Mgbe ị na-egwu egwu, ọ na-esiri ike iji naanị otu onye na-ekwu okwu kpuchie ụgbụ niile ugboro ugboro n'ihi ikike na njedebe nhazi nke onye na-ekwu okwu. Ọ bụrụ na a na-eziga bandwit dum ozugbo na tweeter, mid-frequency, na woofer, "mgbama dị ukwuu. "nke ahụ dị n'èzí nzaghachi ugboro ugboro nke unit ahụ ga-emetụta mgbama mgbake na bandwit nkịtị, ma nwee ike imebi tweeter na etiti ugboro.Ya mere, ndị na-emepụta ga-ekewa ụda ugboro ugboro ka ọ bụrụ akụkụ dị iche iche ma jiri igwe okwu dị iche iche na-egwu egwu ugboro dị iche iche.Nke a bụ mmalite na ọrụ nke crossover.

Nkecrossoverbụkwa "ụbụrụ" nke ọkà okwu, nke na-arụ ọrụ dị mkpa n'ịdị mma ụda.The crossover "ụbụrụ" na-ekwu okwu amplifier dị oké mkpa maka ụda olu.Nsonaazụ ọdịyo sitere na igwe na-amụba ike.A ga-ahazirịrị ya site na ihe nzacha dị na crossover iji mee ka akara nke frequencies nke otu ọ bụla gafere.Ya mere, naanị site na nkà mmụta sayensị na ezi uche na-emepụta crossover ọkà okwu nwere ike gbanwee àgwà dị iche iche nke akụkụ ndị na-ekwu okwu nke ọma na nchikota kachasị mma iji mee ka ndị na-ekwu okwu.Hapụ ikike kachasị, na-eme ka nzaghachi ugboro ole bandwit ọ bụla dị nro yana usoro onyonyo ụda ziri ezi.

Site na ụkpụrụ ọrụ, crossover bụ netwọk nzacha nke mejupụtara capacitors na inductors.Ọwa treble na-agafe akara ngosi dị elu ma na-egbochi akara ngosi dị ala;ọwa bass bụ ihe dị iche na ọwa treble;ọwa etiti dị n'etiti bụ nzacha band-pass nke nwere ike ịfefe ugboro ugboro n'etiti isi ihe abụọ crossover, otu dị ala na otu dị elu.

Ihe mejupụtara crossover passive bụ L/C/R, ya bụ, L inductor, C capacitor, na R resistor.N'ime ha, L inductance.Ihe e ji mara ya bụ igbochi frequencies dị elu, ọ bụrụhaala na frequencies dị ala na-agafe, ya mere a na-akpọkwa ya nzacha dị ala;njirimara nke C capacitor dị nnọọ iche nke inductance;R resistor enweghị njirimara nke igbutu ugboro, mana ọ na-achọ ya n'otu ebe a kapịrị ọnụ na a na-eji bandwit maka mgbazi, nha nhata, na mmụba na mbelata.

Isi nke angafe crossover bụ mgbagwoju anya nke ọtụtụ sekit nzacha dị elu na nke dị ala.Crossovers na-agafe agafe yiri ka ọ dị mfe, nke nwere ụdị dị iche iche na usoro mmepụta.Ọ ga-eme ka crossover na-emepụta mmetụta dị iche iche na ndị na-ekwu okwu.