Goto used to have Beryllium which is fairly radioactive and expensive.Then their units are rated to 5 W (not 120 W PMPO) which is fair when played in a room with boundaries not too distant. We're talking about efficiency and polar dispersion , better with no compression when hearing at high volumes . Never heard nor GOTO nor CD in my room,I prefer to watch the photographs!
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Don't want to mislead you into thinking you get something for nothing. Like I said, the RS52 is great for the price...but it is not in the same league as a good compression driver with substantially more diaphragm area.
I also said the RS52 might make a good candidate for a (quick opening) constant directivity conical waveguide...but you are suggesting a variable directivity device with relatively slow throat expansion. Personally, I haven't had much success with domes in "tight" horns...they may be a better match with compression drivers.
Along with your other system objectives, you need to decide the polar pattern you want (should complement the woofer and tweeter). Polar pattern will help guide flare selection. Flare selection can influence driver selection etc etc. You have probably heard it a hundred times, but it's all about balancing tradeoffs.
I also said the RS52 might make a good candidate for a (quick opening) constant directivity conical waveguide...but you are suggesting a variable directivity device with relatively slow throat expansion. Personally, I haven't had much success with domes in "tight" horns...they may be a better match with compression drivers.
Along with your other system objectives, you need to decide the polar pattern you want (should complement the woofer and tweeter). Polar pattern will help guide flare selection. Flare selection can influence driver selection etc etc. You have probably heard it a hundred times, but it's all about balancing tradeoffs.
It's said that Altec 288 can do about 200Hz with a very big horn. Is that low enough?
Hello picowallspeaker,
Beryllium is a very rare metal on Earth and very expensive.
It possess a chemical toxicity but it is not radioactive.
Best regards from Paris
Jean-Michel Le Cléac'h
Beryllium is a very rare metal on Earth and very expensive.
It possess a chemical toxicity but it is not radioactive.
Best regards from Paris
Jean-Michel Le Cléac'h
Thanks for sharing. It looks very good (except that HF mega peak of the driver), and it turns out to have a pretty good low end, far lower than I'd expect a 10" round horn can do.
We couldn't tell if it is actually Dayton, as it was sold on German Ebay marked as tractrix horn (which it clearly isn't!), but the seller also has some elliptical waveguide, that PE doesn't sell.
btw: It is not my project!
Bye!
btw: It is not my project!
Bye!
10 db sensitivity gain, not to bad... 🙂
Now to find a midrange dome which can be used without a tweeter... If it had not been for the 14khz breakup of the Dayton it could be an alternative.
I like the idea of a driver with 500 to 20 khz bandwidth and with the dynamics of a compression driver, yet the smoothness of a dome tweeter.
Now to find a midrange dome which can be used without a tweeter... If it had not been for the 14khz breakup of the Dayton it could be an alternative.
I like the idea of a driver with 500 to 20 khz bandwidth and with the dynamics of a compression driver, yet the smoothness of a dome tweeter.
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To let the dome face out.
The phase plug is not easy to be removed, and there's a 'tunnel' if removed. The 'rear' side of an ordinary compression driver is a dome, which is much easier to deal with such application.
The phase plug is not easy to be removed, and there's a 'tunnel' if removed. The 'rear' side of an ordinary compression driver is a dome, which is much easier to deal with such application.
I don't heard this. There are a few similar system somewere in Moscaw, including with vitavox s2.. short (4" throat) tractrix horn, 2xx Hz cutoff. no measurements, no tweeter info.
people said - sound is good 🙄 (no chamber\phase plug effects)
sensitivity surely less.
http://www.vegalab.ru/forum/showthread.php?t=15283&page=18 from #350 (on russian)
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