400 for the box build. The box holds 2 10" JL audio subs, regarding the airspace for the subs, the box is whatever the subs required, I couldn't tell you off hand but could ask him what spacing he used. The box is a combo of wood and Fiberglass for the curvature of the space as well as the inside being dynamatted.
Last edited by Tokugawa; 01-08-2015 at 09:09 AM.
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