which on and why?

[mile098 10+ year member]

ill give it a go then, and see where im at..thnx guys

edit: port area suggestions maybe? JBL says 102 mm in diameter but that strikes me as too little...

 

[IamDeMan 5,000+ posts]

ya would probably breathe alot better and have a nicer low end

X2

Still inflated and not my cup of tea, but it will give you more of what you want I think. "pounding" and "rumble" isn't given by SPL alone. It has to have some extension.

 

[IamDeMan 5,000+ posts]

ill give it a go then, and see where im at..thnx guys
edit: port area suggestions maybe? JBL says 102 mm in diameter but that strikes me as too little...

85 liters or more actually tuned to 33-35. 75 is still only 2.6 cu ft.

As far as port try 2 102 MM diameter ports if doing round. If Slotting then 200MM squared.