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    Mark_ab's Avatar
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    Gain Controls - Help

    My HU (SonyCDX620) has 4vrms, how should I have the gain set on my amp so my subs are recieving the best signal w/ no clipping etc?







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    gain control

    mark ab-- turn your amp gain all the way down
    then turn your headunit (sony) about 3/4 of maximum
    then gradually turn the amp gain up until
    the sub starts to distort then gradually turn gain
    a little back till sub stops distorting
    depending on what amp you are using (manufacture)
    it may start to distort with little amp gain
    or more amp gain




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    leave the gains at zero




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    Mark_ab's Avatar
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    Okay, I will try that. Now what if my subs don't distort? (I have two perfects)




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    gain help

    mark ab-- set your hu 3/4 of maximum then as you
    gradually turn up the amp gain your
    sub volume will start to rise keep adjusting gain
    till your sub starts to sound bad ( broken up distorted)
    then turn gain a little back. setting your headunit
    and your amp this way you will have your amp and
    headunit set for full power befor (clipping, distortion)
    occur . give it a try




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    Mark_ab's Avatar
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    What should I have the HU Bass and Sub control at? Thanks for the help.




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    have the bass set at whatever you think it sounds best thru your remaining speakers without distortion.

    the sub control, i've heard two different things.
    1: turn it all the way up and adjust your gains. that way you can turn it down if you want and may not have to use too much gain.
    2: is just the opposite. turn it all but off and adjust your gain. again it's so you can adjust the bass level without having to re-adjust the gain. the bad thing here is you will need to crank the gain up a little more which could result in more distortion.the advantage is that you always have a little more at your fingertips,whereas the first method you still have more but you got to go to the amp to adjust.


    hope that helps.



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    Excellent, thanks for the help.




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