Beyma 12P80ND / V2
Be aware there are 3 different models of it that has been produced.
The earlier versions had different smooth cones and surrounds etc and higher efficiency.. Plenty of info on that transducer available on here, search for 12p80 on the forums here.
And the one in the pictures from @atilsley is a smooth coned version, so not current production model.
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Thanks will research that driver, a likely partner with the P Audio PH-94 horn flare?
It should.
However, a more modern counterpart to the PH-94 is this LaVoce HD1403.
The polars are among the best I've come across with such short horns.
There are no hard-edged transitions inside the horn, which is usually a good thing > leading to better sound quality.
However, a more modern counterpart to the PH-94 is this LaVoce HD1403.
The polars are among the best I've come across with such short horns.
There are no hard-edged transitions inside the horn, which is usually a good thing > leading to better sound quality.
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Doesn't look very different from similar 1.4 horns, like the RCF HF96, does it?
Except, it doesn't have a slot in the throat section.
Except, it doesn't have a slot in the throat section.
Another cadidate is the B&C ME90, of which the polars aren't bad either.
While it's not a typical slot, the tube-like throat section may cause some unwanted side effects.
While it's not a typical slot, the tube-like throat section may cause some unwanted side effects.
I would say that the RCF one does definitley have some sort of diffraction slot. It also looks very well manufactured. If it weren't a PITA to route I would have tried it many times.
What I wanted to say is that the "diffraction slot" on the LaVoce seems to be horizontal, which looks a little strange. And it can't be rotated easily because heigth and width are not exactly the same.
Regards
Charles
What I wanted to say is that the "diffraction slot" on the LaVoce seems to be horizontal, which looks a little strange. And it can't be rotated easily because heigth and width are not exactly the same.
Regards
Charles
There is no slot in the throat of the LaVoce, only (small) bumps in the vertical plane, followed by a Keele-esque 'added flare' at the mouth.
The RCF does indeed have a slot, it's short though, which helps reducing the nasties (astigmatism/distortion).
Hate those woofer cutouts too. Blumenhofer made them invisible.
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The HD1403 is also used in these 4-way semi-active speakers with a built-in DSP processor. Drivers are custom Lavoce (whatever that means).
Price: 80,000€ per pair, which is still €40,000 cheaper than a pair of Daniel Hertz M1s.
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LaVoce is a joint venture between Elletromedia (Hertz, Audison car audio) and a Chinese company. Essentially the speaker units are designed by the Italian engineers and then built and fine tuned in China. I have measured and used quite a few Hertz and Audison drivers on car installs and they`ve always been mediocre even when compared to home drivers costing /10. They (Lavoce) do offer some small fullrangers which fit a niche, however, as they`re higher in sensitivity with higher Fs but could fit into many stock car 2" locations. Have not bought any but would to try them.
Listened to them at the Warsaw show. They sounded very good, but the upper frequencies were a little harsh.