2000 Audi A4
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Kicker zx1000
JL 10w1v2-4 (x2)
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Polk audio components
Old (back when they were good) sony 400w amp
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I have two jl10w1v2-4 subs in a ported pox. The box is ~1 cu Ft. I'm not sure what it's tuned to but, I do not like the sound it puts...