A brace right thru the middle of the port to reduce port noise and increase strength? //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif
If that box designer wants to reduce port noise, he should start by altering those port dimensions. I know what he is thinking, the old rule of dont go past 1:9 ratio of legnth vs width of a port. His original port would have been more than 1:9, so he added a wall in the middle to make it two ports with less than 1:9. Now Im no expert on air flow characteristics, but thats seems like the same thing, but just with a wall in the middle. I do not see how adding a wall down the center of the port to artificially change it from one 1:18 port (for example, guessing) to two 1:9 ports will make air flow characteristics any better.
As for increasing strength, if that were the case, the brace should extend a lot further inside the box. The weakest points in a box are the centers of the walls, not the corners or down near an end. So his 'brace' that does not even extend to the center of the walls it connects, that only extends so far as the port opening, is not meant as a brace at all, its meant for the above artificial port alteration. Saying its a brace is just a way of piling more bullshit on his otherwise bad decision.