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polaritate difuzor

 
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bobutzu207
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Joined: 29 Mar 2006
Posts: 91
PostPosted: Fri Dec 11, 2009 9:56 am    Post subject: polaritate difuzor Reply with quote
Am un dif de bas de 18" si cand bate toba el in loc sa iasa in afara ca mai toate difurile membrana lui se duce inauntru. Exact asa face si cu o baterie de 9 volti ca sa iasa in afara trebuie sa schimb polaritatea. Sa fie o problema cu bobina adica sa aiba polaritatea invers? diful e unistar rm-450. Are ceva daca il pun sa cante invers ca polaritate?
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Mircea Bartic
Director General 0766332366
Director General 0766332366


Joined: 27 Oct 2005
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PostPosted: Fri Dec 11, 2009 9:58 am    Post subject: Reply with quote
nu are nimic, totusi este foarte ciudat, presupun ca este o iluzie optica

semnalul audio este sinusoidal, deci difuzorul nu se misca doar in interior sau exterior de la pozitia de repaos ci face un ciclu complet
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mariusspuneceva
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Joined: 26 Jul 2009
Posts: 455
Location: Braila
PostPosted: Fri Dec 11, 2009 10:46 am    Post subject: Reply with quote
l-ai cumparat in boxa ? EUROVOX cumva ?
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Mpro
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Joined: 18 Jul 2008
Posts: 1280
Location: Odorheiu(Hr)
PostPosted: Fri Dec 11, 2009 11:08 am    Post subject: Reply with quote
Am avut si eu difuzorul UNISTAR,18" RM 450!

Nu e iluzie..si membrana lui s-a dus inauntru. Nu stiu ce fel de difuzoare ciudate sunt. Confused
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bobutzu207
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Joined: 29 Mar 2006
Posts: 91
PostPosted: Sat Dec 12, 2009 7:43 am    Post subject: Reply with quote
nu este iluzie optica. Nu zic ca se misca numai intr-o directie ci in ambele dar spun ca toate difurile care le-am avut pana acum la percutii membrana tinde sa iasa spre inafara, revine un ciclu normal complet. Ei acest difuzor face la fel un ciclu complet numai ca invers fata de celelalte difuzoare. Am mai observat asa ceva la niste boxe VECHI romanesti de pickup, acestea aveau un singur dif de 8" de toata gama de 10w cu magnetul prins in 3 suruburi daca le stie cineva.
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tudorps2000
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Joined: 09 Mar 2010
Posts: 61
Location: iasi
PostPosted: Fri Mar 26, 2010 11:07 pm    Post subject: r Reply with quote
stie cineva cam cat rms are acest dif?si dak este bun pt un bph:Dmc
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