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n

\u0110i\u1ec1u h\u1ea5p d\u1eabn nh\u1ea5t c\u1ee7a The Preamp ch\u00ednh l\u00e0 kh\u1ea3 n\u0103ng l\u00e0m ch\u00ednh x\u00e1c nh\u1eefng g\u00ec m\u1ed9t preamp xu\u1ea5t s\u1eafc n\u00ean l\u00e0m: Bi\u1ebfn m\u1ea5t kh\u1ecfi h\u1ec7 th\u1ed1ng v\u00e0 l\u00e0m cho d\u00f2ng ch\u1ea3y \u00e2m nh\u1ea1c \u0111i th\u1eb3ng t\u1eeb ngu\u1ed3n ph\u00e1t \u0111\u1ebfn loa. C\u00f3 th\u1ec3 v\u00ed The Preamp nh\u01b0 m\u1ed9t v\u1ecb nh\u1ea1c tr\u01b0\u1edfng \u0111ang ch\u1ec9 huy d\u00e0n nh\u1ea1c c\u1ee7a m\u00ecnh, ch\u1eafc ch\u1eafn \u201c\u00f4ng \u1ea5y\u201d s\u1ebd l\u00e0m cho th\u01b0 vi\u1ec7n nh\u1ea1c c\u1ee7a b\u1ea1n t\u1ecfa s\u00e1ng trong \u00e1nh s\u00e1ng m\u1edbi, cho b\u1ea1n th\u00eam ch\u00fat c\u00e1i nh\u00ecn s\u00e2u s\u1eafc h\u01a1n v\u1ec1 nh\u1eefng g\u00ec m\u00ecnh \u0111ang c\u00f3.<\/p>\n

Mai Nguy\u1ec5n \u2013 Hifivietnam.vn Chia s\u1ebb:<\/p>\n","protected":false},"excerpt":{"rendered":"

HFVN- C\u0169ng gi\u1ed1ng nh\u01b0 nh\u1eefng thi\u1ebft b\u1ecb hi-end \u0111\u1eaft ti\u1ec1n kh\u00e1c, The Preamp c\u1ee7a Einstein \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf n\u00ean t\u1eeb nh\u1eefng linh ki\u1ec7n tuy\u1ec7t v\u1eddi \u2013 \u0111i\u1ec1u m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng th\u01b0\u01a1ng hi\u1ec7u l\u1edbn hay th\u1eadm ch\u00ed l\u00e0 nh\u1eefng tay DIY c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n kinh t\u1ebf v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u00f3 th\u1ec3…<\/p>\n","protected":false},"author":5,"featured_media":35798,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":[]},"categories":[12,15],"tags":[538],"class_list":["post-35790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-danh-gia-review","category-tin-tuc","tag-einstein-audio","category-12","category-15","description-off"],"jetpack_publicize_connections":[],"yoast_head":"\nThe Preamp \u2013 Nh\u1ea1c tr\u01b0\u1edfng m\u1edbi c\u1ee7a Einstein - 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