[miniSQ]

got any more info? Pics? model number? If not then you can try a 4 cuft box tuned to 35hz to be safe.

 

[miniSQ]

This is your only solution... and maybe you can find someone near with one. Been there, done that with numerous drivers and any arbitrary enclosure is a wild stab in the beginning & a second guess in the end because without proper specs you won't even know what type of enclosure is suitable, much less the size range. You'd be surprised how far off many common drivers are found to be.

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The only problem, and while i agree that it is the only real solution, do you expect someone to spend $150 to spec out a $50 subwoofer?