Ha o bapala mmino, ho thata ho akaretsa dihlopha tsohle tsa maqhubu ka sebui se le seng feela ka lebaka la bokgoni le mefokolo ya sebopeho sa sebui. Haeba leqhubu lohle la maqhubu le romelwa ka ho toba ho tweeter, mid-frequency, le woofer, "letshwao le feteletseng" le ka ntle ho karabelo ya maqhubu a yuniti le tla ama hampe ho kgutlisa leqhubu le tloaelehileng la maqhubu, mme le ka ba la senya tweeter le mid-frequency. Ka hona, baqapi ba tlameha ho arola leqhubu la maqhubu a modumo ka dikarolo tse mmalwa mme ba sebedise dibui tse fapaneng ho bapala dihlopha tse fapaneng tsa maqhubu. Ena ke tshimoloho le mosebetsi wa crossover.

ThecrossoverHape ke "boko" ba sebui, bo bapalang karolo ea bohlokoa boleng ba boleng ba molumo. "Boko" ba crossover ho libui tsa amplifier bo bohlokoa boleng ba molumo. Tlhahiso ea molumo ho tsoa ho amplifier ea matla. E tlameha ho sebetsoa ke likarolo tsa sefe tse crossover ho lumella matšoao a maqhubu a itseng a yuniti ka 'ngoe ho feta. Ka hona, ke ka ho rala crossover ea sebui ka saense le ka mokhoa o utloahalang feela moo litšobotsi tse fapaneng tsa liyuniti tsa sebui li ka fetoloang ka katleho 'me motsoako o ntlafatsoe ho etsa hore libui. Lokolla bokhoni bo boholo, ho etsa hore karabelo ea maqhubu a sehlopha se seng le se seng sa maqhubu e be boreleli le mohato oa setšoantšo sa molumo o nepahetse.

Ho latela molao-motheo oa ts'ebetso, crossover ke netweke ea sefe e entsoeng ka li-capacitor le li-inductor. Mokero oa treble o fetisa matšoao a maqhubu a phahameng feela 'me o thibela matšoao a maqhubu a tlase; mokero oa bass o fapane le mokero oa treble; mokero oa bohareng ke sefe sa band-pass se ka fetisang maqhubu feela lipakeng tsa lintlha tse peli tsa crossover, e 'ngoe e le tlase le e 'ngoe e le holimo.

Likarolo tsa crossover e sa sebetseng li entsoe ka L/C/R, ke hore, L inductor, C capacitor, le R resistor. Har'a tsona, L inductance. Tšobotsi ke ho thibela maqhubu a phahameng, ha feela maqhubu a tlase a feta, kahoo e boetse e bitsoa filthara ea low-pass; litšobotsi tsa C capacitor li fapane feela le inductance; R resistor ha e na tšobotsi ea ho khaola maqhubu, empa e reretsoe lintlha tse itseng tsa maqhubu 'me Lebanta la maqhubu le sebelisetsoa ho lokisa, ho lekanya sekhahla, le keketseho le ho fokotseha ha kutloisiso.

Bohlokoa baphetoho e sa sebetseng ke motsoako oa lipotoloho tse 'maloa tsa sefe tse nang le li-high-pass le tse nang le li-low-pass. Li-crossover tse sa sebetseng li bonahala li le bonolo, li na le meralo le lits'ebetso tse fapaneng tsa tlhahiso. E tla etsa hore crossover e hlahise litlamorao tse fapaneng libui.