Yes, you are correct. The 11 cuft figure factors in port, driver, and bracing volume. You also have to subtract the thickness of the panels when calculating the internal volume so the internal dimensions become 21.75 x 24 x 46.5.If I do the maths on the dimensions for the Full Marty (24x25.5x48) it comes out to 17cuft, is the quoted 11cuft taking into account the braces and the port taking up interior volume?
If I can afford a little more room dimension wise for a slightly larger Full Marty, could it be tuned even lower? Like ~15Hz?
You do not necessarily have to make the enclosure larger to tune it lower, but you'd want to model it before deciding the best course of action.
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