Iyo Yakaderera Bass Nyanzvi - Chikamu 2

Subwoofers dzaisagara dzichishanda, dzaisagara dzakabatana nedzimba dzemitambo, uye dzaisagara dzichivashandira pakutanga. Vakatanga mabasa avo mune yakakurumbira tekinoroji mukupera kwe80s, mune stereo masisitimu akabatana ne "nguva dzose" stereo amplifiers pane akawanda-channel vanogamuchira - nguva yeimba yemitambo yakanga ichangosvika.

System 2.1 (subwoofer ine peya yemasatellite) yaive imwe nzira kune yechinyakare vaviri vatauri (onawo: ) pasina chinodiwa. Uyu aifanirwa kupa masimba ese ari pasi-pasi-akasefa subwoofer uye anofamba akakwira-pasi akasefa satellite, asi mutoro uyu hauna kana kumbosiyana maererano neiyo impedance "inoonekwa" neamplifier kubva kune iyo yakawanda-nzira yegudzanzwi. system. Iyo inosiyana chete mukupatsanurwa kwemuviri kweiyo yakawanda-bhendi system mune subwoofer uye satellite, padivi remagetsi zvakangofanana (subwoofers kazhinji yaive nemawoofer maviri akabatanidzwa akazvimirira kune maviri chiteshi, kana imwe maviri-coil speaker).

Iyo amplifier bhodhi ine chikamu chekutonga inogara iri kumashure - isu hatifanirwe kuishanyira mazuva ese

Sistimu 2.1 vakatowana mukurumbira wakawanda mubasa iri (Jamo, Bose), vakazokanganwika, nokuti vakadzvinyirirwa nevakawanda. home theatre systemso, kare pasina kukundikana ne subwoofers - asi inoshanda. Aya akatsiva passive subwoofers, uye kana nhasi munhu afunga nezve 2.1 sisitimu yakagadzirirwa kuteerera mimhanzi (kazhinji), munhu angangofunga nezve system ine inoshanda subwoofer.

Pavakaoneka multichannel mafomu i home theatre systems, vakaparura yakakosha yakaderera-frequency chiteshi - LFE. Sezvineiwo, amplifier yake inogona kunge iri pakati peakawanda emagetsi amplifier eAV amplifier, uye ipapo iyo yakabatana subwoofer inongove isina kuita. Nekudaro, pakanga paine kupokana kwakawanda mukududzira chiteshi ichi zvakasiyana - iyi amplifier inofanirwa "kubviswa" kubva kuAV mudziyo uye yakabatanidzwa ne subwoofer. Kuvonga kune izvi, zvakanyatsokodzera kwaari kwete chete maererano nemasimba, asiwo maererano nemaitiro. Iwe unogona kuigadzirisa uye kuwana yakaderera cutoff frequency pane yakafanana saizi passive subwoofer uye yakafanana mutauri, shandisa inoshanda uye inogadzirika yakaderera-pass sefa (passive pamabhasi akadaro angave ane simba uye anodhura), uye zvino wedzera mamwe maficha. . Muchiitiko ichi, iyo multichannel amplifier (receiver) "yakasunungurwa" kubva kune simba rekugadzirisa simba, iro mukuita rinofanira kunge rakanyanya kushanda (mumugwagwa weLFE, simba rinodiwa rinofananidzwa nesimba rose remamwe marudzi ose ehurongwa. ) !), izvo zvaizomanikidza kana kusiya iyo inoyevedza pfungwa yesimba rimwechete kune ese materminal akaiswa mune anogamuchira, kana kudzikamisa simba reLFE chiteshi, kuderedza kugona kweiyo system yese. Pakupedzisira, izvi zvinobvumira mushandisi kuti asarudze subwoofer zvakasununguka pasina kunetseka nezvekuienzanisa neamplifier.

