Ulwahlulo lwesandi olusebenzayo lukwabizwa ngokuba yi-active frequency division.Kukuba isignali yesandi yenginginya yahlulwe kumbindi wokusetyenzwa kweyunithi yenginginya phambi kokuba yandiswe yisekethe yeamplifier yamandla.Umgaqo-siseko kukuba isignali yomsindo ithunyelwa kwiyunithi yokucubungula ephakathi (CPU) yomkhosi, kwaye iyunithi yokucubungula ephakathi yesignali ye-audio yomkhosi ihlulwe ibe yisignali ye-frequency ephantsi kunye ne-high-frequency signal ngokoluhlu lokuphendula rhoqo, kwaye ke imiqondiso emibini eyahlulwe igalelo kwisekethe yokukhulisa kwaye ikhuliswe ngokwahlukileyo.Indlela yokwahlula amaza yedijithali.

Ulwahlulo lwesandi sePassive, olukwabizwa ngokuba yi-passive frequency division, kukuba isiginali yomsindo ikhuliswa yisekethe yeamplifier yamandla ize yahlulwe yi-passive crossover, kwaye emva koko igalelo kwi-tweeter ehambelanayo okanye i-woofer.Umgaqo-siseko kukuba isandi esiphezulu sihluzwa yi-inductance circuit, sishiya isandi esiphantsi, emva koko sifake isandi esisezantsi kwi-woofer.Isandi esisezantsi sihluzwa yi-electrolytic capacitor kwaye isandi esiphezulu se-frequency sishiywe, kwaye sifakwe kwi-tweeter.Indlela yolwahlulo lwamaza ihlengahlengiswa yi-resistor variable.

Ulwahlulo lwesandi olusebenzayo kufuneka lube yeyona yunithi iphambili enomsebenzi wokwahlulahlula amaza okanye ukongeza i-digital active crossover emva kokuphuma komsindo weyunithi engundoqo.Ngokubanzi, iimodeli eziphezulu ze-Alpine iyunithi ephambili inomsebenzi osebenzayo wokwahlulahlula amaza.Ibonakaliswa ngamanqaku achanekileyo e-crossover kunye nokwahlulahlula rhoqo.Isandi sicocekile emva kokwahlulwa kwamaza.

Izandisi-lizwi ezisebenzayo zisetyenziswa ngabantu abaninzi.Izandisi-lizwi ezincinci ze-Walkman zisandisi-lizwi esisebenzayo, oko kukuthi, iseti yezandisi-lizwi zongezwa kwibhokisi yesandisi-lizwi ngokubanzi.Xa sifuna ukuyisebenzisa, sifuna kuphela inqanaba elingaphambili kwaye hayi inqanaba elingasemva.I-internal esebenzayo isebenzisa indlela yokwahlula isandi se-elektroniki, kwaye isusa inkathazo yokudibanisa kunye nesigaba esifanelekileyo sangemva;Isandisi-lizwi esingenakwenziwa sisandisi-lizwi esiqhelekileyo esinothungelwano olunye kuphela lwe-crossover ngaphakathi.

Inqanaba langaphambili elisebenzayo linqanaba langaphambili le-IC, i-transistor, kunye ne-vacuum tube esiyibona ngokubanzi.Unempembelelo yokukhulisa xa isignali ingena kwaye iphuma.Olu hlobo lwenqanaba langaphambili lunokusebenzisa ukusebenza okuphezulu okuguquguqukayo, kwaye iimpawu zemodeli nganye zikwahluke kwi-timbre.Inqanaba elingaphambili le-passive lisisithinteli solawulo lwevolyum, imveliso yaso iya kuba ncinci kunegalelo, kodwa imeko yonikezelo lwethowuni incinci, idla ngokuba ngumahluko omncinci, hayi njenge amplifier esebenzayo yeqonga langaphambili lahluke kakhulu .