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    Daddy_'s Avatar
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    2 w7

    I needed some help on a box design as well as how many cubic feet will sound on 2 12" W7. JL Audio recommends 1.75 cubic feet so 3.5 for two. After displacement of 0.28 cubic feet total the box will be 3.22 cubic feet. I was thinking of going a little bit bigger and doing a 4.3cubic feet and after displacement it will be 4.02 cubic feet. Also what would you recommend the box be tuned to? I was thinking 34-35 hertz but I am not sure. Please let me know on how big or small I need the box as well as what it should be tuned to.







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    Re: 2 w7

    i would say the more cubic feet he better. I had one w7 once tuned to 35 hz and i like lows so it wasn't all that great.



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    Re: 2 w7

    i can toss a design together for you. what kind of music do you listen to? what amp will you be running? and what is the max space you want to give up?

    Matt




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    Re: 2 w7

    Rap music. Amp will be a Rockford Fosgate T1500BDCP. Its a 2012 Lexus IS 350 RWD. Sorry I don't know how to measure the trunk properly. But how much cubic feet would you give 2 W7s and what will be the tuning from your experience?




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    Re: 2 w7

    id say a 5 cube box tuned to ~33hz would be good. smaller than that and you start to loose output at tuning. go bigger than 5 cubes and you gain a larger peak around tuning. i just did a quick WinISD plot with T/S specs from JLs website. im sure someone else can give a better example. the thing about the W7 is it can play the lows with some serious authority. tuning lower may infact work better for what you want.

    Matt




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