Yintoni naisithethi esipheleleyo?

Ukuqonda ngokupheleleyo ukuba yintoni aisithethi esipheleleyokukuba, kubalulekile ukufunda ngesandi somntu.Ubuninzi besandi bulinganiswa nge-Hertz (Hz), okanye inani lamaxesha apho umqondiso wesandi unyuka kwaye emva koko uwe ngesekondi.Izithethi ezisemgangathweni zakhiwe kuzo zombini iifrikhwensi eziphezulu nezisezantsi kwinqanaba elivakalayo kwindlebe yomntu.Indlebe yomntu iyakwazi ukuva zonke ii-frequencies ukusuka kwi-20 Hz ukuya kwi-20 000 Hz (20 kHz).
Ukuze uqonde le ngcamango, sinokuthi izithethi ezithile zivelisa i-heart-thumping bass kwi-20 Hz kunye nesignali ehlabayo ephezulu-frequency kwi-20 000 Hz (20 Hz).Isithethi esiluluhlu olupheleleyo siyakwazi ukuvelisa uninzi lwala maza, ngaphakathi kwemida yothintelo lomzimba.Oko kuthetha ukuba uyilo lwesithethi lunokuchaphazela umgangatho we- isithethi esipheleleyo.
 
Uluhlu lokuphindaphinda
 
Ibinzana elithi “Uluhlu Olupheleleyo” libhekisela kwisithethi esigubungela lonke uluhlu lwelizwi lomntu.Uninzi lwezithethi eziluluhlu olupheleleyo zinezandi ezisezantsi ezijikeleze i-60-70 Hz.Iiyunithi ezinkulu ezine-15” abaqhubi ziya kufikelela kwii-frequencies eziphantsi, ngelixa ezo ze-10” zabaqhubi be-LF okanye ngaphantsi ziya kuqengqeleka kufutshane ne-100 Hz.Uluhlu lwe-high-frequency yezixhobo ezinjalo zihlala zifikelela kwi-18 kHz.Ke ngoko, izithethi zefomathi ezincinci ezinabaqhubi be-HF abanobunzima obuphantsi kakhulu baya kuba nolwandiso loluhlu ngaphezulu kweenkqubo zamandla aphezulu.Bane-diaphragms ezinzima ukulungiselela iimfuno zabo zamandla.Uluhlu oluphantsi lwe-frequency yezi nkqubo aluyi kufunwa ukuba zenze umsebenzi ngokwazo ekupheleni kwezantsi.Zinokugqithelela ii-subwoofers okanye zigqitywe ngaphaya kwe-LF cutoff yazo kwaye zikhululeke kuthungelwano lwamaza aphantsi.
 
Ulwakhiwo
 
Ngokuqhelekileyo, iyunithi yokuqhuba i-full-range iqulethwe yinto enye yomqhubi, okanye i-coil yezwi, esetyenziselwa ukuhambisa nokulawula i-diaphragm.Rhoqo ulwakhiwo lwekhowuni lubandakanya ulungelelwaniso lokuphucula ukusebenza kwefrikhwensi ephezulu.Umzekelo, iphondo elinobunzima obuncinci okanye ikhowuni ye-Whizzer inokunyuswa apho icoil yelizwi kunye ne-diaphragm idibana khona, ngaloo ndlela inyusa imveliso kumaza aphezulu.Imilo kunye nemathiriyeli esetyenziswa kwikhowuni kunye neWhizzer ziphuculwe kakhulu.
Ukususela kwiizithethi ezipheleleyoidinga ukuba nempendulo ephezulu kunye nesezantsi-frequency, igubungela i-audio spectrum xa ithelekiswa nezinye izithethi.Kwi-frequency ephezulu, inokubandakanya ikhoyili yelizwi elikhanyayo kunye noyilo lwekhabhathi yobuchule kwiifrikhwensi eziphantsi.Isenokubonisa abaqhubi abahlukeneyo ukuze uphucule amava akho okuphulaphula.

 
Umgangatho wesandi
 
Izithethi zoluhlu olupheleleyo zibonelela ngamava esandi esikhulu kwaye umgangatho ungcono kunezona zithethi zineendlela ezininzi.Ukupheliswa kwe-crossover kunika esi sithethi amandla amaninzi okubonelela ngamava amnandi okuphulaphula.Ngaphaya koko, inika umgangatho kunye neenkcukacha kwiitoni zomgangatho ophakathi.Nangona kunjalo, izithethi ezipheleleyo zentengiso zinokubiza kwaye zinqabile.Kwezinye iimeko, ii-audiophiles zinokufuneka zidibanise ezazo iiyunithi.

H-285 Uluhlu olupheleleyo lweSithethi
I-advanteji:
I-1.Umzimba webhokisi wamkela iipleyiti ezinqamlekileyo kunye nesakhiwo sokudibanisa ipleyiti ekhethekileyo ukuphelisa i-self-excited resonance yomzimba webhokisi.
I-2.Long-stroke bass drive uhlobo lwe-radiation ngqo, isandi singokwemvelo kwaye siyinyani
3.Umgama omde woqikelelo kunye nenkcazo ephezulu
I-4.I-Low-frequency dive igcwele kwaye inamandla, kwaye iguquguqukayo
I-5.I-Mid-frequency yomelele kwaye iphezulu-ukungena, kwaye i-high-frequency ithambile kwaye iphuma kwi-double ye-15-intshi ye-high-frequency style rough.
I-6.Amandla anamandla aqhumayo, i-frequency low frequency surround kunye nemvakalelo yobukho
Iyunithi ye-7.Qhuba i-mid-frequency kunye nokungena okuphezulu