Kana kuti pamwe nemimhanzi stereo system Ko passive subwoofer iri nani here? Ngatipindurei nenzira iyi: Kune ma multichannel / cinema masisitimu, inoshanda subwoofer iri nani, iyo pfungwa yehurongwa hwakadaro ndeyechokwadi mune zvese, sezvatakambokurukura. Kune stereo / mimhanzi masisitimu, inoshanda subwoofer zvakare inonzwisisika mhinduro, kunyangwe pasina akawanda kupokana mukufarira kwayo. A passive subwoofer mumasisitimu akadaro anoita zvishoma zvine musoro, kunyanya kana isu tine simba (stereo) amplifier, asi ipapo isu tinofanirwa kufunga zvakanaka uye kunyange kugadzira chinhu chose. Kana kuti, isu hatizowana akagadzirira-akagadzirwa, passive 2.1 masisitimu pamusika, saka isu tichamanikidzwa kuabatanidza.

Tichagadzirisa sei kupatsanurwa? Iyo subwoofer inofanirwa kunge iine yakaderera pass sefa. Asi isu tichaunza yakakwira-pass sefa yevatauri vakuru, iyo zvino ichaita sema satellite? Kugoneka kwechisarudzo chakadaro kunoenderana nezvinhu zvakawanda - bandwidth yevatauri ava, simba ravo, pamwe nesimba reiyo amplifier uye kugona kwayo kushanda nekuderera impedance; zvingave zvakaoma kuvhura vatauri uye subwoofer panguva imwe chete (iyo impedances yavo ichabatanidzwa mukufanana uye iyo impedance inoguma ichave yakaderera). Saka… chekutanga, subwoofer inoshanda yakanaka uye yepasi rose mhinduro, uye isingaite iri mumamiriro ezvinhu akasiyana uye ine ruzivo rwakakura uye ruzivo rweamateur wesisitimu yakadai.

Mutauriri wekubatanidza

Iyo yakapfuma zvakanyanya seti yezvekubatanidza - RCA zvemukati, magudzanzwi uye, kashoma, HPF chiratidzo chinobuda (yechipiri peya yeRCA)

Kubatana uku, kwaimbove kwakanyanya kukosha kune subwoofers, kwakarasikirwa nekukosha kwayo nekufamba kwenguva mumaAV system, kwatinowanzo kuendesa. LFE chiratidzo chakaderera kune imwe RCA socket, uye "zvichingoitika" pane mbiri yeRCA stereo yekubatanidza. Nekudaro, kubatana netambo yemukurukuri kune zvakanakira uye vanotsigira. Kubatana kwegudzanzwi kunove kwakakosha mumasisitimu estereo, zvese nekuti haasi ese maamplifiers ane yakaderera-level zvinobuda (kubva kune preamplifier) ​​uye nekuda kweiyo chaiyo masaini mamiriro. Asi pfungwa yacho haisi zvachose kuti ichi chiratidzo chepamusoro-soro; iyo subwoofer haipedzi simba kubva kune yekunze amplifier kunyangwe neiyi kubatana, nekuti yakakwira yekupinza impedance haibvumire; Uyezve, nekubatanidza uku, kufanana nechepasi-level (kune RCA connectors), chiratidzo chinowedzerwa ne subwoofer circuits.

Icho chokwadi ndechekuti neiyo (yakasimba) yekubatanidza, chiratidzo kune subwoofer chinobva kune zvakafanana zvinobuda (kunze amplifier), ine chikamu chimwechete uye "hunhu" sevatauri vakuru. Kupokana uku kwakaoma, kubva chiratidzo chinoshandura subwoofer amplifier mberi, kunze, chikamu chichiri kuda kugadziriswa, asi pfungwa yekuenderana kwemasaini anoenda kune vatauri uye subwoofer inokwezva kufungidzira ... chete pane zvese zvinodiwa. outputs.

Liquid phase kana jump phase?

Midziyo yakajairika: nhanho uye kusefa yakatsetseka, zvikamu zvinotsikwa; peya ye stereo RCA pamwe nekuwedzera LFE yekuisa

