spl aq3 box

[FX_RYEN_04 10+ year member]

i am going to get two aq 15's, i heard for good spl in a trunk run a 4.5 cubic box with a 4x4 or 2x6 slot box tuned to 40 hertz, but what about for two 15's? sq dose not matter to me as much as spl.

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[Big Nev 10+ year member]

ive got a box 7 cubes running 4000 watts doing high54 low 55's ina truck. Got a 5.2 in a car running 2800 or so doing 152.7 all day port is like15" tall, 4.5 or 5" wide and 8-12 " deep. hope it helps