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Montare tweetere pe RCD standard, Sfaturi...

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l@u
post 3 Jan 2007, 15:05
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As dori sa montez 2 tweetere pe fata.Mentionez ca am instalatia audio originala HU-Phillips+4 difuzoare Blaupunkt.Momentan am 2 tweetere cu:frecventa raspuns 5-20 Khz , sensivitate 97db/w/m , impedanta 4 ohmi , putere max 1800w(???) dar nu stiu care este + si care este - mentionez ca au un fir alb si unul negru ,deasemeni nu stiu care este polaritatea la difuzoarele masinii si as mai vrea sa stiu daca mai trebuie sa adaug vreun condensator sau rezistenta la tweetere si cum in serie sau paralel. Multumesc anticipat!!!


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IRONICK
post 3 Jan 2007, 15:23
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Trebuie un condensator nepolarizat in serie cu tweeterul. (sau doua polarizate cu plusurile legate intre ele)
In principiu firul alb trebuie sa fie plus. O sa iti dai seama la montare, ca se vor auzi inaltele mai slab daca il pui invers.
Condensatorul in jur de 5micro (sau doua de 10, daca folosesti doua in serie)
Atenuator rezistiv se adauga daca are spl-ul mai mare decat celalat difuzor. Se duce naiba liniaritatea ...
Sper ca sunt cu calota sferica tweeterele, ca cele piezo se aud infect.

This post has been edited by IRONICK: 3 Jan 2007, 15:28


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l@u
post 3 Jan 2007, 15:29
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Mai parca la berlina pe care am vandut-o am pus in serie pe + la tweeter un condensator de 4,7 micro dar nu am spus ca nu eram sigur.Da KKT-urile astea de tweetere sunt bune de ceva? Nu influenteaza HU-ul adica sa nu fac vre-o boacana??? unsure.gif


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IRONICK
post 3 Jan 2007, 15:34
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4,7micro este valoare standard pentru condensatoare (cum este si 2,2; 3,3; 6,8;), iar eu am aproximat.
Nu se strica nimic.

EL. Valoarea condensatorului este aleasa in functie de frecventa de taiere.

This post has been edited by IRONICK: 3 Jan 2007, 15:51


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IRONICK
post 3 Jan 2007, 22:51
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Pentru cei care vor sa-si calculeze si construiasca singuri filtrele: Calculator

This post has been edited by IRONICK: 4 Jan 2007, 12:11


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l@u
post 4 Jan 2007, 11:46
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Multumesc!!!


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l@u
post 5 Jan 2007, 15:25
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Pana la urma am rezolvat-o cu montarea unui condensator nepolarizat de 2,2 micro in serie pe plusul tweeterului.Fara condensator imi rupeau urechile inaltele iar cu 4,7 nu prea imi placea de aceea am ales 2,2.


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IRONICK
post 5 Jan 2007, 15:29
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Fara condensator se arde foarte repede tweeterul. Cu cat scade valoarea condensatorului cu atat creste frecventa de taiere.


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eXtenSion
post 12 Jan 2007, 00:39
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Eu acuma mi-am pus 4 tweetere (fata spate) si ma intrebam oare cate poti sa pui in paralel cu un difuzor?


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IRONICK
post 12 Jan 2007, 09:52
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Poti sa pui cate vrei ... doar ca sa rezulte aceeasi impedanta. Adica pui mai multe in serie si paralel ...


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l@u
post 19 Apr 2007, 11:02
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Se poate inchide . Multumesc!


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