Vim li cas koj xav tau ib lub lim rau cov subwoofer?

Muaj ntau ntawm cov kiv cua xav kom muaj ib tug tus kheej lub tsev ua yeeb yam, tab sis tsis yog txhua tus yuav them taus xws li ib tug whim. Txhua leej txhua tus los ntawm xws li ib tug teeb meem no nyob rau hauv nws tus kheej txoj kev: ib tug neeg yuav tau txais tej yam yooj yim Suav hais lus, ib tug neeg haum rau lub ntses bass thaj tsam loudspeakers Soviet-ua, zoo, feem ntau tshaj, muaj kev txawj ntse ntawm hluav taws xob engineering, yuav tsim lub subwoofer tsawg zaus channel ntawm nws tus kheej. Tshwj xeeb tshaj yog txij thaum nws yog heev yooj yim.

Txheej txheem cej luam

Xav txog dab tsi yog ib tug pa subwoofer. Nyob rau hauv qhov tseeb, ib tug yooj yim active lim ntawm tsawg zaus tswv yim Pib ntsais koj teeb uas muaj cov khoom los ntawm cov kab zis (sab laug thiab txoj cai raws), cov amplifier thiab woofer. Nyob rau hauv no tsab xov xwm peb yuav sib tham txog cov feem ntau nyuaj lub caij ntawm lub ntaus ntawv - ib tug tswvyim uas tso cai rau koj mus rau nws tus kheej-sib sau ua ke uas tsis muaj-pass lim rau lub subwoofer. Xws li cov me nyuam zaus tsis tshaj 40 Hz. Lawv yog siv nyob rau hauv ua ke nrog me me satellite tham. Subwoofers yog kom nquag plias thiab passive. Cov yav tas yog tsawg zaus lub taub hau, kev cob cog rua rau ib qho amplifier. Qhov no zoo ntawm pab kiag li lawm yog tsis zoo thiab unpopular. Nws yog ib heev lwm tus tshaj plaws - tus thawj kev xaiv. Nyob rau hauv xws hluav taws xob nkauj nraug lub active tsawg-pass lim rau lub subwoofer thiab ib tug nyias muaj nyias ib lub hwj huam amplifier yog cais los ntawm lub ntses bass thaj tsam lub teeb liab uas yog nkag mus rau lub ntsiab loudspeakers ncaj qha nyob rau hauv lub qhov chaw pub huam qhov twg filtering ntawm no lub teeb liab yuav qis tshaj theem ntawm harmonic distortion, raws li muab piv rau lub tso zis ntau zog amplifier filtering. Ntxiv ib daim amplifier nyob rau hauv lub subwoofer channel yuav ho ua rau kom lub dynamic ntau yam, raws li tau zoo raws li tso cov amplifier nruab nrab thiab theem siab frequencies los ntawm cov ntxiv load.

Lim rau lub subwoofer: tswvyim

Tus nyeem ntawv yog caw mus saib peb schemes embodiment ntawm xws li ib tug ntaus ntawv. Nyob rau hauv thawj tswvyim, ib tug yooj yim lim yog muab rau cov subwoofer configured raws li ib tug adder transistor. Loj suab zoo yuav tsis tau tiav nrog xws li ib tug ntaus ntawv, tab sis, vim nws simplicity, nws yog zoo meej rau beginners hams. Tab sis lim subwoofer nyob rau hauv lub nram qab no ob embodiments, nrog zoo zoo tau tsim muaj nws tus kheej raws li ib tug ntaus nrog zoo heev yam ntxwv. Tej apparatus yog teem tam sim ntawd tom qab txoj kab tso zis lub hwj chim thiab tswv yim hwj chim ntawm tus amplifier. Lim rau lub subwoofer Nws yus tsis muaj suab nrov, tsis tshua muaj zog noj, raws li tau zoo raws li ib tug ntau yam ntawm mov voltage.

xaus

Summing li, cia hais tias qhov sib ntxiv ntawm ib tug subwoofer ntawm active hom ho thiaj li qis ciam ntawm lub zaus teb pab suab clarity nyob rau hauv lub midrange thiab muab ib tug heev kub ntim theem tsis muaj distortion. Tshem tawm ntawm cov thawj spectrum ntawm ib tug tswv cuab teeb liab tawm tswv yim rau lub satellites, nws tso cai rau cov tsawg zaus suab nrov thiab dlaim phaj. Qhov no yog vim hais tias cov tsawg zaus lub khob hliav qab lub taub hau tsis ywj faj ywj fwm nrog ib tug high school cov amplitude, ua rau cov me nyuam ntses bass thaj tsam suab, li no qhia distortion mus rau hauv lub teeb liab.