Kwintsimi yezithethi ze-multimedia, ingcamango ye-amplifier yamandla ezimeleyo yavela kuqala ngo-2002. Emva kwexesha lokulinywa kweemarike, malunga ne-2005 kunye ne-2006, le ngcamango entsha yoyilo lwezithethi zemultimedia iye yamkelwa ngokubanzi ngabathengi.Abavelisi besithethi esikhulu baye bazisa izithethi ezitsha ze-2.1 kunye noyilo oluzimeleyo lwe-amplifier yamandla, ethe yabeka i-wave "ye-amplifiers yamandla ezimeleyo" yokuthenga i-panic.Enyanisweni, ngokubhekiselele kwikhwalithi yesandi sesithethi, ayiyi kuphuculwa kakhulu ngenxa yoyilo lwe-amplifier yamandla ezimeleyo.Izandisi zamandla ezizimeleyo zinokunciphisa kuphela ngempumelelo impembelelo yokuphazamiseka kwe-electromagnetic kumgangatho wesandi, kwaye azanelanga ukubangela uphuculo olubonakalayo kumgangatho wesandi.Nangona kunjalo, uyilo oluzimeleyo lweamplifier yamandla lusenezibonelelo ezininzi ezingenazo izithethi eziqhelekileyo ze-multimedia eziyi-2.1:

Okokuqala, i-amplifier yamandla ezimeleyo ayinamda owakhelwe ngaphakathi, ngoko inokufezekisa ukutshatyalaliswa kobushushu obungcono.Izithethi eziqhelekileyo ezinezixhobo zokukhulisa amandla ezakhelwe ngaphakathi zinokususa ubushushu kuphela nge-convection ye-inverter ityhubhu kuba zitywinwe kwibhokisi yeplanga ene-thermal conductivity engalunganga.Ngokubhekiselele kwi-amplifier yamandla ezimeleyo, nangona isiphaluka seamplifier samandla sitywinwe kwibhokisi, kuba ibhokisi ye-amplifier yamandla ayifani nesithethi, akukho mfuneko yokutywinwa, ngoko ke inani elikhulu lemingxuma yokutshatyalaliswa kobushushu inokuvulwa kwindawo. yecandelo lokufudumeza, ukuze ubushushu budlule kwi-convection yendalo.Ukusasaza ngokukhawuleza.Oku kubaluleke kakhulu kwii-amplifiers eziphezulu.

Okwesibini, ukusuka kwinkalo yeamplifier yamandla, i-amplifier yamandla ezimeleyo iluncedo kuyilo lwesekethe.Kwizithethi eziqhelekileyo, ngenxa yezinto ezininzi ezifana nomthamo kunye nokuzinza, idizayini yesekethe idibene kakhulu, kwaye kunzima ukufezekisa ukuhlelwa kweesekethe eziphuculweyo.I-amplifier yamandla ezimeleyo, ngenxa yokuba inebhokisi ye-amplifier yamandla azimeleyo, inendawo eyaneleyo, ngoko ke uyilo lwesiphaluka lunokuqhubela phambili kwiimfuno zoyilo lombane ngaphandle kokuphazanyiswa yinjongo.I-amplifier yamandla ezimeleyo inenzuzo ekusebenzeni okuzinzile kwesekethe.

Okwesithathu, kwizithethi ezinezandisi zamandla ezakhelwe ngaphakathi, umoya osebhokisini uhlala ungcangcazela, nto leyo ebangela ukuba ibhodi yePCB yeamplifier yamandla kunye nezinto ze-elektroniki zisebenze, kunye nokungcangcazela kwee-capacitors kunye namanye amacandelo aya kudlalwa abuyele kwisandi, okukhokelela ekubeni ingxolo.Ukongeza, isithethi siya kuba neziphumo ze-electromagnetic, nokuba sisithethi esichasene nemagneti ngokupheleleyo, kuya kubakho ukuvuza okungenakuthintelwa kombane, ngakumbi i-woofer enkulu.Amacandelo e-elektroniki afana neebhodi zeesekethe kunye ne-ICs zichaphazeleka ngokuvuza kwamagnetic flux, okuya kuphazamisa i-current in circuit, okubangelwa ukuphazamisa isandi sangoku.

Ukongeza, izithethi ezinoyilo lwe-amplifier yamandla azimeleyo zisebenzisa indlela yokulawula ikhabhinethi yeamplifier yamandla, ekhulula kakhulu ukubekwa kwe-subwoofer kwaye igcine indawo exabisekileyo yedesktop.

Ukuthetha ngeenzuzo zamandla amaninzi azimeleyo, eneneni, inokushwankathelwa kwisivakalisi esinye-ukuba awucingi ubungakanani, ixabiso, njl., kwaye uqwalasele kuphela umphumo wokusetyenziswa, ngoko i-amplifier yamandla ezimeleyo ingcono. kunoyilo lwe-amplifier yamandla eyakhelwe-ngaphakathi.