I'd want to drop that 1KHz crossover a lot. This should be no problems with the HF1440 in a domestic environment. The mids are over 1WL apart at 1KHz.
Nice
I'm gonna receive my horn and throat adapters for hf1440 on thu/fri and can start testing them against Tad
.I've attached a render of the speaker so you can make out how the midwoofs sit there. They are supposed to be resonator loaded, but it eludes me whether they refer to the BR or the slit. Disregard how the tweeter looks as this is an older version of the speaker with a different driver.
As for unwanted resonance... I can't seem to detect any either by ear or mic. My previous speaker was a Neumann KH310 and this killed it in every regard in an AB test. Also it goes extremely loud.
It is true that the HF1440 can go lower, but it's mostly horn limited here. A larger horn would work in a speaker where everything has been blown up proportionally. As in - larger woofer slits, prolly 18WU woofers...
As for unwanted resonance... I can't seem to detect any either by ear or mic. My previous speaker was a Neumann KH310 and this killed it in every regard in an AB test. Also it goes extremely loud.
It is true that the HF1440 can go lower, but it's mostly horn limited here. A larger horn would work in a speaker where everything has been blown up proportionally. As in - larger woofer slits, prolly 18WU woofers...
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The factory curves show that it can. In my case it's the horn that limits the LF point. It's only 34cm in diagonal.
Didn't see the extra horizontal board vertically limiting the drivers.. that will push the resonances up even higher in freq..
Basically as long as the low-pass drops the pressure enough higher in freq. it becomes a non-issue.
Please find here some measurements of the Faital HF1440 in Yuichi Arai A290 horn: https://www.diyaudio.com/forums/multi-way/357825-shadow-colossus-build-thread-13.html#post6348851
It's too bad these are unobtanium lol
Not a single vendor offers these stateside, and even in EU they're sold out 🙁
Not a single vendor offers these stateside, and even in EU they're sold out 🙁
^Got mine 1-2 weeks after I placed the order to TLHP, the estimated lead time is not accurate (they will tell current situ how long it will take if asked).
Looks like these drivers will soon be available in the U.S.
FaitalPRO HF1440 1-1/4" Neodymium Compression Horn Driver 8 Ohm
FaitalPRO HF1440 1-1/4" Neodymium Compression Horn Driver 8 Ohm
Dang, these are ridiculously expensive. The JBL D2430K is $599 and you can get used D2415Ks for $599 a pair:
JBL D2430K Tweeter JBL 446213-001X for VTX Series - Speaker Exchange
JBL D2430K Tweeter JBL 446213-001X for VTX Series - Speaker Exchange
The question is whether the D2430K is worth $ 599, but $ 449 for the HF1440 is indeed expensive.
Almost the (introductory) price of a pair at the well known shop in France.
Almost the (introductory) price of a pair at the well known shop in France.
Funny that Parts express is calling the HF1440 a 1 1/4" when the exit is 1.4". I briefly though they had come with another standard for throat diameter.
If it has to be a ready-made horn that provides maximum loading, this is could be an option.
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At $450 each in the US they are at least half-again as expensive as they should be. 🙁
I also wonder why this is so. Faital Prices at P.E. are usually quite competitive compared to European dealers.
But I don't know how well the D2 fares at its lower end compared to the HF1440. Some say that the 800Hz where it is crossed in the M2 would be quite stressful for it already.
Regards
Charles