If i remember corectly, the solobarics need a sealed box. Every sub usually requires a certain type of enclosure to sound good. Some subs will only sound good in sealed, some only in ported, ect...But when i used to compete in DB Drag competitions, i saw numerous people use the solobarics in ported boxes, so those subs may work with both, but for sound quality, use a sealed box, and check the spec sheat for the sub if you have one, or check out their web site for the specs to see how much airspace you need for that particular sub. If the sub is speced to have a sealed and you use a ported, chances are it will be louder, but only at certain frequencies. Its all how the sub is built to determine what kind of box to use. I do have a box building program on my computer if you need box building specs, just let me know. any Q's , just speak up.

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