Three way dual chamber reflex

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Hello all, just thought I'd share some plans I have for my next project, and see what peoples thoughts were. I thought I'd go for something different and design a dual chamber reflex system, as I havent made one before and would like to try something new.

What I was thinking of was a slimline tower type, with the main bottom cabinet housing a side firing 10" woofer. Above that would sit the second box, serving as an enclosure for the tweeter and mid, and the back half partitioned off to serve as the second chamber. The two separate enclosures would be separated from each other by 3-4 cm or so and joined by stand-offs, and the two port ducts would be visible between the enclosures, and located along the centreline. The rearmost duct would link the main and secondary enclosures. The frontmost duct would pass back into the main enclosure but exit out the front via a 90 degree bend, and would be completely sealed off from the main enclosure.

Then the external vent for the main enclosure would exit on the front below the other vent. I have made a quick diagram to better explain my plan. The diagram is purely for demonstrative purpose and is in no part to scale.

I am aiming for a full range speaker that has a slim profille and looks nice, and I thought the sparate enclosures joined together on top another but with a gap between would look different and quite cool.
I chose a dual chamber reflex, because as stated I havent made on before, and should allow me to use a woofer with a lower Xmax from reduced excursion, which might broaden the range of suitable woofers. I will start looking at woofers and seeing what ones may be suitable for such design.

Any thoughts, tips, or constructive feedback would be great. Project is only in planning stage currently, so will see how it develops.


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I think you're a bit confused heh.
Here is a diagram of a conventional dual chamber reflex. In my design, the fundamental elements are still there, just in a different arrangement. And the partiton inthe top enclosure is to isolate the midrange speaker and tweeter from unwanted modulation and provide a better enclosure.


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Yes I did understand ,I was just wondering how the duct in the first chamber would behave ...if it added too much losses .That's because I did it that way ,and the bass
extension from the 5" woofer was enough (small 1st chamber , more than double volume the second ,with a flared vent in the two extremities ).
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