Junior Member
alright so im going to put 3 3" flared ports in to a a dual 15 box with 4.88 cubes, its for my polk audio mm1540s and i was wondering where i should put the ports or if it mattered. Flared Port Tube 3" ID x 11" L with 5" Flared Ends 269-165
these are the ports
Originally Posted by infamous_e46
Go cheap you get cheap
Not enough port
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Junior Member
the box is going to be tuned to 30hz and winISD said that what i needed
Da fuq did I just read?
What kind of vehicle is it going in? That's not going to be enough port... It's better to do fewer, larger diameter ports too. A single 8" flare would do much better.
Follow the basic rule of thumb regardless of what WinISD says. 12-16 square inches of port per cubic foot of box volume.
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Junior Member
/its going in the trunk of my 02 accord. can i just pick up a huge piece of pvc? and use that? or do need to do more
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