Kwinkqubo yomsindo, ukutshiswa kweyunithi yesithethi yintloko kakhulu kubasebenzisi beaudio, nokuba ikwindawo ye-KTV, okanye ibha kunye nomboniso.Ngokuqhelekileyo, umbono oqhelekileyo kukuba ukuba umthamo we-amplifier yamandla ujike kakhulu, kulula ukutshisa isithethi.Enyanisweni, zininzi izizathu zokuba isithethi sidinwe.
1. Ulungelelwaniso olungekho ngqiqweni lweizithethikwayeizikhulisa-mandla
Abahlobo abaninzi abadlala i-audio baya kucinga ukuba amandla okukhutshwa kwe-amplifier yamandla makhulu kakhulu, eyona nto ibangela umonakalo kwi-tweeter.Enyanisweni, akunjalo.Kwizihlandlo zobuchwephesha, isithethi singakwazi ukumelana nomothuko womqondiso omkhulu ngokuphindwe kabini kumandla alinganisiweyo, kwaye sinokumelana namaxesha ama-3 ngoko nangoko.Incopho yothusa kabini amandla alinganisiweyo ngaphandle kweengxaki.Ngoko ke, kunqabile kakhulu ukuba i-tweeter itshiswa ngamandla aphezulu e-amplifier yamandla, kungekhona ngenxa yempembelelo enamandla engalindelekanga okanye ukukhala kwexesha elide lombhobho.
Xa umqondiso ungaphazamiseki, amandla ombane wexesha elifutshane eligqithisiweyo liwela kwi-woofer enegunya eliphezulu, elingagqithisi amandla exesha elifutshane lesithethi.Ngokuqhelekileyo, ayiyi kubangela ukutenxa kokusasazwa kwamandla esithethi kwaye yonakalise iyunithi yesithethi.Ngoko ke, phantsi kweemeko zokusetyenziswa ngokuqhelekileyo, amandla okuphuma okulinganiswayo kwe-amplifier yamandla kufuneka abe ngamaxesha angama-1--2 amandla alinganisiweyo wesithethi, ukwenzela ukuba kuqinisekiswe ukuba i-amplifier yamandla ayibangeli ukuphazamiseka xa kusetyenziswa amandla esithethi.
2. Ukusetyenziswa okungafanelekanga kwezahlulo zamaza
Ukusetyenziswa okungafanelekanga kwendawo yokwahlula i-frequency terminal ye-input terminal xa ulwahlulo lwangaphandle lwangaphandle lusetyenziswa, okanye uluhlu olungenangqiqo lwe-frequency yokusebenza kwesithethi lukwangunobangela womonakalo kwi-tweeter.Xa usebenzisa i-frequency divider, indawo yokwahlula amaza kufuneka ikhethwe ngokungqongqo ngokoluhlu lwamaza okusebenza lwesithethi esinikwe ngumenzi.Ukuba i-crossover point ye-tweeter ikhethwe ukuba ibe phantsi kwaye umthwalo wamandla unzima kakhulu, kulula ukutshisa i-tweeter.
3. Ukulungelelaniswa okungafanelekanga kwe-equalizer
Ukulungelelaniswa kokulinganisa nako kubalulekile.Isilinganisi samaza sisetelwe ukuhlawula iziphene ezahlukeneyo zommandla wesandi sangaphakathi kunye nokuphindaphinda okungalinganiyo kwezithethi, kwaye kufuneka kulungiswe ngohlalutyi lwe-spectrum okanye ezinye izixhobo.Iimpawu zosasazo lwefrikhwensi emva kokulungiswa kweempazamo kufuneka zibe mcaba ngaphakathi kuluhlu oluthile.Iituni ezininzi ezingenalwazi lwesandi ziqhuba uhlengahlengiso ngokuthanda kwazo, kwaye nabantu abambalwa banyusa amaza omoya aphezulu kunye neenxalenye zefrikhwensi ephantsi yesilinganisi phezulu kakhulu, besenza imilo ethi "V".Ukuba ezi frikhwensi zonyuswe ngaphezulu kwe-10dB xa kuthelekiswa nezandi zemidrange (isixa sohlengahlengiso sesilinganisi siqhele ukuba yi-12dB), ayipheleli nje ekugqwethekeni kwesigaba okubangelwa sisilinganisi okuya kubeka umbala obukhali kwisandi somculo, kodwa kwakhona kubangele i-treble ngokulula. iyunithi yomsindo Utshiswe ngaphandle, olu hlobo lwemeko lukwangoyena nobangela wokutshisa izithethi.
