I haven't had such thoughts 🙂
I think it's already good enough, actually. The baffle is pretty thick and can be printed really stiff, if desired. It's just a toy, this is not rocket science. Anyway, I'd be perfectly happy even with the (mostly hollow) PLA prototype.
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Still some minor modifications...
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What do you mean by toy, is it not intended to be used as a final speaker?
I know that a thin and resonant baffle made from plastic is commonly accepted with PA-type cabinets, but surprised to see it in a HiFi speaker.
I know that a thin and resonant baffle made from plastic is commonly accepted with PA-type cabinets, but surprised to see it in a HiFi speaker.
The overall thickness is 44 mm, which is really what makes it stiff. It's like holding a piece of wood, only much lighter. This is nothing like an injection molding, if that's what you mean by a "thin and resonant baffle made from plastic". Did you ever try to actually print anything?
Every loudspeaker is a toy, isn't it.
Every loudspeaker is a toy, isn't it.
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keep in mind that (in particular with this WG size+ crossover frequency combination) it's essential to consider the whole baffle (speaker) to be part of the waveguide.
a 5" driver will just start being directional at around 2 kHz, of course depending on the baffle shape.
I guess you can find lots of good waveguide examples for dome tweeters at www.somasonus.net
I can show my very rudimentary "hand carved" version:
the faceted "roundovers" are mostly for visual pleasure, but they optimize the directivity. roundovers would probably be even better.
EDIT: and never mind if you were asking for a CD waveguide!
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You can always try to scale down the Tritonia XS even further (and make it a bit more open), but frankly I don't see the point. The smaller you make it, the more attention you will need to pay to the enclosure (edge roundings, etc.). The current XS has 120° nominal beamwidth, which seems just fine to me for that kind of design. It's not so easy to make it wider than that.
I’ve been fighting my printer lately. Sometimes it feels like more of a hassle than a convenience…
Do you think your horn flare would be beneficial for a midrange horn? I was going to try and build one with a b&c 8pe21 that would be crossed at 150. I was also thinking of trying to create a phase plug that resembles your spherical wavefront guide. Your opinion is appreciated.
Do you think your horn flare would be beneficial for a midrange horn? I was going to try and build one with a b&c 8pe21 that would be crossed at 150. I was also thinking of trying to create a phase plug that resembles your spherical wavefront guide. Your opinion is appreciated.
The basic understanding of horns always applies: a horn/waveguide going that low will be either inefficient or very big. Hence, "beneficial" is likely to require a large device. In which case, yes, it would be beneficial.
"crossover will be around 2.1-2.5kHz or so."
If anyone has a bit more advice about this that would be great. 🙂
What I've found so far is that the coverage angle should be max 105-110 degrees to be able to match the mid-woofer well.
90 degrees would give a bit more headroom to cross a little lower.
I let hornresp generate a hypex horn for me and it looks like a train horn. What kind of directivity should I expect from something like that?
How would it pair with a a520g?
Under Hornresp "Tools-Directivity", there are"Response", "Pattern", "Index"," Beam Width", and "Polar Map" options:
They will visually tell you what to expect in whatever directivity format you choose.
Art
A little suggestion: if you are using your printer a lot or use a lot of filament: check if the nozzle has worn out. They wear out, namely.
With TAD4002 (1,5 inch exit) I wonder if a ATH400 horn will work down to 6-700 hz in a compact living room setup. My midrange is TAD TM1201 (12 inch)?
And is it a existing adapter drawing who match?
It seems like the 1,5-2 inch adapter has an exit angle of 5,27 degrees? But I don’t know the exit angle in the driver.
And is it a existing adapter drawing who match?
It seems like the 1,5-2 inch adapter has an exit angle of 5,27 degrees? But I don’t know the exit angle in the driver.
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It will simply be around 5°. I would have to make a new adapter, which is not a problem. I think it should reach 600 - 700 Hz.
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Perfect. How deep will the horn+adapter be? Ca 32-33 cm is what I have space to (plus TAD 4002). All these enclosures will be hidden inside a low and 320 cm wide shelf with fabric in front. This horn is eos15.
OK, you can try: https://at-horns.eu/ext/T520-39-STD-1-TD4002.zip
(It's of course compatible with all the Gen2 horns.)
(It's of course compatible with all the Gen2 horns.)