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    Alpine PDX 1.600 amp...need help with gain setting

    I try to install my Alpine PDX1.600 amp today for my Image Dynamics IDQ12 but the sub isn't hitting hard. I have the gain set midway and the voltage switch is set at 1.0-8.0 volts since i am using a pioneer premier 680mp headunit with 4v preouts. However when i switch the voltage switch to .1-1.0 volt, the sub hits hard like it should. However i don't want to leave it at this setting since it might destroy my system. any reasons why my sub do not hit hard when the voltage switch is at 1.0-8.0 volts?



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER




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    Re: Alpine PDX 1.600 amp...need help with gain setting

    anyone?



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    hello?



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    can someone help me?



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    hmmm, is the sub up on the deck? does the deck have variable voltage (my jvc does)?
    Make sure the settings are right on the deck, and keep in mind it's 4volts near max volume with settings up.



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    Re: Alpine PDX 1.600 amp...need help with gain setting

    yeah make sure your head unit is at about 90% of its max volume when youre setting it. if the volume isnt up, the output voltage isnt NEAR 4v



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    Re: Alpine PDX 1.600 amp...need help with gain setting

    i set the volume at 55/61 on my pioneer and cannot achieve the voltage(34.64v) on my DMM unless i set my PDX amp to .1-1v setting.



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    apparently there were issues with the pdx model and its input voltage switch. I just switched it to .1-1 volts and achieved my targeted voltage of 32 volts



    Acura Integra

    HEADUNIT - Pioneer AVIC N2
    FRONTSTAGE - Crystal SSCS6 component system
    REAR - None
    FRONTSTAGE AMP - Diamond Audio d3 400.4
    SUBWOOFER - Image Dynamics IDQv3 12 inch
    SUBWOOFER AMP - Alpine PDX 1.600
    SUBWOOFER BOX - 1.9^3 @ 28 hz ported box designed by JBLCAMRY and built by BJ FISHER

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    I'm a little late to the party but I have the same amp with an Alpine 9887 H/U (4V Pre-out Max) and I have the PDX set to .1-1 volts as well for it to hit hard...have had it set this way for over a year now with no issues.




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    Re: Alpine PDX 1.600 amp...need help with gain setting

    Quote Originally Posted by 6crnbnh View Post
    I'm a little late to the party but I have the same amp with an Alpine 9887 H/U (4V Pre-out Max) and I have the PDX set to .1-1 volts as well for it to hit hard...have had it set this way for over a year now with no issues.
    I have the same setup, plus I'm running at 1.3 ohms and it's still kicking just fine :-)



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    Re: Alpine PDX 1.600 amp...need help with gain setting

    Yeah, I'm running 2 JL Audio 10" subs rated at 8 ohms but running in parallel so the amp is seeing 4 ohms per driver...I have to have the gain cranked all the way but it hits pretty good for 10" subs each in a .5 cu. ft. sealed enclosure...not much space under that rear seat!




    Eddie Izzard: Squirrels always eat nuts with two hands, always two hands, "arararar", and occasionally, they stop and go...oh, uh, ah, as if they're going, "Did I leave the gas on? No! No, I'm a fucking squirrel!"

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    Re: Alpine PDX 1.600 amp...need help with gain setting

    well best of luck i just bought the pdx4.100 havent installed it yet hope its not going to give me any problems either




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    Re: Alpine PDX 1.600 amp...need help with gain setting

    My ARC FD4.150 has the gains ONLY from I think .2-2V. They noted in the manual that it doesn't matter, it's just set that way because of something, I forget what.



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