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ELFORUM - Forumul electronistilor

Problema tweeter


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Detin o pereche de boxe Magnat All Ribbon 4 din anii 84-86. Problema este ca un tweeter ( MHTL-28M care urca pana la 34 000 Hz , cel putin asa scrie pe ele ) la sunete mai sus de 12 000 Hz se aude mai incet decat celalalt parca si-a pierdut din "viata" . As face ceva sa-l salvez si vroiam sa va intreb ce sa verific sau ce sa fac mai departe ( am schimbat iesirile , amplificarea si tot la fel ).


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Sînt doar două variante: cea tristă, diful e pe ducă (am avut o pereche semiarse, mai aveau circa 1 Ohm şi se auzeau încet), ori varianta mai veselă, vre-un condensator buclucaş în filtru. Ptr verificare se schimbă între ele.

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