Need some box help!!

WildSebring
10+ year member

Uncle Bobby B baby
I've got a box built for 2 12's. Custom box by who, I dont know. It's 1.7 cubes per side, it is separate chambered.

My question is....the ports are about 8 inches long right now, and when I burped it last weekend, my note was 62-64. How much should I cut off to raise it my note close to a 70.

I've got no idea what it's tuned to....when I did the sweep, my peak was 63hz.

Does that mean it's already tuned high in the 50's or...?

Can I cut a little of the port off and be ok.....my goal is to make them do a 150+...as I got them to do a 147.3 last weekend at 2 ohm....

This weekend will be .5ohm, resining on the inside of the box, little shorter port and hopefully a 150+... //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

Help anyone!!! ??

 
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WildSebring

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Uncle Bobby B baby
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