Well, a strong beaming we typically try to avoid, but sure, if you're after a hyper-beaming horn, there's hardly a better solution.
Actually, my measurements show that it is not so problematic as your simulations suggest.
You have seen it for yourself some time ago. But I do not question your model per se. I think the difference is in the driver I use (coaxial BMS). Less beamy than your model predict this way, so more useful than you think. It would be interesting if you could model the behaviour of a coaxial driver in a beamy horn.
I can't recall seeing such data. The exact exit wavefront shape has an effect but only at wavelengths comparable to the throat diameter, and often these are not very big differences. The horn itself pretty much sets the basic outcome here.
Sorry for the beginner question—I feel like I’m missing something.
I followed the instructions and some posts in this thread and received the initial model as well.
However, I still don’t fully understand how to fabricate it so that everything stands together. Right now, each tunnel is standalone. Do I need to add any bracing or support?
I'm planning to 3D print it.
Thank you!
I followed the instructions and some posts in this thread and received the initial model as well.
However, I still don’t fully understand how to fabricate it so that everything stands together. Right now, each tunnel is standalone. Do I need to add any bracing or support?
I'm planning to 3D print it.
Thank you!
Greetings to Israel! When I made a prototype, it was composed of three parts, printed separately and glued afterwards. You need to add something that will hold it all together - e.g. in the same way as phase plugs of compression drivers are made. I used only three thin supports (visible in the below pictures). On todays multi-material 3D printers, the whole thing could be probably easily printed as a single part with the help of soluble supports.
But in general, these parts can be tricky to get right. Not so much to print but especially to actually work properly.
But in general, these parts can be tricky to get right. Not so much to print but especially to actually work properly.
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I have missed a lot here. Hopefully diyaudio will notify me of the new posts. Can't figure out why I get some notifications and not others.
+1 on this one. There where some discussion on this topic ca 20000 pages, 100 bottles of wine and four new puppies ago. But nothing definite?
Having an assymetric horn where you can place them/the speaker parallel with the back wall and still firing inwards towards the listening position can be the one factor that makes such a system find its way into a living room.
I've been working on such possibility for some time (a very generalized way of geometry definition) but I can't promise when, or even if, this will be available. The working name is "superslot" 🙂
Enclosures with triangular ground plan kind of work like this. (Not that I've ever seen any.)
BTW, as the DFM2535 drivers from the group buy are on their way (hopefully), I'm going to design a more "user-friendly" STL kit of a horn for them, still based on A460G2, maybe A400G2 as well. Maybe even a baffle-mounted one. Those drivers are so special that they really deserve something dedicated.
I don't think it would have to be rectangular. The Tritonia does not have the silky smoothness of the A460G2.
It needs to be. The smoothness of the Gen2 horns is due to their free-standing nature, i.e. due to the lack of any quick curvature changes anywhere. With a baffle mounted horn, it's a lot easier to get decent results with a mouth other than circular. Otherwise it would have to be huge.
And I already have multiple versions of the QTS econowave horn that already about as smooth as you can get from the DFM2335 in a rectangular format.
Then there's nothing to improve.
- Of course I can make a baffle-mounted version of a current (round) Gen2 horn, but you may be disappointed. Flat baffle is simply not a particularly good termination. Rectangular mouth can eliminate this to a large degree, if done right.
- Of course I can make a baffle-mounted version of a current (round) Gen2 horn, but you may be disappointed. Flat baffle is simply not a particularly good termination. Rectangular mouth can eliminate this to a large degree, if done right.
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