{"id":490030,"date":"2025-09-16T10:34:28","date_gmt":"2025-09-16T03:34:28","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=490030"},"modified":"2025-09-16T10:34:28","modified_gmt":"2025-09-16T03:34:28","slug":"day-loa","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/day-loa\/","title":{"rendered":"D\u00e2y loa d\u00e0i bao nhi\u00eau l\u00e0 \u0111\u1ee7? C\u00e1c lo\u1ea1i d\u00e2y loa v\u00e0 c\u00e1ch ch\u1ecdn mua d\u00e2y t\u1ed1t nh\u1ea5t"},"content":{"rendered":"

D\u00e2y loa <\/b>\u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c truy\u1ec1n t\u1ea3i \u00e2m thanh ch\u1ea5t l\u01b0\u1ee3ng t\u1eeb thi\u1ebft b\u1ecb \u0111\u1ebfn loa. V\u1eady d\u00e2y d\u00e0i bao nhi\u00eau l\u00e0 \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t? B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i n\u00e0o ph\u00f9 h\u1ee3p v\u00e0 c\u00e1ch ch\u1ecdn mua d\u00e2y c\u00e1p loa t\u1ed1t nh\u1ea5t c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 b\u1ecf qua. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 \u0111\u1ed9 d\u00e0i d\u00e2y c\u00e1p\u00a0 loa l\u00fd t\u01b0\u1edfng nh\u00e9.<\/span><\/p>\n

D\u00e2y loa l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong h\u1ec7 th\u1ed1ng \u00e2m thanh, \u0111\u00f3ng vai tr\u00f2 k\u1ebft n\u1ed1i gi\u1eefa loa v\u00e0 amply c\u00f4ng su\u1ea5t \u0111\u1ec3 truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u \u00e2m thanh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. V\u1ec1 b\u1ea3n ch\u1ea5t, d\u00e2y t\u00edn hi\u1ec7u \u00e2m thanh gi\u00fap chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb amply \u0111\u1ebfn loa, t\u1eeb \u0111\u00f3 t\u1ea1o ra \u00e2m thanh r\u00f5 r\u00e0ng v\u00e0 trung th\u1ef1c. Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a d\u00e2y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i \u00e2m thanh, quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn \u0111\u1ed9 trong, s\u00e1ng v\u00e0 \u0111\u1ed9 s\u00e2u c\u1ee7a \u00e2m thanh ph\u00e1t ra.<\/span><\/p>\n

\"day-loa-1\"<\/picture><\/p>\n

C\u1ea5u t\u1ea1o c\u01a1 b\u1ea3n c\u1ee7a d\u00e2y t\u00edn hi\u1ec7u \u00e2m thanh bao g\u1ed3m s\u1ee3i d\u1eabn, l\u1edbp \u0111i\u1ec7n m\u00f4i v\u00e0 \u0111\u1ea7u c\u1eafm. S\u1ee3i d\u1eabn l\u00e0 b\u1ed9 ph\u1eadn ch\u1ee7 ch\u1ed1t c\u00f3 nhi\u1ec7m v\u1ee5 truy\u1ec1n t\u00edn hi\u1ec7u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb \u0111\u1ed3ng ho\u1eb7c b\u1ea1c \u2013 nh\u1eefng kim lo\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n t\u1ed1t. L\u1edbp \u0111i\u1ec7n m\u00f4i bao b\u1ecdc quanh s\u1ee3i d\u1eabn c\u00f3 t\u00e1c d\u1ee5ng c\u00e1ch \u0111i\u1ec7n, gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 th\u1ea5t tho\u00e1t v\u00e0 nhi\u1ec5u t\u00edn hi\u1ec7u.\u00a0<\/span><\/p>\n

