Very interesting!
Suggestion: try to morph the throat into an ellipse which opens into an rectangular mouth.
Suggestion: try to morph the throat into an ellipse which opens into an rectangular mouth.
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I don't know, I haven't found it doing anything really useful. The above was 1,4". I have seen better without narrowing the throat.
I even tried to incorporate it in some of my better designs - it was always worse.
I even tried to incorporate it in some of my better designs - it was always worse.
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Maybe make a waveguide for the Bliesma T34B with control down to 1khz....would be a very low compromise treble solution for home use.
Yeah, I thought about that several times. Maybe even because the diaphragm is so rigid the simulation could represent the reality pretty well to a relatively high frequency.
Does anyone have the dimensions (a drawing) of the external moving parts of the tweeter? I could try something...
Does anyone have the dimensions (a drawing) of the external moving parts of the tweeter? I could try something...
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I expected some improvement wrt pattern control in the vertical plane. Your waveguide appears to be 60x60°, so it's hard to tell if this is the case.
Anyway, it's probably not worth further exploration.
Vertical? I'd expect horizontal, and maybe it is, up to a point, but it doesn't come without drawbacks. What I showed is about 90x80°.
My focus now will be the phase plug.
My focus now will be the phase plug.
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I think something bigger would be anticipated. I'm all for it, I'd only need a drawing of the tweeter without the grille. It would be nice if the grille was made optionally removable (held in place magnetically), like e.g. on Peerless DA32TX00-08, which could also work pretty well for the money - I have a pair of those (not so the Bliesmas) and may try something with them as well. These are waveguide-ready, so to speak.
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Hello,
M. Stanislav Malikov, the owner of Bliesma is very open minded and I suggest to get in touch with him directly. see the following link:
http://www.bliesma.de/contact.html
I would really like to have some waveguides for the T34B or the smaller T25B !
I currently use a T25B on a renovated "Boule Elipson BS40" from the sixties and I like what I hear...
Jean Claude
90x80° is almost symmetrical, but at least there seems to be no pattern flip.
You polars are somewhat better than those of 18Sound.
The grille of the Peereless is also for the radiation patern and not only protection if I remember !
If 1200 hz is possible w/o horn, how low do you expect it to go horned ?
Btw , have you purchased drivers on Sound Imports ? No problems ?
Never wrong with GR ;-)
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