so I have a box that people say it's tuned to 60hz or higher not sure here's the port dimensions.....
12' high, 6' wide, outer port length 25', inner port length 18' and I was wonderin if I cut the inner port lenght a little bit how much would that change the tunning???

 

is it for your solos?

 

yeah..... it's in a 4.3 cubed I think I'll leave in a build a new box..... unless I get an answer before 7pm and it's 5pm (I have a show in Penticton tomorrow and need to know)