between 2.3 and 2.7 tuned at 32hz after port and sub displacement is the best we ever got out of them. the larger box will hit much deeper than there spec enclosure and the smaller of the 2 still hits low but with a little better sq.Are you asking what JL recommends? If so, they recommend 1.875 cu ft. per driver tuned to 34.5 hz.
Also, .120 cu ft driver displacement.
Thanksbetween 2.3 and 2.7 tuned at 32hz after port and sub displacement is the best we ever got out of them. the larger box will hit much deeper than there spec enclosure and the smaller of the 2 still hits low but with a little better sq.
hope that helps.
General guideline to follow is 10-16sq in of port per ft3. Try to talk to sum people that have played around with these before and get their input.Thanks
Whats a good port area for ea driver?