tsheb tshiab feem ntau nruab nrog lub suab yooj yooj yim. Lawv tsis xa cov ntses bass thaj tsam tob lossis ntshiab siab. Yog lawm, cov neeg hais lus zoo li no kuj tsim nyog rau kev mloog cov xov xwm, tab sis cov tshuab hais lus zoo li no yuav ua rau muaj kev qias neeg tiag tiag rau cov neeg nyiam suab paj nruag, vim tias koj yuav tsis hnov suab paj nruag ib txwm nyob hauv lawv. Nws yog ib qho tseem ceeb tshaj plaws - qhov tau txais ntawm ib txwm hais lus system. Hauv qhov no, koj yuav tsum xaiv ib qho ntawm ob txoj kev xaiv: tivthaiv lossis coaxial acoustics.
Qee tus dhau los ua cov neeg hais lus coaxial. Xws li cov huab cua acoustics muaj ntau tus neeg hais lus, txhua tus uas rov tsim cov suab ntawm cov zaus uas tau hais nruj me ntsis. Cov zaus raug cais los ntawm cov lim tshwj xeeb - crossovers. Lawv paub qhov zaus ntawm lub teeb liab thiab xa mus rau ib tus neeg hais lus tshwj xeeb. Qee zaum, feem ntau nyob hauv kim duastereo qauv, crossovers yog nyob rau hauv ib tug nyias muaj nyias lub txee los tiv thaiv lub suab los ntawm unintentional mixing.
Rau lub suab zoo, koj yuav tsum xaiv cov ntaub ntawv lim kom raug. Ua tsaug rau cov ntxaij lim dej, coaxial acoustics rov tsim dua qhov ntau zaus dua li cov broadband. Feem ntau xws li acoustics kuj tau muab tso rau ntawm qhov tshwj xeeb podiums, uas txhim kho lub suab zoo.
Lwm hom acoustic tshuab, dav dav ntawm cov neeg nyiam tsheb tiag tiag-cov neeg nyiam suab paj nruag, yog cov khoom siv acoustics. Zoo li coaxial acoustics, nws tau dhau los ua dav. Lub hauv paus ntsiab lus ntawm nws cov cuab yeej zoo ib yam li cov cuab yeej ntawm coaxial acoustics, txawm li cas los xij, muaj qhov sib txawv me ntsis. Yog hais tias nyob rau hauv lub yav dhau los hais lus system cov neeg hais lus ntawm tag nrho peb pawg ntawm zaus nyob rau hauv ib lub tsev, ces nyob rau hauv lub tivthaiv system, lub low-frequency, mid-range thiab high-frequency hais lus yog sib cais. Yog li ntawd, tus neeg tsav tsheb tau txais peb tus neeg hais lus sib cais, uas yog qhov zoo tshaj plaws nyob ze rau ib leeg. Hauv qhov no, cov duab suab paj nruag zoo tau txais uas yuav txaus siab txawm tias cov neeg mloog nyiam tshaj plaws.
Muaj qee cov lus qhia yooj yim uas yog qhov tseem ceeb thaum xaiv ib qho kev hais lus coaxial. Ua ntej, nws yog ib qho tseem ceeb los xaiv cov neeg hais lus rau lawv lub suab, tsis yog lawv cov tsos. Ntawm chav kawm, tus tsim ntawm cov neeg hais lus yuav tsum ua kom haum rau kev tsim ntawm lub tsheb sab hauv, tab sis qhov no tsis yog qhov tseem ceeb raws li lub suab zoo. Qhov thib ob, nco ntsoovuas hais lus crossovers yog qhov tseem ceeb ua haujlwm. Lub degree ntawm lub suab sib cais nyob ntawm tus naj npawb ntawm cov ntsiab lus lim, vim tias qhov ntau ntawm lawv, lub suab zoo dua. Thib peb, tsis hais hom acoustic system (cov khoom siv lossis coaxial acoustics), nws yog qhov tsim nyog los siv lawv nrog lub suab nrov sab nraud. Hauv qhov no, lub suab yuav zoo dua. Yog hais tias lub tshuab hais lus txuas nrog lub xov tooj cua hauv tsheb lossis lwm lub taub hau, ua tib zoo saib xyuas qhov rhiab heev ntawm tus neeg hais lus, vim tias lub suab nrov tshaj plaws yuav nyob ntawm nws. Pom zoo rhiab heev - los ntawm 92 decibels.
