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Anyone looking to use Hygeia (Airborne) AMT tweeters in their designs?
Anyone looking to use Hygeia (Airborne) AMT tweeters in their designs?
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Old 24th October 2017, 08:39 PM   #11
OscarS is offline OscarS  United States
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Quote:
Originally Posted by wolf_teeth View Post
I used the 5002 in my Nephila project. It was great, dynamic, but only good down to about 3.4kHz.

Wolf
Well, it all depends how they are implemented, but I'm sure you know that already. I found an .frd file for them, and yes they have to be "tamed" to get anything resembling a flat response due to their very "peaky" nature, so in effect down-tuning the sensitivity via the crossover can get them to seemingly behave differently, so it seems.

Click the image to open in full size.


One of the things I'm wondering is how they will do in multiples. I don't expect too too much considering the wide spacing that is necessary between the elements, but who knows. I'm crossing my fingers that I can get them to give a little more down-low without too much response shaping filtering.
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Old 24th October 2017, 09:11 PM   #12
wolf_teeth is offline wolf_teeth  United States
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I did have to notch the peak in the response, but there is enough sensitivity to do so.

The boosting of the lower treble for this driver would best be done by a waveguide if you are inclined to go that route. Hawthorne Audio used a Beyma TPL-150 this way and it seemed to work for them.

I don't know if using multiples will do much to extend the low end, as the inherent FR will still reside. Due to the vertical dispersion, I doubt you'll get much comb filtering to reduce the top end in that manner either. They also don't couple like non-planar types to increase level in the lower treble.

I'd try an attach a file or 2 for you, but the interface seems to be locking up the website when I try it.

Later,
Wolf
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Old 24th October 2017, 09:30 PM   #13
wolf_teeth is offline wolf_teeth  United States
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Try this again...

This ought to help you out,
Wolf
Attached Images
File Type: jpg nephila (2).jpg (44.2 KB, 232 views)
File Type: jpg Nephila5C Xover.jpg (143.8 KB, 233 views)
File Type: jpg Nephila5C_tweeterElectrical.jpg (127.0 KB, 223 views)
File Type: jpg RT5002-CSD_Vance.jpg (24.8 KB, 192 views)
File Type: jpg RT5002H.jpg (48.2 KB, 58 views)
File Type: jpg RT5002-HD.jpg (60.5 KB, 54 views)
File Type: jpg RT5002V.jpg (48.0 KB, 47 views)
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Old 24th October 2017, 11:29 PM   #14
OscarS is offline OscarS  United States
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Thanks, I think I had ran into those pictures previously doing a google image search. If only a suitable off-the-shelf horn for the RT-5002's existed. We have a 3D printer at work, but I'd have to learn the programming language to set it all up. I guess this is a good a time as any, lol.
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Old 28th October 2017, 06:00 PM   #15
OscarS is offline OscarS  United States
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Well this is a bust. Seller takes forever to respond to emails!
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Old 3rd November 2017, 06:12 PM   #16
OscarS is offline OscarS  United States
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Finally! Order placed. I wish the process was a bit easier, but oh well. Crossing my fingers that my bank wire transfer finds it's way over there safely, LOL. Seems they don't have paypal or other forms of payment, since I asked but was not extended any other payment options. Ordered 4 x RT-50021's, 4 x RT-4001's, & 4 x RT-20051's. Grand total $428 USD.
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Old 30th January 2018, 01:35 AM   #17
OscarS is offline OscarS  United States
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Well it only took like 4 months from my initial query all the way to delivery, but Hygeia Electrical Co. came through!

Click the image to open in full size.

Click the image to open in full size.

AMT MADNESS !!!

Click the image to open in full size.
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Old 30th January 2018, 02:29 PM   #18
joetekubi is offline joetekubi  United States
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So is there a pair available for me?
Feel free to PM me if you'd prefer
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Old 30th January 2018, 06:06 PM   #19
OscarS is offline OscarS  United States
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Sure, at a mark-up. Should have gone in when you had the chance.
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Old 30th January 2018, 06:37 PM   #20
joetekubi is offline joetekubi  United States
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Markups are expected!
You did all the work
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