V\u1eadt li\u1ec7u d\u00f9ng l\u00e0m \u0111i\u1ec7n m\u00f4i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh, trong \u0111\u00f3 polyethylene l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c d\u00e2y cao c\u1ea5p, trong khi c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ed5 th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng nh\u1ef1a k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng. \u0110\u1ea7u c\u1eafm d\u00e2y l\u00e0 \u0111i\u1ec3m k\u1ebft n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u00e2m thanh, \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c kim lo\u1ea1i nh\u01b0 \u0111\u1ed3ng thau ho\u1eb7c m\u1ea1 v\u00e0ng nh\u1eb1m \u0111\u1ea3m b\u1ea3o ti\u1ebfp x\u00fac t\u1ed1t v\u00e0 ch\u1ed1ng oxy h\u00f3a.<\/span><\/p>\n

Vai tr\u00f2 c\u1ee7a d\u00e2y loa<\/b><\/h2>\n

\u0110\u00e2y ch\u00ednh l\u00e0 c\u1ea7u n\u1ed1i quan tr\u1ecdng gi\u00fap \u0111\u1ea3m b\u1ea3o \u00e2m thanh ph\u00e1t ra t\u1eeb loa<\/strong> <\/a>\u0111\u01b0\u1ee3c r\u00f5 r\u00e0ng, s\u1ed1ng \u0111\u1ed9ng v\u00e0 trung th\u1ef1c nh\u1ea5t. Trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e2m thanh \u0111a d\u1ea1ng nh\u01b0 h\u1ed9i tr\u01b0\u1eddng, \u00e2m thanh chuy\u00ean nghi\u1ec7p hay \u00e2m thanh h\u1ed9i ngh\u1ecb, d\u00e2y \u00e2m thanh lu\u00f4n l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu, g\u00f3p ph\u1ea7n quy\u1ebft \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 truy\u1ec1n t\u1ea3i \u00e2m thanh.<\/span><\/p>\n

\"day-loa-2\"<\/picture><\/p>\n

Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a t\u00edn hi\u1ec7u \u00e2m thanh truy\u1ec1n \u0111\u1ebfn loa ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o d\u00e2y k\u1ebft n\u1ed1i loa s\u1eed d\u1ee5ng. N\u1ebfu d\u00e2y d\u1eabn kh\u00f4ng \u0111\u1ea1t chu\u1ea9n ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng, t\u00edn hi\u1ec7u s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i \u0111\u1ea7y \u0111\u1ee7, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng suy gi\u1ea3m \u00e2m thanh, m\u00e9o ti\u1ebfng ho\u1eb7c m\u1ea5t m\u00e1t t\u00edn hi\u1ec7u. \u0110i\u1ec1u n\u00e0y l\u00e0m \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m nghe, khi\u1ebfn \u00e2m thanh tr\u1edf n\u00ean k\u00e9m s\u1eafc n\u00e9t, thi\u1ebfu chi ti\u1ebft v\u00e0 m\u1ea5t \u0111i s\u1ef1 c\u00e2n b\u1eb1ng c\u1ea7n thi\u1ebft.<\/span><\/p>\n

Ngo\u00e0i ra, d\u00e2y t\u00edn hi\u1ec7u loa c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh. M\u1ed9t d\u00e2y d\u1eabn t\u1ed1t kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i ch\u00ednh x\u00e1c m\u00e0 c\u00f2n gi\u00fap h\u1ea1n ch\u1ebf nhi\u1ec5u, gi\u1ea3m thi\u1ec3u th\u1ea5t tho\u00e1t n\u0103ng l\u01b0\u1ee3ng v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh \u1ed5n \u0111\u1ecbnh trong su\u1ed1t qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/span><\/p>\n

C\u00e1c lo\u1ea1i d\u00e2y loa ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/b><\/h2>\n