Matatu makuru anoshanda subwoofer anodzora anotendera iwe kuti uchinje nhanho (vhoriyamu), upper frequency limit (kunonzi kuchekwa) i chikamu. Iwo maviri ekutanga anowanzo imvura, yechitatu - kutsvedzerera kana kutsemuka (nzvimbo mbiri). Uku kubvumirana kwakakomba here? Vazhinji vagadziri vanosarudza kuita izvi kwete chete mune zvakachipa subwoofers. Kuisa chikamu chaicho, nepo kuchidikanwa kurongeka kwakanaka, kuri kuita basa risinganzwisisike uye rinowanzo furatirwa nevashandisi. Nepo tuning yakatsetseka iri theoretically nzira yakanakisa yekuisa subwoofer kumasatellite, inoita kuti basa rinyanye kunetesa uye saka rakaoma uye kuregeredzwa. Asi nekutonga kwemazinga uye kusefa, injodzi chaiyo ... Nekubvumirana kune kubvumirana kwakadaro (chinja pane knob), tinokurudzira vashandisi kuti vaedze nenzira iri nyore: ingoona kuti ndeipi nzvimbo yekushandura iri nani (mabhasi akawanda. zvinoreva zvirinani chikamu chiyero), pasina kutsvaga kunonetesa kweiyo yakanaka nenhamba huru yemafambisirwo emubato. Saka kana isu tiine hudzoro hwakatsetseka, ngatiedzei zvinzvimbo zvakanyanyisa, i.e. zvakasiyana ne180 °, uye isu tichanyatsoona mutsauko. Mumamiriro ezvinhu akaipisisa, chikamu chakasarudzwa chisina kururama chinoreva gomba rakadzika muunhu, uye chete "pasi-kugadziriswa" zvinoreva kuderedza.

Remote control

Kusvika ikozvino, vashoma chete ve subwoofers vakashongedzerwa remote control neremote control - kwavari ichiri chidimbu cheumbozha chemidziyo, kunyangwe ichinyatsoshanda, nekuti kuseta subwoofer kubva panzvimbo yekuteerera kunobatsira zvakanyanya mukuwana mhedzisiro yakanaka. Zvirinani kudzidzira chero imwe nzira pane kumhanya nekudzoka pakati pechigaro uye subwoofer. Nekudaro, zvinotarisirwa kuti iyo iri kure ichave yakakosha midziyo, uye subwoofer tuning ichave nyore uye yakanyatso tenda kune mashandisirwo emafoni efoni - iyi mhinduro yakachipa pane kuwedzera kure, uye zvakare inovhura yakawanda. mikana yakawanda.

Kungwarira! Mukurukuri mukuru!

Inowanikwa subwoofers kubva vatauri vakuru Iwo woofers ane zvishoma ... ane ngozi. Kugadzira gudzanzwi hombe hakusi hunyanzvi hukuru - dhayamita hombe bhasiketi uye diaphragm hazvidhure zvakanyanya, zvinonyanya kutsamira pamhando (uye saka saizi) yemagineti system, iyo inosarudza akawanda akakosha paramita. Pamusoro penheyo iyi, nekusarudzwa kwakakodzera kwemamwe maitiro ekugadzira (coil, diaphragm), simba, kushanda zvakanaka, kuderera kweresonance, pamwe chete nemhinduro yakanaka yekukurudzira inovakwa. Gudzanzwi guru uye risina simba injodzi, kunyanya muhurongwa bass reflex.

Ichi ndicho chikonzero nei vamwe vanhu vachingwarira mawoofer makuru (mumagudzanzwi), kazhinji vachivapa mhosva yeku "kunonoka", sezvinoratidzwa nediaphragm inorema. Nekudaro, kana inorema oscillatory system ikamisa "drive" inoshanda zvakakwana, ipapo zvese zvinogona kunge zvakarongeka, zvese zviri mugudzanzwi uye mune inoshanda subwoofer. Asi chenjerera - kushaya simba kwemagineti hakuzobhadharwi nesimba repamusoro reamplifier kana kushanda kwayo (ikozvino, nezvimwewo), izvo zvinopiwa nevamwe vanogadzira. Ikozvino kubva kune booster yakafanana nemafuta, uye kunyange iyo yakanakisa mafuta haizonyatso kuvandudza kushanda kweinjini isina simba.

Kabati yakafanana inotaridzika, gudzanzwi (kunze) uye mazana ewatts anogona kuburitsa mhedzisiro dzakasiyana, zvichienderana nesimba uye gadziriso yegudzanzwi drive system.

