Ungayikhetha njani i-subwoofer esebenzayo kunye ne-passive kwithiyetha yasekhaya

Namhlanje siza kuthetha ngenkqubo yesithethi evelisa kwakhona izandi eziphantsi kakhulu kwinkqubo yethiyetha yasekhaya – i-subwoofer. Siza kuthetha ngeentlobo kunye neempawu zobugcisa bezixhobo, sichaze iimodeli eziphumelele kakhulu, ukwabelana ngemiyalelo yokudibanisa, ukuqwalasela, kunye nokuhlanganisa i-subwoofer ngokwakho.

I-Subwoofer: ingcamango kunye nenjongo kwithiyetha yasekhaya

I-subwoofer sisixhobo esivelisa kwakhona izandi zeyona ndawo iphantsi kakhulu – ukusuka kwi-5 Hz (oko kukuthi, kuquka i-infrasound). Ngexesha elifanayo, akusiyo ikholomu ezimeleyo, kodwa izalisekisa inkqubo yomsindo.

Phawula! Izandi zezandi ezisezantsi azibonakali kakuhle, oko kukuthi, kunzima ukumisela umthombo wesandi ngeendlebe. Kule nkalo, kwinkqubo ye-stereo yeendlela ezininzi, sincoma ukufaka i-woofer enye kuphela. Olu khetho loqwalaselo luya kugcina indawo kwaye lunciphise ixabiso elipheleleyo lenkqubo yesithethi ngaphandle kokuncama umgangatho wesandi. I-Subwoofers, njengomthetho, isetyenziswe kwezo nkqubo ze-stereo ezenzelwe ukubukela iifilimu ezizaliswe yimiphumo ekhethekileyo; kunye nokumamela umculo wanamhlanje one-bass. Ngenxa yoko, sifumana isandi esinamandla kunye nenyani.

Iindidi zesubs ezisetyenziswa kwiithiyetha zasekhaya

Ngokunxulumene ne-audio frequency amplifier, iiwoofers zahlulwe zibe zisebenzayo kunye ne-passive.

1. I-subwoofer esebenzayo , eyaziwa ngokuba yi-woofer, iyahlukaniswa nobukho be-amplifier eyakhelwe ngaphakathi kunye ne-crossover esebenzayo. Oko kukuthi, idibanisa ezo zixhobo zifunyenwe ngokwahlukileyo. I-subwoofer enjalo ineziphumo zomgca kunye negalelo, kwaye inokufumana isignali kunye neefrikhwensi eziphezulu ezisele zisikiwe, oko kukuthi, inqanaba lomgca. Kule meko, i-crossover filter ayifuni. Uninzi lwee-subwoofers ezisebenzayo nazo zineendlela ezongezelelweyo zokulungisa iimeko.
2. Kwelinye icala, isithethi sokwenziwa asixhotyiswanga ngeamplifier yamandla. Kwaye idibanisa i-amplifier yangaphandle okanye izithethi eziphambili ze-stereo ngokufanayo. Eyona nto ingathandekiyo yokutshintsha okunjalo ngumthwalo owongezelelweyo kwi-amplifiers ephumayo, ngamanye amaxesha iyanciphisa uxinzelelo lwesandi ngokubanzi. Ngaloo ndlela, i-crossover passive endleleni esuka kwi-amplifier ukuya kwizithethi eziphambili nazo zinefuthe elibi kwiipropati ze-acoustic. I-subwoofer yokwenziwa kwe-passive “ifuna” ukufakela, kwaye ayinayo i-axiliary tuning capabilities.

I-amplifier kufuneka ibe ubuncinane i-10-15 ipesenti enamandla ngaphezu kwe-subwoofer ye-passive yamandla abhengeziweyo (kunye nezithethi).