C\u00e1c lo\u1ea1i d\u00e2y \u00e2m thanh hi\u1ec7n nay r\u1ea5t \u0111a d\u1ea1ng, m\u1ed7i lo\u1ea1i mang l\u1ea1i hi\u1ec7u qu\u1ea3 truy\u1ec1n t\u00edn hi\u1ec7u kh\u00e1c nhau. Vi\u1ec7c hi\u1ec3u r\u00f5 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng ch\u1ecdn \u0111\u01b0\u1ee3c d\u00e2y ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng. Qua \u0111\u00f3, \u00e2m thanh truy\u1ec1n t\u1ea3i s\u1ebd \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m nghe tuy\u1ec7t v\u1eddi h\u01a1n.<\/span><\/p>\n

D\u00e2y \u0111\u01a1n<\/b><\/h3>\n

Single-end, l\u00e0 lo\u1ea1i d\u00e2y ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong nhi\u1ec1u h\u1ec7 th\u1ed1ng \u00e2m thanh hi\u1ec7n nay. Thi\u1ebft k\u1ebf c\u1ee7a d\u00e2y kh\u00e1 \u0111\u01a1n gi\u1ea3n, v\u1edbi m\u1ed7i \u0111\u1ea7u d\u00e2y ch\u1ec9 trang b\u1ecb hai c\u1ecdc \u0111\u1ea5u, gi\u00fap vi\u1ec7c k\u1ebft n\u1ed1i tr\u1edf n\u00ean d\u1ec5 d\u00e0ng v\u00e0 nhanh ch\u00f3ng. Lo\u1ea1i d\u00e2y n\u00e0y th\u00edch h\u1ee3p cho c\u00e1c d\u00e0n loa th\u00f4ng th\u01b0\u1eddng, \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh t\u1eeb amply \u0111\u1ebfn loa.<\/span><\/p>\n

\"day-loa-3\"<\/picture><\/p>\n

Nh\u1edd c\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n, d\u00e2y \u0111\u01a1n th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd v\u00e0 d\u1ec5 d\u00e0ng thay th\u1ebf khi c\u1ea7n thi\u1ebft. M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ee9c t\u1ea1p nh\u01b0 c\u00e1c lo\u1ea1i d\u00e2y cao c\u1ea5p kh\u00e1c, d\u00e2y \u0111\u01a1n v\u1eabn \u0111\u00e1p \u1ee9ng t\u1ed1t y\u00eau c\u1ea7u truy\u1ec1n \u00e2m trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn, t\u1eeb h\u1ec7 th\u1ed1ng \u00e2m thanh gia \u0111\u00ecnh \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh c\u01a1 b\u1ea3n kh\u00e1c.\u00a0<\/span><\/p>\n

D\u00e2y bi-wire, tri-wire<\/b><\/h3>\n

D\u00e2y \u0111a m\u1ed1i, c\u00f3 thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p h\u01a1n d\u00e2y \u0111\u01a1n nh\u1edd vi\u1ec7c trang b\u1ecb nhi\u1ec1u c\u1eb7p c\u1ecdc \u0111\u1ea5u \u1edf m\u1ed7i \u0111\u1ea7u. C\u1ee5 th\u1ec3, bi-wire s\u1edf h\u1eefu hai c\u1eb7p c\u1ecdc, trong khi tri-wire c\u00f3 t\u1edbi ba c\u1eb7p, gi\u00fap t\u00e1ch bi\u1ec7t c\u00e1c t\u00edn hi\u1ec7u \u00e2m thanh t\u1eeb amply \u0111\u1ebfn t\u1eebng \u0111\u01b0\u1eddng ti\u1ebfng ri\u00eang bi\u1ec7t tr\u00ean loa. Lo\u1ea1i d\u00e2y n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c loa \u0111a \u0111\u01b0\u1eddng ti\u1ebfng, n\u01a1i t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c ph\u00e2n chia r\u00f5 r\u00e0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh t\u1ed1t nh\u1ea5t.<\/span><\/p>\n

