Home Forums DIY Speakers and Subwoofers DUAL WOOFER X12 X-OVER Reply To: RE: DUAL WOOFER X12 X-OVER

  • 123toid

    March 10, 2021 at 8:44 am
    Posted by: @kempsfromlondon

    Hi all,


    I have in my possession:

    4x Fane colossus 12MB

    2x BMS 4544

    2x P-Audio PH-3220 horn flares


    I plan on slapin these in an X12 speaker ( removed link ), but I’m not sure how to design the crossover due to the two woofers impact on the process.


    How do I measure the Z offset? Should i use both woofers during measurements as if there were only one? which woofer should axis displacement be calculated off? 


    I currently don’t have access to Xsim, I have a DSP mic on the way and have heard that DATS is a good investment to make. Could anyone point me in the right direction in regard to getting the X-OVER started for this build?


    Thanks, K


    If both woofers will be used as one woofer, then you measure the z-offset with both woofer playing.  What I mean by using it as one, is will they be playing the same response.  If so, then measure them together.  If you are doing more of a 2.5 way, then you would measure them separately.  

    This video is the easiest way to measure your z-offset:

    This shows you how to import that measurement into xsim