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LBX2G
06-10-2003, 11:52 PM
Hey I built a box. I had it in my truck and had 2 lightining audio bolt 12's. Then the amp was an old amp. Hit really hard. I was stolen out of my truck a year ago becase it hit so hard. I Just got it back 3 months ago. I forgot freq the ports were turned to. Is there a webtie with an calculator that i can calculate the port freq. Or is the there a fromula

fantomas
06-10-2003, 11:56 PM
theres a couple different formulas.....
go here for a port length calc.... http://www.the12volt.com/