\"day-loa-4\"<\/picture><\/p>\n

Vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y \u0111a m\u1ed1i gi\u00fap gi\u1ea3m thi\u1ec3u nhi\u1ec5u v\u00e0 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 chi ti\u1ebft, ch\u00ednh x\u00e1c c\u1ee7a \u00e2m thanh, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng cao c\u1ea5p. Nh\u1edd c\u1ea5u t\u1ea1o \u0111\u1eb7c bi\u1ec7t, d\u00e2y bi-wire v\u00e0 tri-wire \u0111\u01b0\u1ee3c nhi\u1ec1u audiophile v\u00e0 chuy\u00ean gia \u00e2m thanh tin t\u01b0\u1edfng l\u1ef1a ch\u1ecdn \u0111\u1ec3 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m nghe, mang l\u1ea1i \u00e2m thanh r\u00f5 n\u00e9t v\u00e0 trung th\u1ef1c h\u01a1n.<\/span><\/p>\n

N\u00ean mua d\u00e2y loa d\u00e0i bao nhi\u00eau l\u00e0 \u0111\u1ee7?<\/b><\/h2>\n

Kh\u00f4ng c\u00f3 m\u1ed9t k\u00edch th\u01b0\u1edbc d\u00e2y chu\u1ea9n c\u1ed1 \u0111\u1ecbnh, b\u1edfi m\u1ed7i h\u1ec7 th\u1ed1ng \u0111\u1ec1u c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang v\u00e0 y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch gi\u1eefa amply v\u00e0 loa kh\u00e1c nhau. Do \u0111\u00f3, chi\u1ec1u d\u00e0i d\u00e2y n\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean v\u1ecb tr\u00ed \u0111\u1eb7t thi\u1ebft b\u1ecb nh\u1eb1m tr\u00e1nh vi\u1ec7c d\u00e2y qu\u00e1 d\u00e0i g\u00e2y th\u1ea5t tho\u00e1t t\u00edn hi\u1ec7u ho\u1eb7c d\u00e2y qu\u00e1 ng\u1eafn khi\u1ebfn k\u1ebft n\u1ed1i kh\u00f4ng thu\u1eadn ti\u1ec7n.<\/span><\/p>\n

\"day-loa-5\"<\/picture><\/p>\n

Khi ch\u1ecdn c\u00e1p loa, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng chi\u1ec1u d\u00e0i d\u00e2y t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi \u0111i\u1ec7n tr\u1edf b\u00ean trong. D\u00e2y c\u00e0ng d\u00e0i s\u1ebd t\u1ea1o ra \u0111i\u1ec7n tr\u1edf l\u1edbn h\u01a1n, l\u00e0m gi\u1ea3m c\u00f4ng su\u1ea5t truy\u1ec1n t\u1ea3i v\u00e0 \u0111\u00f2i h\u1ecfi amply ph\u1ea3i m\u1ea1nh m\u1ebd h\u01a1n \u0111\u1ec3 b\u00f9 \u0111\u1eafp s\u1ef1 suy hao n\u00e0y. N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y h\u1ea1n ch\u1ebf chi\u1ec1u d\u00e0i d\u00e2y \u0111\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng, gi\u00fap amply v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh v\u00e0 tr\u00e1nh nguy c\u01a1 qu\u00e1 t\u1ea3i ho\u1eb7c ch\u00e1y n\u1ed5 do d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n

Trong tr\u01b0\u1eddng h\u1ee3p amply c\u00f4ng su\u1ea5t \u0111\u1eb7t g\u1ea7n loa, b\u1ea1n n\u00ean \u01b0u ti\u00ean d\u00e2y k\u1ebft n\u1ed1i loa ng\u1eafn \u0111\u1ec3 t\u1ed1i \u01b0u t\u00edn hi\u1ec7u. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu kho\u1ea3ng c\u00e1ch xa, d\u00e2y d\u00e0i h\u01a1n l\u00e0 c\u1ea7n thi\u1ebft nh\u01b0ng kh\u00f4ng n\u00ean qu\u00e1 d\u00e0i. M\u1ed9t m\u1eb9o h\u1eefu \u00edch l\u00e0 d\u1ef1 ph\u00f2ng th\u00eam kho\u1ea3ng n\u1eeda m\u00e9t d\u00e2y \u0111\u1ec3 thu\u1eadn ti\u1ec7n \u0111i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed loa ho\u1eb7c amply khi c\u1ea7n thi\u1ebft m\u00e0 kh\u00f4ng ph\u1ea3i thay th\u1ebf d\u00e2y m\u1edbi, gi\u00fap h\u1ec7 th\u1ed1ng \u00e2m thanh lu\u00f4n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 linh ho\u1ea1t.<\/span><\/p>\n

