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    diminishedpower's Avatar
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    Question on old school amp

    i have an old 2ch amp that i cant figure out whats pos and neg on it, its not marked. The best i could figure out was buy bridgeing and guessing untill it sounded right and figure out from there. Is there a better/ positive way to figure out what is what? Right now i've came up with it's a +- -+ set up.



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    Re: Question on old school amp

    have you tried googling the model number?

    sometimes you can find it....



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    Re: Question on old school amp

    well the truth is u will get a slight audible difference if u hook them up backwards. I mean it is not really a major problem.



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    Re: Question on old school amp

    get a voltmeter, and ground it while testing the channels, only do one port at a time, the neg shouldnt really put out ne power unless im very confused.



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    Re: Question on old school amp

    note the fact that the meter will be jumping due to the fact its not a regulated supply, every time a bass hit comes on it will jump.



    01' grand prix gt special edition: work in progress

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    (Two 10" type r's on the way)

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    Re: Question on old school amp

    o, i forgot to menyion it was powering my subs but now i was going to switch it to power my front components, because i believe its 75x2 at 4 ohms, but thats why i wanted to know



    05 Scion tC
    Subs = 15 inch power hx2 in 3.5 cu/ft at 32 hz
    Sub amp = Cadance ZRS-9

    FOR SALE:
    Ford BNIB 240 amp alt, only 200 shipped

    Refs: T9X, spoonraker

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