Iinkcazo zokunika ingqalelo

Xa ukhetha i-subwoofer, sinikela ingqalelo kwiimpawu ezisisiseko zobugcisa besixhobo:

1. Enye yezona zinto zibalulekileyo luluhlu lwamaza . Amandla emveliso ahlulwe ngokwemiqathango kwii-octave ezininzi, ezizezi: i-bass enzulu (20 – 40 Hz), ephakathi (40 – 80 Hz) kunye nephezulu (80 – 160 Hz). Ngexesha elifanayo, uluhlu lweemodeli ezininzi luyi-40 – 200 Hz. Iifrikhwensi ezivela kwi-5 Hz zivelisa imodeli enye kuphela.
2. Ipharamitha elandelayo iphezulu uxinzelelo lwesandi , ngamanye amazwi, umthamo omkhulu we-subwoofer.

Inika umdla ukwazi. Elona nqanaba lisezantsi elibonwa ngumntu libizwa ngokuba ngumda wokuva. Ixabiso layo ngu-0 dB. Elona liphezulu lingumda weentlungu – 120 dB.

1. Uvakalelo lwe-subwoofer ngumlinganiselo we-avareji yoxinzelelo lwesandi ukuya kwi-1 W yamandla kunye ne-1 m yomgama Ngokuqhelekileyo, ukuphakama kwexabiso le-sensitivity (dB), ngcono isandi senkqubo yesithethi.
2. . _ Apha siqonda ukuphindaphinda apho icandelo lomqondiso lenzeka khona. Ngokomzekelo, ukuba i-frequency crossover yi-90 Hz, ngoko ke zonke iinqununu zesignali ezinoluhlu lwe-frequency ye-20 – 90 Hz ziya kondliwa kwi-subwoofer, kwakhona, umqondiso onamaza ngaphezu kwexabiso elichaziweyo uya kuthunyelwa kwizithethi eziphambili.
3. i-subwoofer diameter . Uyilo lwe-subwoofer enclosure iphinda ichaze ubukhulu becala iimpawu ze-acoustic zesixhobo. Kukho iintlobo ezi-3 eziphambili zoyilo lwe-subwoofer dynamic bass head – i-bandpass, ivaliwe kunye ne-inverter yesigaba. Uhlobo ngalunye lunezibonelelo zalo zombini kunye nezinye izinto ezingeloncedo.

Iikhrayitheriya zokukhetha

Kubonakala ngathi i-subwoofer ibiza kakhulu kwaye inkulu, ingcono. Kodwa ukhetho alubonakali kangako. Ukuthetha malunga neendlela zokukhetha, kubalulekile ukuqwalasela injongo kunye nendawo yokusetyenziswa kwe-subwoofer.

Ukukhetha i-subwoofer yegumbi

Xa ukhetha i-subwoofer ukongeza kwi-theater yasekhaya, qwalasela ubungakanani begumbi. Ukuba sithetha ngegumbi eliqhelekileyo, umyinge wommandla we-15 – 20 square metres. m., isithethi esisezantsi-frequency ukusuka kumgca ofanayo njengenkqubo yonke ye-DC ifanelekile. Ngokuqhelekileyo le subwoofer enobubanzi obuyi-8 – 10 intshi. Ukuba umsebenzi kukuvakalisa iholo enkulu, ukusuka kwi-40 sq. m, kucetyiswa ukuba uthenge izixhobo ezininzi. Ubungakanani be-subwoofer bubalulekile. Isenokubonakala ingaqhelekanga, kodwa ii-hertz ezimbalwa zokugqibela zoluhlu lwamaza ziya kubiza kakhulu. Ke ngoko, ukwenza uxinzelelo lwesandi olufanelekileyo kwigumbi elikhulu kuya kuxabisa kakhulu. Kodwa, ngelishwa, oku akusoloko kusenzeka. Emva koko sifaka i-sub apho ayiyi kufumana ngaphantsi, ngokuqwalasela imithetho ethile. Oko kukuthi:

1. Ukufumana i-bass engaphezulu, siyifake ecaleni kodonga oluthwele umthwalo, kwisandi esithambileyo – ngasemva kwegumbi.
2. Sihambisa i-subwoofer nge-inverter yesigaba ukusuka eludongeni ngo-20-30 cm.
3. Musa ukubeka isithethi ecaleni kodonga olucekethekileyo, ifestile, ibhodi esecaleni, njl. Xa i-subwoofer isebenza, iindawo ezinjalo ziya kungcangcazela, eziya kongeza ukungcola kwisandi.