C\u00e1c ti\u00eau ch\u00ed c\u1ea7n quan t\u00e2m \u0111\u1ec3 mua d\u00e2y loa ph\u00f9 h\u1ee3p nhu c\u1ea7u<\/b><\/h2>\n

Khi ch\u1ecdn mua c\u00e1p loa ph\u00f9 h\u1ee3p, b\u1ea1n c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn nh\u1eefng ti\u00eau ch\u00ed quan tr\u1ecdng gi\u00fap \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ea3n ph\u1ea9m. T\u1eeb ch\u1ea5t li\u1ec7u, \u0111\u1ed9 d\u00e0i \u0111\u1ebfn kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n v\u00e0 thi\u1ebft k\u1ebf \u0111\u1ea7u c\u1eafm, m\u1ed7i y\u1ebfu t\u1ed1 \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t truy\u1ec1n t\u00edn hi\u1ec7u.<\/span><\/p>\n

L\u1ef1a ch\u1ecdn d\u00e2y c\u00e1p loa ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng \u00e2m thanh<\/b><\/h3>\n

Tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh mua, vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u1ea5u h\u00ecnh c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t. D\u00f9 d\u00e2y c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ebfn \u0111\u00e2u, n\u1ebfu kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c thi\u1ebft b\u1ecb trong d\u00e0n \u00e2m thanh, hi\u1ec7u qu\u1ea3 truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u s\u1ebd kh\u00f4ng \u0111\u1ea1t t\u1ed1i \u01b0u. M\u00e2u thu\u1eabn gi\u1eefa d\u00e2y d\u1eabn v\u00e0 thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 g\u00e2y ra m\u1ea5t c\u00e2n b\u1eb1ng \u00e2m thanh, l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng tr\u1ea3i nghi\u1ec7m nghe.<\/span><\/p>\n

\"day-loa-6\"<\/picture><\/p>\n

Do \u0111\u00f3, khi ch\u1ecdn c\u00e1p loa, b\u1ea1n c\u1ea7n xem x\u00e9t k\u1ef9 y\u1ebfu t\u1ed1 t\u01b0\u01a1ng th\u00edch v\u1edbi amply, loa v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c trong h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u1ed1i h\u1ee3p nh\u1ecbp nh\u00e0ng, gi\u00fap \u00e2m thanh ph\u00e1t ra r\u00f5 r\u00e0ng, chi ti\u1ebft v\u00e0 trung th\u1ef1c h\u01a1n. Ngo\u00e0i ra, l\u1ef1a ch\u1ecdn d\u00e2y ph\u00f9 h\u1ee3p c\u00f2n h\u1ed7 tr\u1ee3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb, tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 v\u1ec1 \u0111i\u1ec7n tr\u1edf ho\u1eb7c suy hao t\u00edn hi\u1ec7u kh\u00f4ng mong mu\u1ed1n.<\/span><\/p>\n

\u01afu ti\u00ean ch\u1ecdn d\u00e2y t\u1eeb ch\u1ea5t li\u1ec7u cao c\u1ea5p<\/b><\/h3>\n