Kunyanya kana iri chikamu inverter "yakavhuniwa" negineti isina simba (uye / kana yakanyanya kudiki vhoriyamu kabati), mhinduro yekumanikidza haigone "kugadziriswa" nesimba kubva kune amplifier, iyo inogona kushandiswa kugadzirisa frequency mhinduro. , saka, mukushanda subwoofers - kakawanda kupfuura mutauriri - inoshandiswa muviri wakavharwa. Asi bass reflex inonyengedza nekushanda kwayo kwepamusoro, inogona kutamba zvakanyanya, zvinoshamisa ... uye kururamisa kwekuputika hakuna kunyanya kukosha muimba yemitambo. Zvakanakisisa kuva nezvose panguva imwe chete, izvo zvinoda zvakasimba (mumativi ose) gudzanzwi, simba rakawanda kubva kune amplifier uye yakavharirwa ine optimal volume. Zvese izvi zvinoda mari, saka yakakura uye ine hunhu subwoofers kazhinji haina kudhura. Asi pane "zvikonzero", asi kuti uzviwane, hazvina kukwana kutarisa subwoofer kubva kunze, kuverenga maitiro ayo evaridzi, kana kunyange kuvhara mukati uye kutarisa zvishoma zvigadziriswe zvigadziriswa muimba isina kurongeka. Zvakanakisisa kuziva "zvakaoma chokwadi" ... mukuedza kwedu uye zviyero.

Grille - kubvisa?

W magudzanzwi akawanda Dambudziko rekuita kwemask pakugadzirisa mashandiro akakomba zvekuti tinozvifunga muzviyero zvedu nekuenzanisa mamiriro ezvinhu (paiyo axis) ine uye isina mask. Anenge nguva dzose musiyano (kukuvadza kwegrille) uri pachena zvokuti tinokurudzira kuibvisa, dzimwe nguva zvakajeka.

Panyaya ye subwoofers, isu hatizvinetse neizvi zvachose, nekuti inenge isina grille inoshandura mashandiro acho kusvika pamwero unooneka. Sezvatakatsanangura kakawanda, chaiwo gratings vanokanganisa mwaranzi kwete zvakanyanya nezvinhu izvo gudzanzwi rinovharwa, asi nefuremu iyo chinhu ichi chakatambanudzwa. Kudzikisira kwakaunzwa neakajairika matishu idiki, asi mafungu mapfupi epakati uye akakwira ma frequency anoratidzwa kubva kune scaffolds, anokanganisa uye nekudaro anogadzira mamwe maitiro asina kuenzana. Panyaya ye subwoofers, mafungu akadzika-frequency anoburitswa navo akareba kwazvo (maererano nehupamhi hwemafuremu), saka haaratidzike kubva kwavari, asi "kutenderera" chipingamupinyi chakadai semipendero cabinet, ichipararira zvakasununguka uye kumativi ose. Nokudaro, subwoofers inogona kusara yakachengeteka ine grills, chero bedzi ... yakasimba uye yakanyatsogadziriswa kuitira kuti irege kupinda mukudengenyeka kune mamwe mafrequency uye mazinga epamusoro, izvo dzimwe nguva zvinoitika.

Wireless transmission inowanzosarudzika, inoda kutengwa kweiyo yakakosha module, asi chiteshi chiri mu subwoofer chatochimirira.

Omnidirectional

Pakuyera ma subwoofers, isu hatitarise maitiro ekutungamira, saka isu hatiyere maitiro ekugadzirisa pamakona akasiyana. Zvakaoma kutaura nezve axis iyo kuyerwa kunoitwa, nekuti iyi ndiyo inonzi pedyo-munda kuyerwa - (kusvika kureba kwekushanda kwayo kunobvumira). Low frequencies nekuda kwehurefu hwehurefu, iyo yakakura zvikuru kudarika ukuru hwewoofer yakakura uye yakavharidzirwa, inoparadzira omnidirectionally (spherical wave), ndicho chikonzero chikuru chekushandiswa kwe subwoofer systems muhuwandu. Saka hazvina basa kana iyo subwoofer inongedza zvakananga kumuteereri kana zvishoma kudivi, inogona kunge iri mupasi pasi ... Saka hapana chikonzero chekunyatso "vavarira" iyo subwoofer panzvimbo yekuteerera, izvo zvisingareve kuti hazvina basa zvachose kuti iripi .