Subwoofer (kapena sub) ndi woofer, kapena zokuzira mawu wathunthu, zomwe zimaperekedwa kuti zipangitsenso ma frequency otsika omwe amadziwika kuti bass.
Mafupipafupi amtundu wa subwoofer ndi pafupifupi 20-200 Hz pazinthu zogula, pansi pa 100 Hz pamawu omveka bwino, ndi pansi pa 80 Hz mu machitidwe ovomerezeka a THX.
Ma subwoofers amapangidwa kuti awonjezere kuchuluka kwa masipika otsika omwe amaphimba ma frequency apamwamba.
Ma subwoofers amapangidwa ndi woofer imodzi kapena zingapo zomwe zimayikidwa mumpanda wa zokuzira mawu - nthawi zambiri zopangidwa ndi matabwa - zomwe zimatha kupirira kupanikizika kwa mpweya pamene zimatsutsana ndi kusintha. Ma subwoofer amabwera m'mapangidwe osiyanasiyana, kuphatikiza bass reflex (yokhala ndi doko kapena radiator yopanda malire m'malo otsekeredwa), mawonekedwe opanda malire, odzaza nyanga, ndi mapangidwe a bandpass, omwe amayimira ma tradeoffs apadera pokhudzana ndi magwiridwe antchito, bandwidth, kukula ndi mtengo. Passive subwoofers ali ndi dalaivala wa subwoofer ndi mpanda ndipo amayendetsedwa ndi kunja amplifier. Ma subwoofers omwe amagwira ntchito amaphatikizapo amplifier yomangidwa. Ma subwoofers oyamba adapangidwa muzaka za m'ma 1960 kuti awonjezere kuyankha kwa bass ku machitidwe a stereo akunyumba. Ma Subwoofers adadziwika kwambiri m'zaka za m'ma 1970 ndikuyambitsa Sensurround m'mafilimu monga Earthquake, omwe amatulutsa mawu otsika kwambiri kudzera pa ma subwoofers akulu. Kubwera kwa makaseti a compact ndi compact disc m'zaka za m'ma 1980, kupanga kosavuta kwa mabasi akuya komanso mokweza sikunalephereke chifukwa cha luso la cholembera chojambula cha phonograph chotsata nyimbo. poyambira, ndipo opanga atha kuwonjezera zinthu zotsika pafupipafupi pazojambulira. Komanso, m'zaka za m'ma 1990, ma DVD adalembedwa mowonjezereka ndi "mawu ozungulira" omwe amaphatikizapo njira ya Low-frequency effects (LFE), yomwe imamveka pogwiritsa ntchito subwoofer m'mabwalo a zisudzo kunyumba. M'zaka za m'ma 1990, ma subwoofers adakhalanso otchuka kwambiri pamakina a stereo akunyumba, kuyikika kwama audio pamagalimoto, komanso PA System. Pofika m'ma 2000, ma subwoofers adakhala pafupifupi ponseponse pamakina olimbikitsira mawu m'makalabu ausiku ndi malo ochitirako makonsati.
Ndine Joost Nusselder, woyambitsa Neaera komanso wotsatsa malonda, abambo, ndipo ndimakonda kuyesa zida zatsopano ndi gitala pamtima pa zomwe ndimakonda, ndipo pamodzi ndi gulu langa, ndakhala ndikupanga zolemba zakuya zamabulogu kuyambira 2020. kuthandiza owerenga okhulupirika ndi maupangiri ojambulira ndi gitala.
