Chii chekawo-kure kakawanda kubva subwoofer uye sei kuti zvakakodzera kugadzira

Configuration ano inzwi amplifying midziyo, nokusika komberedza ruzha zvinoratidza dzichipfekeka kuparadzana makwara. Kwakadaro Audio hurongwa zvinosanganisira kumberi uye neshure vakurukuri, nzvimbo inoshandiswa uye subwoofer.

Zvapedzisira zvinoshanda kuti kusika zvimwe ruzha migumisiro pajinga kakawanda siyana kubvira 20 kusvika 180 Herz. Kumboda nezvechisarudzo ichi rinoshandiswa kana uchiona nemavhidhiyo uye mafirimu ane zvikamu kuputika, chinonyengera nzvimbo zvitundumuseremusere uye mamiriro ezvinhu akafanana umo uchida scoring doro zvakakwana kuzunungusa mhepo.

Kazhinji, subwoofers yakagadzirirwa yezviri nheyo, kureva, vane zvavo pakuvara gudzazwi, simba wedzerai uye kuchinja. Anotonga uye Kurongwa zvinosanganisira huru mbiri mubato "pamwero» (Level) uye "cutoff kakawanda» (Crossover Frequency). Basa pamwero mubato kunonzwisisika, ichi murau umbirimi inzwi. Uye ndicho chikonzero nei configuration rechipiri, zviri pachena kwete zvose.

Kusiyana Broadband vakurukuri, subwoofer rine parinoperera rokumusoro neminondo kakawanda kwaasingasvikiri. Uyewo, basses vari rakakamurwa zvakadzama - 40 Hz, svikiro - 80 Hz, uye namatunhu - kusvika 160 Hz. Of iyo cutoff kakawanda wakaisirwa kudzika yakasvika nokuda acoustic kushanda zvinoenderana. Mune zvimwe zviitiko, kuita mukuru siyana bass pave manyoro inzwi Somuenzaniso, kana kuteerera mimhanzi kana kuona mafirimu pasina chinokosha Migumisiro akawedzerwa. Kana, zvisinei, kunoda zvakawanda inoomesera chaizvo tsinga yacho Fafitera Somuenzaniso, ari muchimiro makariita zvivako uye kuputika mapuraneti, kuti subwoofer akaputswa-kure kakawanda kunogona haachatauri pedyo infradiapazonu.

Zvazviri, yokumusoro kakawanda muganhu - nyore basa. Ichokwadi Physics zvinozivikanwa kuti vachikwanisa yacho Sefa vane pfuma panyaya yakaderera frequencies uye inductance - kusvikira kumusoro. Saka, zviri nyore LC-Sefa anogona zvinobudirira agopfigira kutsvakwa nzvimbo siyana, apo kuderedza mwero undesired chiratidzo chakarondedzera. Kuti "rambai panze" mukuru uye svikiro kakawanda mazano kune subwoofer, zvakakwana vakwanise yakafanana chiyamuro zviteshi ane capacitor duku - mashoma PF. Asi izvozvo chinyakare Sefa achava kuderera zvakare wakatsetseka kakawanda mhinduro, saka vari tsika magadzirirwo kwavo kwakaoma zvikuru.

Zvakare, cutoff kakawanda anopiwa uye mupise pamusoro goho Mureza kuenda gudzanzwi simba. Kuti aite izvi mukati mumuviri pedyo mutauri pepuranga pamwe capacitors uye inductors.

The cutoff kakawanda pakati LPF (yakaderera vanopfuura Sefa) Zvakanakisa inofanira kuchinjwa, kunyange rweruzhinji gadziriro basa akadaro arege kuva.

Rairira subwoofer marongero pachinhu dzimwe acoustic zvinoumba musha theatre hurongwa - zvinoda kushivirira uye kunyatsoita. A murau akanaka anonzi, umo bass chaibwinya kubva mberi uye komberedza vakurukuri vari vaisanganisa ne infra-yakaderera frequencies broadcasted kwavari, uye kwete "nharo" nemumwe, uyo ane simba. Nheyo "ari kwazvo nani" asingashandi pano.

Nokudaro, cutoff kakawanda kunokosha ezvinhu kuti kunovimbisa akarurama uye inowirirana chokupika zvinonyatsorehwa hurongwa.