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Old 18-10-05, 00:56   #1
XtenSion

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Default Intrebarea amplif

Aveam candva Eurotec + amplificator sansound - adelaida nush ce - scoate 40 W .. imposibil de aflat de care :\\ pe care era un woofer de 200 W.


Acuma am luat un Sony CDX-R3350 40w rms - are iesire woofer(care nu am gasit-o dar mai caut dc merita) si ma gandeam daca oare nu e posibil ca wooferul sa se auda mai bine fara amplificatorul ala de kko..

E posibil ce zic sau e o prostie prea mare?
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Old 18-10-05, 01:36   #2
J.D

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Orice subwoofer are nevoie de amplificare. Un casetofon auto nici macar nu-l misca.
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Old 18-10-05, 01:50   #3
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deci iesirea de subwoofer este de tip rca ,adic semnal pt un amplificator ,nu este gandita ca sa se conecteze direct la ea un difuzor asa ca pastreaza amplificatorul! acea iesire iti permite sa ti filtrezi semnalul si sa reglezi volumul sub ului de la volan
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Old 18-10-05, 17:06   #4
XtenSion

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oh i see :P merci pt sfaturi
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Old 18-10-05, 18:19   #5
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O.M.G.....sa nu spui ca ai facut asta???
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Old 18-10-05, 18:37   #6
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Oricum nu cred ca se auzea ceva...
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Old 19-10-05, 02:03   #7
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Acum am eu o intrebare. Unele statii au 2000 W rms la 1 ohm stabil. Eu nu am vazut woofere care sa aiba sub 2 ohmi. Or fi, nu stiu... Deci statia va scoate cat ca duce wooferul, daca wooferul are 800 la 4 ohmi, atunci statia va scoate cat scrie ca duce la 4 ohmi... Grea rau electronica asta audio intreabarea: pt ce este acea valoare de 200 w rms la 1 ohm ?
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Old 19-10-05, 08:47   #8
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Sunt woofere care au mai multe bobine,sau pui mai multe difuzoare in paralel pina ajungi la RE ( rezistenta echivalenta ) respectiva.Se pot face o gramada de combinatii.
Ideea e sa folosesti maximum de putere pe care o poate da amplificatorul.
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Old 19-10-05, 08:52   #9
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JL 13W7, 2 bobine de 1,5 Ohm. In paralel rezulta 0,75 Ohm. Sunt amplifuri stabile si la 0,5 Ohm. Ar mai fi Ground Zero Plutonium GZPW 15XQ cu 4 bobine de 1 Ohm. Dar in cazul acestor difuzoare se merge de cele mai multe ori cu amplifuri separate sincronizate (link) pe fiecare bobina in parte.

Exemple de difuzoare mai sunt multe. Cum spune si saxo, important este sa te folosesti de combinatia potrivita astfel incat sa scoti maxim de randament din instalatie.
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Old 20-10-05, 01:02   #10
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SAU :

Kicker cu doua bobine de 2ohmi puse in paralel => 1ohm :P
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