round port for 15

[SMS 10+ year member]

what do you all think about a 6.75" round port-no flares- for a 15" in a 3.6cube box. box will probably house a Xcon, BL, or HDC3 getting bout 1800w before rise and all. not all that concerned about minor port noise as it will be in my trunk, but i am looking for max output as this box will have interchangable ports- one being 44Hz for #s and that would be the most important outcome of this box.

Im thinking that if the port extends beyond the front of the box there will be less resistance- that make sense?

thanks for any help

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[Bettr n' Revrse 5,000+ posts]

what do you all think about a 6.75" round port-no flares- for a 15" in a 3.6cube box. box will probably house a Xcon, BL, or HDC3 getting bout 1800w before rise and all. not all that concerned about minor port noise as it will be in my trunk, but i am looking for max output as this box will have interchangable ports- one being 44Hz for #s and that would be the most important outcome of this box.Im thinking that if the port extends beyond the front of the box there will be less resistance- that make sense?

thanks for any help

Need to get us the excact sub you want and exactly how much space you have...

 

[SMS 10+ year member]

ok, well the internal space before sub, port, 45s, brace is 4.2cubes and lets say i go with the BL. really the box with decide the sub as this is the max i can work with. im not building it in the trunk- it must come out.

thanks