Uqhagamshelwano

Kwinkqubo yokudibanisa i-subwoofer, ngokomgaqo, akukho nto inzima. Sidibanisa kwinkqubo ngenye yeendlela ezintathu. Makhe siqwalasele nganye.

1. Inketho yokuqala, eyona ilula kwaye ixhaphake kakhulu, kukudibanisa itshaneli yeziphumo eziphantsi-frequency (LFE okanye i-Low Frequency Effect) kwi-DC receiver. Ifanelekile phantse yonke i-AV receiver, kunye ne-amplifier enemveliso eyahlukileyo ye-subwoofer. Sisebenzisa i-subwoofer cable ukuxhuma. Amagalelo kunye neziphumo zezi zilandelayo: kumamkeli, ngokuqhelekileyo “SUB OUT” okanye “Subwoofer Out”; ukwenzela i-sub – “LFE INPUT”, “LINE IN”. Emva kokuba ungalibali ukuplaga isixhobo kwindawo yokuphuma ekufutshane. Ukuba kukho enye kuphela ikhonkco efunekayo kwi-receiver, kwaye kufuneka udibanise izixhobo ezininzi, sincoma ukusebenzisa i-subwoofer cable ene-Y.
2. Ukuba akukho galelo likhankanywe ngasentla kunye neziphumo kwizixhobo ezikhoyo, sikhangele abanye, kwaye sidibanisa usebenzisa enye yezi zimbini zingezantsi.

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Uqhagamshelo lwethiyetha bhanyabhanya[/caption]

Ukumisela

Emva kokufaka i-subwoofer, kunye nokuxhuma kumthombo wesignali kunye nenethiwekhi, siqhubela phambili ukuseta izixhobo. Khangela kwaye, ukuba kuyimfuneko, lungisa ezi parameters zilandelayo:

• Ukuba kukho i-high-pass filter (HPF) umlawuli, sibeka ixabiso eliphezulu elivumelekileyo – ngokuqhelekileyo i-120 Hz.
• Siseta ukutshintshwa kwesigaba “0” okanye “Esiqhelekileyo”, umlawuli kwindawo egqithisileyo (“0”).
• Kunconywa ukuseta ukulawulwa kwevolumu kwi-1/3 yexabiso eliphezulu.
• I-frequency ye-crossover ekhuthazwayo yi-80 Hz.
• Kwi-AV receiver, khetha u-“Stereo” njengemowudi yesandi.

Uyenza njani i-subwoofer yethiyetha yasekhaya

Ukuba i-subwoofer enamandla iyadingeka kwi-theater yasekhaya, kodwa akukho mali eyaneleyo ukuyithenga, unokwenza izixhobo ngokwakho. Kwisixhobo esenziwe ekhaya uya kufuna:

• isithethi esiqhelekileyo (thatha i-10-inch Pioneer speaker, imodeli TS-W255C; ixabiso eliqhelekileyo liyi-ruble ezingama-800);
• ukunikezelwa kwamandla, umzekelo, kwi-PC endala (500 W);
• iamplifier yemoto ene-crossover eyakhelwe-ngaphakathi (i-Lanzar Heritage);
• i-subwoofer yemoto engabizi kakhulu;
• ikholamu;
• iingcingo zezithethi;
• I-Fiberboard yesakhelo (ububanzi obucetyiswayo – 18 mm);
• ipeyinti, primer.

Masingene emsebenzini.

