Kuhlelo lomsindo, ukusha kweyunithi yesipikha kuba yindaba ebuhlungu kakhulu kubasebenzisi bomsindo, kungakhathaliseki ukuthi kusendaweni ye-KTV, noma ebha nasesigcawini. Ngokuvamile, umbono ovame kakhulu ukuthi uma ivolumu ye-amplifier yamandla iphakanyisiwe kakhulu, kulula ukusha isikhulumi. Eqinisweni, kunezizathu eziningi zokuthi isikhulumi sishabalale.
1. Ukucushwa okungenangqondo kweizipikhafuthiama-amplifier kagesi
Abangani abaningi abadlala umsindo bazocabanga ukuthi amandla okukhipha e-power amplifier makhulu kakhulu, okuyimbangela yomonakalo ku-tweeter. Eqinisweni, akunjalo. Ezikhathini zobungcweti, isikhulumi ngokuvamile singamelana nokushaqeka okukhulu kwesignali okuphindwe kabili kwamandla alinganiselwe, futhi singamelana izikhathi ezintathu ngokushesha. Ukushaqeka okuphezulu kwamandla alinganiselwe kabili ngaphandle kwezinkinga. Ngakho-ke, akuvamile kakhulu ukuthi i-tweeter ishiswe amandla aphezulu e-power amplifier, hhayi ngenxa yomthelela onamandla ongalindelekile noma ukukhala kwesikhathi eside kwemakrofoni.
Uchungechunge lwe-AX --Ifektri ye-Pro Audio Amplifier I-amplifier yamandla amakhulu enamashaneli amabili
Uma isignali ingaphambuki, amandla kagesi esignali egcwele ngokweqile yesikhathi esifushane awela ku-woofer ngamandla aphezulu, okungadluli amandla esikhathi esifushane esipikha. Ngokuvamile, ngeke kubangele ukuphambuka kokusatshalaliswa kwamandla kwesipikha futhi kulimaze iyunithi yesipikha. Ngakho-ke, ngaphansi kwezimo ezijwayelekile zokusetshenziswa, amandla okukhipha alinganisiwe esipikha samandla kufanele abe amandla alinganisiwe aphindwe kabili kunalawo esipikha, ukuze kuqinisekiswe ukuthi isipikha samandla asibangeli ukuphambuka lapho kusetshenziswa amandla esipikha.
2. Ukusetshenziswa okungalungile kokwahlukaniswa kwemvamisa
Ukusetshenziswa okungalungile kwephuzu lokuhlukaniswa kwemvamisa yetheminali yokufaka lapho kusetshenziswa ukuhlukaniswa kwemvamisa yangaphandle, noma ububanzi bemvamisa yokusebenza obungenangqondo besipikha nakho kuyimbangela yomonakalo ku-tweeter. Uma usebenzisa isihlukanisi semvamisa, iphuzu lokuhlukaniswa kwemvamisa kufanele likhethwe ngokuqinile ngokuya ngephuzu lokuhlukaniswa kokusebenza kwesipikha elinikezwe umenzi. Uma iphuzu lokuwela le-tweeter likhethwe ukuthi liphansi futhi umthwalo wamandla usinda kakhulu, kulula ukushisa i-tweeter.
3. Ukulungiswa okungalungile kwesilinganisi
Ukulungiswa kwesilinganisi nakho kubalulekile. Isilinganisi semvamisa sisethelwe ukukhokhela amaphutha ahlukahlukene ensimu yomsindo yangaphakathi kanye nama-frequency angalingani ezipikha, futhi kufanele silungiswe nge-spectrum analyzer yangempela noma ezinye izinsimbi. Izici zemvamisa yokudlulisa ngemuva kokulungisa amaphutha kufanele zibe zithe tyaba ngaphakathi kwebanga elithile. Ama-tuner amaningi angenalo ulwazi lomsindo enza ukulungiswa ngokuthanda kwawo, futhi ngisho nabantu abaningi baphakamisa izingxenye zemvamisa ephezulu kanye nemvamisa ephansi yesilinganisi phezulu kakhulu, bakhe isimo "se-V". Uma la ma-frequency enyuswa ngaphezu kwe-10dB uma kuqhathaniswa nemvamisa yebanga eliphakathi (inani lokulungiswa kwesilinganisi ngokuvamile lingu-12dB), hhayi nje kuphela ukuphazamiseka kwesigaba okubangelwa yi-equalizer okuzoshintsha kakhulu umsindo womculo, kodwa futhi kubangele kalula iyunithi ye-treble yomsindo. Ishisiwe, lolu hlobo lwesimo luyimbangela eyinhloko yezipikha ezishisiwe.
- Ukulungiswa kwevolumu
Abasebenzisi abaningi babeka i-attenuator ye-post-stage power amplifier ku--6dB, -10dB, okungukuthi, i-70%--80% ye-volume knob, noma ngisho nendawo evamile, bese bandisa okokufaka kwesigaba sangaphambili ukuze bathole ivolumu efanelekile. Kucatshangwa ukuthi isikhulumi siphephile uma kukhona umkhawulo ku-power amplifier. Eqinisweni, lokhu nakho akulungile. I-attenuation knob ye-power amplifier inciphisa isignali yokufaka. Uma okokufaka kwe-power amplifier kuncishisiwe yi-6dB, kusho ukuthi ukuze kugcinwe ivolumu efanayo, isigaba sangaphambili kumele sikhiphe i-6dB ngaphezulu, i-voltage kumele iphindwe kabili, kanti i-headroom ephezulu enamandla yokufaka, izonqunywa phakathi. Ngalesi sikhathi, uma kunesignali enkulu ngokuzumayo, okokukhipha kuzogcwala i-6dB kusenesikhathi, futhi kuzovela i-waveform eqoshiwe. Nakuba i-power amplifier ingagcwali kakhulu, okokufaka kuyi-waveform eqoshiwe, ingxenye ye-treble inzima kakhulu, hhayi i-treble kuphela ehlanekezelwe, kodwa ne-tweeter nayo ingasha.
Uma sisebenzisa imakrofoni, uma imakrofoni iseduze kakhulu nesipika noma ibheke isipika, futhi ivolumu ye-amplifier yamandla ivuliwe kakhulu, kulula ukukhiqiza impendulo yomsindo ophindaphindayo futhi kubangele ukukhala, okuzokwenza ukuthi i-tweeter ishise. Ngenxa yokuthi iningi lamasignali ebanga eliphakathi kanye ne-treble athunyelwa kusuka kuyunithi ye-treble ngemuva kokudlula kusihlukanisi semvamisa, lesi signali samandla aphezulu sidlula kuyunithi ye-treble nge-coil encane kakhulu, sikhiqiza ugesi omkhulu osheshayo, okubangela ukushisa okuphezulu okusheshayo, futhi sivunguza ucingo lwe-voice coil, i-tweeter yaphuka ngemuva kokwenza umsindo othi "woo".
Indlela efanele ukusebenzisa imakrofoni engasondeli noma engabheki iyunithi yesipikha, futhi umthamo we-amplifier yamandla kufanele ukhuliswe kancane kancane kusukela kokuncane kuya kokukhulu.isikhulumikuzolimala uma ivolumu iphezulu kakhulu, kodwa kungenzeka kakhulu ukuthi amandla e-power amplifier awanelanga futhi i-loudspeaker ivuliwe kanzima, ukuze ukuphuma kwe-power amplifier kungabi yi-sine wave evamile, kodwa kube isignali enezinye izingxenye ezigcwele, ezizoshisa i-speaker.
Isikhathi sokuthunyelwe: Novemba-14-2022