Blimey, who’d have thought……
Back in the old days, it was as simple as ‘buy a speaker’ , shove it in a box and voila…….
Nowadays though…………
http://audiojudgement.com/types-of-enclosures-which-is-the-best/
There’s quite a few, including the following types…………
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Sealed enclosure
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Infinite baffle
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Open Baffle
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Free-air
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Bass reflex
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Ported
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Vented
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Bandpass
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Transmission Line
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Folded Horn
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Isobaric
Each has different properties, suited for different things……some are as easy as ‘shove it in a box’, others need complex enclosure geometry and some math………
Now, considering I have 5 speaker drivers waiting to be hooked up, own two 3D printers (and a CNC), Know a bit about Fusion360 and have a penchant for overthinking and overcomplicating stuff (hey, where’s the fun when it’s simple!?)…..I figured, lets learn a little bit about speaker enclosure design……
Turns out, there’s quite a few youtube videos……….
One in particular from a channel that I’d already subscribed to a few months ago…….HexiBase – Can a 3D printed enclosure Get low
Look at the size of that box!……..It uses a Folded Waveguide type resonance chamber for the enclosure…..which appears very similar in design to a ‘Transmission line’ style of speaker.
….Challenge accepted….I’m going to build a small Transmission line speaker!
Bleugh.Biz Blog Thingy 
Nicely done, sir.
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I wonder… if one could create a hybrid Folded Horn + Transmission Line Design. So you work with what you’ve already done and then bring out a folded horn fitting on the front of it. Your current design presents the speaker on the left-hand side. The folded horn facade then presents a hole on the right-hand side with concealed horn path.
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That’s a good idea!
I’ve been trying to figure out the ‘end game’ aesthetics. having a slightly wider speaker with a large side exit horn could take care of that.
…but, I’ll need to read up on horn dimensions and design now!
Another thought springs to mind though, a wide but short cylinder speaker with a spiral leading to the horn . Picture a coin, the speaker is located in one edge of the coin and the waveguide spirals inwards to come out of the head side of the coin!
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Does it have to be a single spiral waveguide? What if there are multiple spirals offset by enough distance so that there’s enough material between them? (Imagine dropping six spaced-apart heavy spheres into a cylindrical slowly-spinning clear vat of something which would leave trails in the material as they drop.) So basically, the entire outer shell is a long winding path/maze as a separate chamber. The simple inside remaining cylindrical chamber then could also be shaped as well. The shell path would be for bass and the inside chamber for treble.
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