addind another 06 15 L7 to my system

[4uha8ers 10+ year member]

i going to run run 2 L7 15 would a 6 cuft. ported box be good and what tuning for these subs and would a box 5.63 cuft. make subs sound differnt then a 6 cuft.

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[Polecat 5,000+ posts]

is 5.6 before woofer and port displacement? If so, your still fine, just tune to 33-35hz for street bump...