WINisd box design help

[ryanrokita]

i have 2 perfect 12's and im gonna put them u 1 box. so the calculator is telling me that the box will be 8.5 ft^3 and tuned to 21 hz. does this sound right? i want great lows and sound. i thought that u want boxes to be 32 hz for great lows and sound and i also see the reccomended size for each sub will be 1.75 cubic ft. im confused let me know if 21hz and 8.5 cubes is ok. thx

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[bonesninja 5,000+ posts]

no....try 3.5-4 cubes at 31-35 htz