Rau yuav luag txhua tus hais lus lossis teeb lub mloog pob ntseg koj tuaj yeem yuav, koj yuav pom qhov tshwj xeeb rau impedance ntsuas hauv ohms (symbolized li Ω). Tsis tshua muaj qhov ntim thiab suav nrog cov khoom siv phau ntawv piav qhia tias impedance txhais li cas lossis vim li cas nws tseem ceeb rau koj.
Impedance zoo li lub pob zeb loj 'n' yob. Kev nkag siab txhua yam txog nws yog qhov nyuaj, tab sis koj tsis tas yuav nkag siab txhua yam kom "tau" nws.
About Speaker Impedance
Thaum tham txog tej yam xws li watts, voltage, thiab lub zog, ntau tus kws sau suab siv qhov piv txwv ntawm cov dej ntws los ntawm cov yeeb nkab vim nws yog qhov piv txwv uas tib neeg tuaj yeem pom thiab cuam tshuam.
xav tus hais lus zoo li lub raj. Lub suab teeb liab-koj lub suab paj nruag-ua raws li cov dej ntws los ntawm cov yeeb nkab. Qhov loj dua cov yeeb nkab, dej yooj yim dua tuaj yeem ntws los ntawm nws. Cov kav dej loj dua kuj tuav cov dej ntim ntau dua. Tus neeg hais lus nrog lub impedance qis dua yog zoo li cov yeeb nkab loj uas nws tso cai rau hluav taws xob ntau dua thiab tso cai rau nws ntws yooj yim dua.
Vim li ntawd, koj pom cov amplifiers uas tau ntsuas kom xa 100 watts ntawm 8 ohms impedance lossis 150 lossis 200 watts ntawm 4 ohms impedance. Qhov qis dua qhov impedance, qhov hluav taws xob yooj yim dua (lub teeb liab lossis suab paj nruag) ntws los ntawm tus neeg hais lus.
Ntau lub amplifiers tsis tsim los ua haujlwm nrog 4-ohm hais lus. Siv cov yeeb nkab sib piv, koj tuaj yeem tso cov yeeb nkab loj dua, tab sis nws tsuas yog nqa dej ntau dua (suab) yog tias koj muaj lub twj tso kua mis (amplifier) muaj zog txaus los muab cov dej ntws ntxiv.
Puas Low Impedance Guarantee High Quality?
Siv cov lus qis-ohm yam tsis muaj cov khoom siv uas tuaj yeem txhawb nqa lawv tuaj yeem ua rau koj tig lub amplifier tag nrho, uas tuaj yeem ua rau cov khoom puas tsuaj.
Kev siv cov neeg hais lus tsis sib haum thiab lub suab nrov tuaj yeem ua rau muaj teeb meem thaum lub tshuab txais lossis lub tshuab hluav taws xob tsis ua haujlwm.
Yuav luag txhua tus hais lus niaj hnub thiab txuas mus rau txhua lub tshuab hluav taws xob niaj hnub, thiab koj yuav muaj ntau tshaj li qhov txaus rau koj chav nyob. Yog li, dab tsi yog qhov zoo ntawm tus hais lus 4-ohm piv rau 6-ohm lossis 8-ohm hais lus? Tsis yog ntau-tsuas yog qhov qis impedance qee zaum qhia tau hais tias tus nqi zoo-tuning cov engineers tau ua thaum lawv tsim tus hais lus.
Qhov impedance ntawm tus hais lus hloov thaum lub suab nce thiab nqis hauv suab (lossis zaus). Piv txwv li, ntawm 41 hertz (qhov qis tshaj plaws ntawm tus qauv bass guitar), qhov impedance ntawm tus hais lus yuav yog 10 ohms. Ntawm 2,000 hertz (qhov nruab nrab ntawm lub violin), qhov impedance yuav tsuas yog 3 ohms. Qhov tshwj xeeb impedance pom ntawm tus hais lus tsuas yog qhov nruab nrab nruab nrab xwb.
Qee tus kws tshaj lij hais lus zoo tshaj plaws nyiam txawm tias tawm ntawm cov neeg hais lus rau lub suab zoo ib yam thoob plaws txhua lub suab. Ib yam li ib tug neeg tuaj yeem xuab zeb ib daim ntoo kom tshem tawm qhov siab ntawm cov nplej, tus kws tshaj lij hais lus yuav siv hluav taws xob hluav taws xob los ua kom cov cheeb tsam ntawm cov impedance siab. Qhov kev saib xyuas ntxiv no yog vim li cas 4-ohm hais lus muaj nyob rau hauv high-end suab tab sis tsis tshua muaj nyob rau hauv huab hwm coj lag luam suab.
Koj puas tuaj yeem tuav nws?
Ua ntej koj yuav tus hais lus 4-ohm, xyuas kom meej tias lub amplifier lossis receiver tuaj yeem ua tau. Tej zaum nws yuav tsis meej, tab sis yog hais tias lub amplifier los yog receiver chaw tsim tshuaj paus luam tawm lub hwj chim ntsuam xyuas nyob rau hauv ob qho tib si 8 thiab 4 ohms, koj muaj kev ruaj ntseg. Cov amplifiers cais feem ntau yam tsis muaj lub preamp lossis tuner tuaj yeem tuav 4-ohm hais lus, raws li feem ntau high-end A / V receivers.
Ib tus txais pheej yig yuav tsis yog qhov zoo tshaj plaws match rau 4-ohm hais lus. Nws yuav ua haujlwm OK ntawm qhov ntim tsawg, tab sis crank nws, thiab lub amplifier yuav tsis muaj lub hwj chim los pub tus neeg hais lus. Lub receiver tuaj yeem kaw nws tus kheej ib ntus, lossis koj tuaj yeem hlawv lub receiver.
kab hauv qab
Qee lub amplifiers thiab receivers muaj qhov hloov pauv ntawm qhov rov qab uas koj tuaj yeem siv los hloov ntawm ohm teeb tsa. Qhov teeb meem ntawm kev siv qhov hloov pauv no yog qhov impedance tsis yog qhov chaw tiaj tus, nws yog qhov nkhaus uas txawv. Siv lub impedance hloov mus rau "muab" koj cov cuab yeej rau koj cov neeg hais lus txhob txwm ua rau tag nrho lub peev xwm ntawm koj lub amplifier lossis receiver. Cia qhov impedance ntawm nws qhov chaw siab tshaj plaws thiab yuav cov neeg hais lus uas phim koj cov khoom siv impedance teeb tsa rau qhov ua tau zoo tshaj plaws.
Impedance of Car Speakers
Hauv tsheb suab, 4-ohm hais lus yog tus qauv. Qhov ntawd yog vim lub tsheb lub tshuab khiav ntawm 12 volts DC es tsis yog 120 volts AC. Lub 4-ohm impedance tso cai rau lub tsheb hais lus kom rub lub zog ntau dua los ntawm lub tsheb uas tsis muaj hluav taws xob tsawg. Lub tsheb suab amps yog tsim los siv nrog cov neeg hais lus qis impedance. So crank it up and enjoy.