- Ukulungiswa komthamo
Abasebenzisi abaninzi bamisela i-attenuator ye-post-stage amplifier yamandla kwi-6dB, -10dB, oko kukuthi, i-70% --80% yeqhosha levolumu, okanye indawo eqhelekileyo, kunye nokunyusa igalelo lenqanaba langaphambili ukuphumeza umthamo ofanelekileyo.Kucingelwa ukuba isithethi sikhuselekile ukuba kukho umda kwi-amplifier yamandla.Enyanisweni, oku kukwaphosakele.Iqhosha lokuthomalalisa le-amplifier yamandla lithoba isignali yegalelo.Ukuba igalelo le-amplifier yamandla lincitshisiwe yi-6dB, oko kuthetha ukuba ukugcina umthamo ofanayo, inqanaba elingaphambili kufuneka likhuphe i-6dB ngaphezulu, i-voltage kufuneka iphindwe kabini, kwaye i-headroom eguqukayo ephezulu yegalelo, iya kunqunyulwa phakathi. .Ngeli xesha, ukuba kukho umqondiso omkhulu ngequbuliso, imveliso iya kulayishwa kakhulu nge-6dB kwangoko, kwaye i-wave wave enqunyiweyo iya kuvela.Nangona i-amplifier yamandla ingalayishwanga kakhulu, igalelo liyi-cliping waveform, icandelo le-treble linzima kakhulu, hayi i-treble kuphela egqwethiweyo, kodwa i-tweeter inokutshisa.
Xa sisebenzisa i-microphone, ukuba i-microphone isondele kakhulu kwisithethi okanye ijongene nesithethi, kwaye umthamo we-amplifier yamandla uvulwe ngokuvakalayo, kulula ukuvelisa impendulo yesandi esiphezulu kwaye kubangele ukukhala, okuya kubangela i-tweeter ukutshisa ngaphandle.Ngenxa yokuba uninzi lweempawu ze-midrange kunye ne-treble zithunyelwa ukusuka kwiyunithi ye-treble emva kokudlula kwi-frequency divider, lo mqondiso unamandla amakhulu onke adlula kwiyunithi ye-treble enekhoyili ebhityileyo kakhulu, evelisa umsinga omkhulu kwangoko, obangela ubushushu obuphezulu kwangoko, kunye nokuvuthela ucingo lwekhoyili yelizwi , i-tweeter yaphuka emva kokwenza "woo" ukukhala.
Indlela echanekileyo kukusebenzisa i-microphone engasondeli okanye ejongene neyunithi yesithethi, kwaye umthamo we-amplifier yamandla kufuneka unyuswe ngokuthe ngcembe ukusuka kwincinci ukuya enkulu.Iisandisi-lizwiiya konakaliswa ukuba umthamo uphezulu kakhulu, kodwa imeko enokwenzeka kukuba amandla e-amplifier yamandla ayonelanga kwaye isandisi-lizwi sivulwa ngamandla, ukuze imveliso ye-amplifier yamandla ingabi yi-sine wave eqhelekileyo, kodwa Umqondiso kunye namanye amacandelo e-clutter, eya kutshisa isithethi.
Ixesha lokuposa: Nov-14-2022