Ch\u1ea5t l\u01b0\u1ee3ng d\u00e2y k\u1ebft n\u1ed1i \u00e2m thanh \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u00fap h\u1ec7 th\u1ed1ng \u00e2m thanh ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. V\u00ec v\u1eady, vi\u1ec7c \u01b0u ti\u00ean s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i d\u00e2y l\u00e0m t\u1eeb v\u1eadt li\u1ec7u cao c\u1ea5p l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng minh \u0111\u1ec3 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m nghe c\u1ee7a b\u1ea1n. D\u00e2y ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng ch\u1ec9 gi\u00fap truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng m\u00e0 c\u00f2n h\u1ea1n ch\u1ebf s\u1ef1 suy hao, \u0111\u1ea3m b\u1ea3o \u00e2m thanh ph\u00e1t ra \u0111\u01b0\u1ee3c trung th\u1ef1c v\u00e0 s\u1eafc n\u00e9t.<\/span><\/p>\n

\"day-loa-7\"<\/picture><\/p>\n

Ch\u1ea5t li\u1ec7u c\u1ea5u th\u00e0nh d\u00e2y l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t truy\u1ec1n d\u1eabn. Nh\u1eefng lo\u1ea1i <\/span>d\u00e2y loa<\/b> t\u1ed1t th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb \u0111\u1ed3ng nguy\u00ean ch\u1ea5t ho\u1eb7c th\u1eadm ch\u00ed \u0111\u01b0\u1ee3c m\u1ea1 v\u00e0ng \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ed1ng oxy h\u00f3a. B\u00ean c\u1ea1nh \u0111\u00f3, ti\u1ebft di\u1ec7n d\u00e2y d\u1eabn c\u0169ng \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i, d\u00e2y c\u00f3 ti\u1ebft di\u1ec7n l\u1edbn gi\u00fap gi\u1ea3m \u0111i\u1ec7n tr\u1edf, duy tr\u00ec c\u00f4ng su\u1ea5t \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/span><\/p>\n

L\u1ef1a ch\u1ecdn chi\u1ec1u d\u00e0i d\u00e2y ph\u00f9 h\u1ee3p cho hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u<\/b><\/h3>\n

Chi\u1ec1u d\u00e0i d\u00e2y \u00e2m thanh l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc k\u1ef9 l\u01b0\u1ee1ng khi thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng \u00e2m thanh. \u0110\u1ed9 d\u00e0i ph\u00f9 h\u1ee3p kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u \u00e2m thanh \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean s\u1ef1 g\u1ecdn g\u00e0ng, th\u1ea9m m\u1ef9 cho kh\u00f4ng gian l\u1eafp \u0111\u1eb7t. Vi\u1ec7c ch\u1ecdn d\u00e2y qu\u00e1 d\u00e0i ho\u1eb7c qu\u00e1 ng\u1eafn \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh c\u0169ng nh\u01b0 g\u00e2y kh\u00f3 kh\u0103n trong qu\u00e1 tr\u00ecnh b\u1ed1 tr\u00ed thi\u1ebft b\u1ecb.<\/span><\/p>\n

\"day-loa-8\"<\/picture><\/p>\n

N\u1ebfu amply c\u00f4ng su\u1ea5t v\u00e0 loa \u0111\u1eb7t g\u1ea7n nhau, d\u00e2y truy\u1ec1n \u00e2m ng\u1eafn l\u00e0 l\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd nh\u1ea5t \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u0111i\u1ec7n tr\u1edf v\u00e0 tr\u00e1nh hao h\u1ee5t t\u00edn hi\u1ec7u kh\u00f4ng c\u1ea7n thi\u1ebft. Ng\u01b0\u1ee3c l\u1ea1i, khi kho\u1ea3ng c\u00e1ch gi\u1eefa hai thi\u1ebft b\u1ecb kh\u00e1 xa, b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng d\u00e2y d\u00e0i h\u01a1n \u0111\u1ec3 k\u1ebft n\u1ed1i thu\u1eadn ti\u1ec7n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1eddng truy\u1ec1n t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh. Tuy nhi\u00ean, n\u00ean tr\u00e1nh s\u1eed d\u1ee5ng d\u00e2y qu\u00e1 d\u00e0i v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf, khi\u1ebfn c\u00f4ng su\u1ea5t amply b\u1ecb gi\u1ea3m v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh.<\/span><\/p>\n

