mobilehomeguy Posted November 5, 2018 Report Share Posted November 5, 2018 I built a 4th order box for a H CCA 12 for a friend.its more of a show off piece,sounds decent.but now he wants to put it in a lil contest and its not competitive.the sealed side is 2.4cubic ft and the ported side is 4.6. 2:1 is what I wanted,I think my port is wrong.port is 31.25 x 3 x 6.5.box is 9h,32w,18.5d sealed.17h,33.5w,20d ported.i will try to post a pic.if anyone could help me to resize it or if someone could tell me exactly what this box is tuned to,I would be much appreciative Link to comment Share on other sites More sharing options...
DiBo Posted November 8, 2018 Report Share Posted November 8, 2018 Your sealed side is way off. You need more like 1.25-1.5 Max then about 2.5-3.25 ported Link to comment Share on other sites More sharing options...
mobilehomeguy Posted November 8, 2018 Author Report Share Posted November 8, 2018 Thanks for the info Link to comment Share on other sites More sharing options...
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