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AV1000

AV1000

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Am vazut ca mai toata lumea(In general profesionishtii) vorbesc despre AV800 a lui Anthony E. Holton. dar nimeni nu vorbeste de AV1000, De ce?? Nu sunt un cunoscator foarte bun de electronica dar vreau sa invat, si vreau sa imi fac un astefel de amplificator (Stereo).. Astept si eu niste pareri si nishte comentarii.Multumesc :)

 

http://www.aussieamplifiers.com/index3.htm

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Guest Vasile

Este varianta modificata a celui de 800W, cred ca este ok si va merge perfect.

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Guest AdiTm

la av1000 mai sunt adaugati cred veo 4 finali in rest este la fel :partyman:btw...am cablajul la schma ampl AV800(orijinala a lui holton) daca o vrea careva o pot trimite prin e mail :weedman:

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Guest Miron Bogdan

Da as dori eu schema AV800 originala a lui Holton(cablajul) si componentele, asezare pe cablaj etc. daca ai asa ceva.Multumesc([email protected])

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cablajul complet nu il am am doar schema..ne-ai ajuta daca ai posta acel cablaj

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Guest Vasile

cred ca userul EPSICON ae acel cablajgata facut de vanzare :goodman:

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Guest Vasile

la betie se simpte ? nu prea cred....

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Guest kongo

atunci de ce nu postezi o schema mai buna de aceasi putere?

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Acest amplificator va suna jalnic la frecvente inalte.(Parerea mea). Si sa explic de ce: Are o structura diferentiala cu iesire pe colector (deci rezistenta mare de iesire), si ataca o multime de tranzistori mosfet in paralel. Se stie ca hiba mosfet-urilor este capacitatea de intrare de peste un nanofarad ce apare in paralel cu intrarea, iar acolo sunt o gramada de condensatori (grile) in paralel. Deci rezulta un amplificator mediocru datorita vitezei de variatie foarte mici (slew rate). Va avea un raspuns total necorespunzator atat la semnal treapta cat si la semnal ac, folosite in mod curent pentru testarea amplificatoarelor audio in laboratoarele de performanta. Eu nu as asculta muzica pe un asemenea aranjament.

sunt socat, ma prefac ca nu am vazut acest topic

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Daca ipa 1000 are probleme cu slew rate, atunci ipa400 ar trebui sa aiba slew rate de 2 ori mai bun deoarece are numai 4 mos-fetii. Deci suna bine si la betie, dar si cand "te trezesti". :weedman: . Oare cum suna atunci schemele de 30KW, care au pana pe la 100 de mos-feti? probabil etajul dinaintea lui are rezistenta mica de iesire care forteaza incarcarea rapida a capacitatii grilelor?

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