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  1. DIY Subwoofers - General Discussion
    I am building two sono subs and I am not sure what port size and length I should go with . My speakers are XJ15'S from DIY cable, they are 15 inch and the parameters areT/S from a production sample broken-in for 3-4 hours at 50% excursion. Measurements are with VC in parallel. Re: 3.95 ohm...