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Message: <blockquote data-quote="PV Audio" data-source="post: 3010420" data-attributes="member: 554493"><p>No, not really. Either way, to make a fair comparison, let's compare this design to an equivalent design with the same port area. Let's also consider that it's a labyrinth port as well. There will be some compression in this port if the port area is not large enough; that's a given. However, the air can still escape readily from the other end because it's a linear flow from one location to the next. The issue with this box is that  when the speaker moves, the air from the rear of the cone will be pushed down the port as normal, but it cannot continue it's flow because it meets a wall. Instead, the air will be forced through the hole in the top of the box by air compression. Because this is the only way to have the air escape, it is by default far more inefficient than an equivalent "orthodox" vent design.</p></blockquote><p></p>

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