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    question about gain

    My gains were set with a dmm. Is it normal that I had to actually turn my gains higher when I replaced my headunit with a higher voltage unit? Old one was 2v and new one is 5v , it just seems like sincen I have more voltage going to rca I'd need to turn it down







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    Re: question about gain

    Quote Originally Posted by beginner View Post
    My gains were set with a dmm. Is it normal that I had to actually turn my gains higher when I replaced my headunit with a higher voltage unit? Old one was 2v and new one is 5v , it just seems like sincen I have more voltage going to rca I'd need to turn it down

    The RCA input voltage also depends on the resistance of the RCA's used. Generally headunits are tested at 100hz to get their pre-out voltage, no oscope testing is done when they do the test either. So depending upon the brand name it could be better or worse than the original unit.

    You can check your preout voltage with the multimeter and determine if you're adjustment of the gain matches the ac voltage coming in.




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    Re: question about gain

    Quote Originally Posted by beginner View Post
    My gains were set with a dmm. Is it normal that I had to actually turn my gains higher when I replaced my headunit with a higher voltage unit? Old one was 2v and new one is 5v , it just seems like sincen I have more voltage going to rca I'd need to turn it down
    Yes, that seems odd. All other things being equal you should have more signal from the new HU. But you'd have to had used exactly the same signal source, same volume setting, same equalization (preferably flat) etc to compare apples to apples.



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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