1. Siqala ngoyilo lwetyala . Ngenxa yale njongo, siya kusebenzisa isoftware yokubonwa kwe-3D – Sketchup. Imilinganiselo ibalwa kusetyenziswa iWinISD. Kwimveliso, sifumene i-cube-shaped case. Ubude becala ngalinye buyi-35 cm. I-port yenzelwe ezantsi, ngelixa amandla avumelekileyo aphumayo angama-32 Hz.
2. Kwinqanaba elilandelayo, sinqumle isakhelo kwi-fiberboard . I-fuse inokwenziwa kwi-neoplene, enohlahlo lwabiwo-mali kakhulu.
3. Inyathelo lesithathu kukwenza izibuko. Ukwenzela le njongo, i-110 mm yobubanzi begutter yeplastiki yayisifanela ngokugqibeleleyo.
4. Emva koko, sihlanganisa kwaye sincamathelise isakhelo sisebenzisa iglue yokhuni oluphezulu.
5. Ukusebenzisa i-glue kunye ne-silicone sealant, sifaka i-port ehlanganiswe ngaphambili kwisakhelo.
6. Sika kwaye ugaye imingxuma.
7. Sayilungisa i-case kwimigangatho emininzi. Kwaye upeyinte phezu kwayo ngepeyinti yemoto.
8. Siqhubeka nokusebenza ngaphakathi kwetyala. Sithatha i-insulation, kwaye ngoncedo lwe-stapler yokwakha sidibanisa izinto eziphathekayo kwiindonga zesakhelo. Ngaloo ndlela, siyakuphepha ukugragrama ngokugqithiseleyo xa sivakalisa isandi.
9. Inqanaba lokugqibela elilandelayo kukunyusa ukunikezelwa kwamandla, iingcingo zomhlaba, i-amplifier.

Ngenxa yoko, sifumana i-subwoofer enesidima kakhulu ngemali encinci. Iindleko zesixhobo malunga ne-2.5 amawaka eeruble.

Ungayiqhawula njani i-subwoofer ukusuka kwindawo yeqonga yasekhaya ukuze ilungiswe

Ukuwisa i-subwoofer okanye ukukrazula ngamandla iyunithi kunokonakalisa iingcingo. Oku kuya kubangela isandi esincwinayo xa silayitiwe okanye ezinye iimpazamo ezimandundu. Ukulungisa ingxaki, isixokelelwano sesithethi esisezantsi-frequency kuya kufuneka sidityaniswe. Ulandelelwano lokucazululwa luhamba ngolu hlobo lulandelayo:

• qhaqha ngononophelo i-subwoofer case;
• Hlukanisa isithethi kwisakhelo.

Kubonakala ngathi yonke into ilula kakhulu. Kodwa xa udibanisa i-sub, kubalulekile ukuqwalasela inani lee-nuances.

• Iimeko zayo nayiphi na i-subwoofer zivula ngokuqinileyo . Kwizithethi zezinye iifemu, udonga lwangasemva lubotshelelwe ngezikrufu ezine okanye ezintlanu. Abanye abavelisi abakhawulelwanga kolu hlobo lwe-fastener, kunye ne-glue iindawo; okanye sebenzisa uhlobo lokuqinisa “kwi grooves”. Ngoko ke, ukuqhaqha ityala, unokufuna i-screwdrivers encinci ye-flat kunye ne-Phillips, imela yokukrazula iglue.

Phawula! Vula i-case ngokukhawuleza ukuze ungonakalisi iingcingo kunye nezinye izinto zangaphakathi ze-subwoofer.

• Isithethi ngaphakathi kwimeko sinokudibaniswa kunye ne-screws kunye neglue . I-Panasonic subwoofers ine-cable compartment eyahlukileyo. Ukujonga ingqibelelo yeentambo, i-compartment ivuliwe. Kukwacetyiswa ukuba ufote indawo yeengcingo kwiinqanaba ezahlukeneyo zokuqhaqha i-subwoofer. Oku kuya kwenza lula kakhulu inkqubo yokubuyela umva – indibano ezayo yenkqubo.

Siyathemba ukuba uphononongo lwethu luye lwanceda ukujongana nayo yonke imibuzo ekhoyo.