Thi\u1ebft k\u1ebf \u0111\u1ea7u c\u1eafm d\u00e2y loa<\/b><\/h3>\n

\u0110\u1ea7u c\u1eafm d\u00e2y truy\u1ec1n \u00e2m l\u00e0 b\u1ed9 ph\u1eadn k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp gi\u1eefa d\u00e2y d\u1eabn v\u00e0 thi\u1ebft b\u1ecb \u00e2m thanh, \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng. M\u1ed9t thi\u1ebft k\u1ebf \u0111\u1ea7u c\u1eafm ch\u1eafc ch\u1eafn, ch\u1ea5t l\u01b0\u1ee3ng cao s\u1ebd gi\u00fap \u0111\u1ea3m b\u1ea3o ti\u1ebfp x\u00fac t\u1ed1t, h\u1ea1n ch\u1ebf hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t t\u00edn hi\u1ec7u ho\u1eb7c t\u00edn hi\u1ec7u b\u1ecb suy hao trong qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eabn. V\u1eadt li\u1ec7u s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o \u0111\u1ea7u c\u1eafm th\u01b0\u1eddng l\u00e0 \u0111\u1ed3ng thau, \u0111\u1ed3ng nguy\u00ean ch\u1ea5t ho\u1eb7c \u0111\u01b0\u1ee3c m\u1ea1 v\u00e0ng \u0111\u1ec3 ch\u1ed1ng oxy h\u00f3a v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng \u0103n m\u00f2n theo th\u1eddi gian.<\/span><\/p>\n

\"day-loa-9\"<\/picture><\/p>\n

Ngo\u00e0i ra, ki\u1ec3u d\u00e1ng v\u00e0 c\u1ea5u tr\u00fac \u0111\u1ea7u c\u1eafm c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 thu\u1eadn ti\u1ec7n khi k\u1ebft n\u1ed1i, th\u00e1o l\u1eafp v\u00e0 b\u1ea3o tr\u00ec thi\u1ebft b\u1ecb. \u0110\u1ea7u c\u1eafm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf th\u00f4ng minh s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng g\u1eafn ch\u1eb7t ho\u1eb7c th\u00e1o ra m\u00e0 kh\u00f4ng l\u00e0m h\u01b0 h\u1ea1i gi\u1eafc hay d\u00e2y d\u1eabn. M\u1ed9t s\u1ed1 lo\u1ea1i \u0111\u1ea7u c\u1eafm c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng rung, gi\u00fap t\u00edn hi\u1ec7u kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n do c\u00e1c t\u00e1c \u0111\u1ed9ng v\u1eadt l\u00fd b\u00ean ngo\u00e0i.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

D\u00e2y loa<\/b> l\u00e0 th\u00e0nh ph\u1ea7n quan tr\u1ecdng kh\u00f4ng th\u1ec3 thi\u1ebfu trong b\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng \u00e2m thanh n\u00e0o, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a t\u00edn hi\u1ec7u truy\u1ec1n t\u1ea3i. Vi\u1ec7c \u0111\u1ea7u t\u01b0 \u0111\u00fang m\u1ee9c v\u00e0o d\u00e2y \u00e2m thanh kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb m\u00e0 c\u00f2n n\u00e2ng t\u1ea7m ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh, \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng b\u1ec1n b\u1ec9 theo th\u1eddi gian. V\u00ec v\u1eady, \u0111\u1eebng xem nh\u1eb9 vi\u1ec7c ch\u1ecdn l\u1ef1a c\u00e1p loa ph\u00f9 h\u1ee3p, b\u1edfi \u0111\u00e2y ch\u00ednh l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng c\u1ee7a d\u00e0n \u00e2m thanh.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n