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<blockquote data-quote="quackhead" data-source="post: 7813557" data-attributes="member: 573547">I personally have avoided that type of design. Looking at the bottom pic, it looks like the dark brown thingy is creating a choke point right at the entrance to the combined section of the ports. If you were to use a piece of pvc piping there in the interior corners to identically replicate the radius on each side of the brown thingy, then it would look ok to me. Actually by glassing in a length of piping from the speaker side of the ports sounds like a very good idea with your design. Or, maybe using 2 pieces of wood and creating a triangle in place of the curved brown thingy and &#039;45 ing the interior corners of the ports to perfectly match would work too.My point is, at a glance, it looks like you are going to be tuning the ports pre maturely where they combine into one port section. I like my ports to be perfect dimensions throughout the entire length of the port without any restrictions that will alter the resonant frequency, this includes dowel pins as well. The atmospheric pressures in both chambers fluctuating in unison, combined with the atmospheric pressure inside the port, should be enough to counter act any suspected flex in the interior port walls.Looks good though, Ranger man......just my .02... lol</blockquote>

[QUOTE="quackhead, post: 7813557, member: 573547"] I personally have avoided that type of design. Looking at the bottom pic, it looks like the dark brown thingy is creating a choke point right at the entrance to the combined section of the ports. If you were to use a piece of pvc piping there in the interior corners to identically replicate the radius on each side of the brown thingy, then it would look ok to me. Actually by glassing in a length of piping from the speaker side of the ports sounds like a very good idea with your design. Or, maybe using 2 pieces of wood and creating a triangle in place of the curved brown thingy and '45 ing the interior corners of the ports to perfectly match would work too. My point is, [B]at a glance,[/B] it looks like you are going to be tuning the ports pre maturely where they combine into one port section. I like my ports to be perfect dimensions throughout the entire length of the port without any restrictions that will alter the resonant frequency, this includes dowel pins as well. The atmospheric pressures in both chambers fluctuating in unison, combined with the atmospheric pressure inside the port, should be enough to counter act any suspected flex in the interior port walls. Looks good though, Ranger man......just my .02... lol [/QUOTE]

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