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    System setup question box rise

    So my buddy hooked up an spl lab, and clamped my amp..
    I have an INFINITY REFERENCE 1211A amp.. 1300 RMS @2 ohms only 2 ohm stable

    I have dual 2 Sa 12's, wired to 2 ohms.
    I got a 140db and after calculations, im only getting about 230rms per sub, these subs are rated at 600.. Will i blow them since I guess im underpowering them? Also how can I hit a 140 if im only seeing 450 combined RMS.

    Im thinking about getting a bb2400 witch is 2400@1 ohm..
    Can I use a one ohm amp, even if I wire the subs to half ohm?
    Also why is my box rise at 7 ohms, but subs wired to 2 ohms?







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    Re: System setup question box rise

    Bump.. Does anyone here know car audio?




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    Re: System setup question box rise

    Quote Originally Posted by darron016 View Post
    So my buddy hooked up an spl lab, and clamped my amp..
    I have an INFINITY REFERENCE 1211A amp.. 1300 RMS @2 ohms only 2 ohm stable

    I have dual 2 Sa 12's, wired to 2 ohms.
    I got a 140db and after calculations, im only getting about 230rms per sub, these subs are rated at 600.. Will i blow them since I guess im underpowering them? Also how can I hit a 140 if im only seeing 450 combined RMS.

    Im thinking about getting a bb2400 witch is 2400@1 ohm..
    Can I use a one ohm amp, even if I wire the subs to half ohm?
    Also why is my box rise at 7 ohms, but subs wired to 2 ohms?
    No
    Wattage does not determind how loud a setup will be
    Yes, but be since you know very little I wouldnt do this
    Box rise is a B!t ch, try out different things to get it down, like less speaker wire, or you may have to build a new box to get it down..




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    Re: System setup question box rise

    Im arguing with people in facebook, they said box rise is highest at the peak frequency.. Witch is where I got the 7ohm box rise, they say at my peak I see less RMS to my subs. But why would it be louder with less RMS? (200)rms but on the other frequencies where box rise is at like 4 or 5 I get more RMS.. but its not as loud.




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