Sealed downfire designs allow for great sound quality from your subwoofers with the limited space in an underseat location! Build your own custom subwoofer box by using this blueprint design as a guide. Note that we recommend the use of shallow mount subwoofers for this applicaiton. If you do not have enough space for the magnet of the subwoofers you may need to notch and fiberglass the top of the enclosure to allow for additional clearance.
 
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For making the rounded corners we recommend the Mobile Solutions