Lub subwoofer (los yog sub) yog ib lub woofer, los yog ib lub suab nrov, uas yog mob siab rau kev tsim tawm ntawm cov suab qis qis hu ua bass.
Qhov ntau zaus zaus rau lub subwoofer yog kwv yees li 20-200 Hz rau cov neeg siv khoom, qis dua 100 Hz rau kev ua suab nrov, thiab qis dua 80 Hz hauv THX-pom zoo systems.
Subwoofers yog npaj los txhawb qhov tsawg zaus ntau ntawm cov hais lus nrov uas npog ntau zaus bands.
Subwoofers yog tsim los ntawm ib los yog ntau tshaj woofers mounted nyob rau hauv lub kaw lus nrov - feem ntau yog ua los ntawm ntoo - muaj peev xwm tiv taus cua siab thaum tiv thaiv deformation. Subwoofer enclosures tuaj nyob rau hauv ntau yam kev tsim, nrog rau bass reflex (nrog rau qhov chaw nres nkoj los yog passive radiator nyob rau hauv lub enclosure), infinite baffle, horn-loaded, thiab bandpass designs, sawv cev tshwj xeeb tradeoffs nrog rau kev ua tau zoo, bandwidth, loj thiab nqi. Passive subwoofers muaj tus tsav tsheb subwoofer thiab cov ntaub thaiv npog thiab lawv tau siv los ntawm ib qho sab nraud Amplifier. Active subwoofers muaj xws li ib tug built-in amplifier. Thawj subwoofers tau tsim nyob rau xyoo 1960 los ntxiv cov lus teb bass thaj tsam rau hauv tsev stereo systems. Subwoofers tuaj rau hauv kev nco qab ntau dua nyob rau xyoo 1970 nrog kev qhia txog Sensurround hauv cov yeeb yaj kiab xws li Av qeeg, uas ua suab nrov nrov los ntawm cov subwoofers loj. Nrog lub advent ntawm lub compact cassette thiab lub compact disc nyob rau hauv lub xyoo 1980s, qhov yooj yim reproduction ntawm sib sib zog nqus bass thaj tsam yog tsis txwv los ntawm lub peev xwm ntawm ib tug phonograph cov ntaub ntawv stylus mus taug qab ib tug. zawj, thiab cov neeg tsim khoom tuaj yeem ntxiv cov ntsiab lus tsawg zaus rau cov kaw lus. Ib yam li ntawd, thaum xyoo 1990, DVDs tau nce ntxiv nrog "sib puag ncig suab" cov txheej txheem uas suav nrog Low-frequency effects (LFE) channel, uas tuaj yeem hnov qab siv subwoofer hauv tsev ua yeeb yam hauv tsev. Thaum lub sijhawm xyoo 1990, subwoofers kuj tau nrov zuj zus hauv cov tshuab tso suab hauv tsev, kev cai tsheb suab teeb tsa, thiab hauv PA system. Los ntawm xyoo 2000s, subwoofers tau dhau los ua neeg thoob ntiaj teb hauv lub suab txhawb zog hauv cov chaw ua si hmo ntuj thiab chaw ua yeeb yam.
Kuv yog Joost Nusselder, tus tsim ntawm Neaera thiab tus neeg lag luam cov ntsiab lus, txiv, thiab nyiam sim cov cuab yeej tshiab nrog guitar ntawm lub siab ntawm kuv txoj kev mob siab rau, thiab ua ke nrog kuv pab neeg, Kuv tau tsim cov ntsiab lus ntawm blog txij li xyoo 2020. los pab cov neeg nyeem siab ncaj nrog cov ntaub ntawv kaw lus thiab cov lus qhia guitar.
