supra1987
Senior VIP Member
Can anybody tell me in inches how much longer the port would have to be to achieve higher tuning?currently I have a 2.5 cubic ft box tuned to 32hz and I am planning on building an identical box but want to tune it to around 36hz.keeping everything the same i'm guessing just adding a few more inches to the current port length should do it,but not so sure on how many.thanks