Parts Express Neodymium Tweeter

wrenchone · 7th May 2005, 06:34 AM

I just picked up a few of Parts Express #279-234, a 1" soft dome tweeter with neodymium magnet and ferrofluid damping. From the markings on the tweeter, they appear to be surplus from Atlantic Technology. I was intrigued by the small size, and was thinking of using some of these in a miniature MTM with some 4.5" surplus Vifa drivers, and also in a line array with the cheapo Pioneer 4" drivers. Has anyone had a chance to messs with these tweeters yet?

Nappylady · 8th May 2005, 03:02 AM

Parts Express doesn't have an item #279-234.

If it actually exists, please post a link.

HeatMiser · 8th May 2005, 03:27 AM

I was just looking at those earlier today.

http://www.partsexpress.com/pe/pshow...number=279-234

Nappylady · 8th May 2005, 03:39 AM

How odd... I couldn't find it on their website.

Usually, plugging the item number (with hyphen) brings the item right up... it didn't work. I just tried it again and... it still doesn't work.

Hmm.

bigmike216 · 8th May 2005, 10:19 PM

maybe you had a period after the item number?

454Casull · 8th May 2005, 10:23 PM

Works for me.

Bill Fitzpatrick · 8th May 2005, 11:31 PM

Works for me too.

qwad · 9th May 2005, 12:41 AM

Hi, should work ok with the vifa's in mtm, dunno 'bout the line array, suck it an' see...... cheers TC

wrenchone · 9th May 2005, 01:09 AM

They didn't have the response graph up when I bought the tweeters, but they have it now, and it looks ok. I'll figure at crossing over at around 5k. They are impressively small - a good thing for the MTMs, as there is no room on the front panel of the standard Parts Express 0.5 cubic foot box for two 4.5" drivers and a standard round dome tweeter. Can't complain about the price, either... The oblong mounting bracket should allow close center-to-center spacing for line arrays.

I want to finish the MTMs first, though, as a reference point. I am running omnidirectional speakers at present (have been for 25 years), and I don't want to hop right into making yet another exotic speaker without trying a plain vanilla ported design first.

eddog · 9th May 2005, 09:29 PM

I used a single Vifa TC11MG-07-04(buyout) with that tweeter, x-overed at 2800 all inside a box using Masaaki Takenaka's spiral horn(PVC) idea. Just this weekend my Pastor and I sat down and A/B'ed them using Mostly Vocal music but with some great Glenn Miller recordings. The other speakers were some Bose 301's that he thought sounded pretty good.
Masaaki's design simply blew them away for low end extension and all around clarity. Power handling is not very high as the 4.5 inch cone really has to travel to get them low notes, but at moderate levels the tweeter and Vifa along with the spiral horn produce great sound at a very low price. (I will get the photo's to you Masaaki, just got our computer with the usb ports for our camera, so expect them soon)

7th May 2005, 06:34 AM	#1
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	Pats Express Neodymium Tweeter I just picked up a few of Parts Express #279-234, a 1" soft dome tweeter with neodymium magnet and ferrofluid damping. From the markings on the tweeter, they appear to be surplus from Atlantic Technology. I was intrigued by the small size, and was thinking of using some of these in a miniature MTM with some 4.5" surplus Vifa drivers, and also in a line array with the cheapo Pioneer 4" drivers. Has anyone had a chance to messs with these tweeters yet?

9th May 2005, 12:41 AM	#8
qwad diyAudio Member Join Date: Mar 2003 Location: adelaide city of churches	Hi, should work ok with the vifa's in mtm, dunno 'bout the line array, suck it an' see...... cheers TC __________________ we all have problems only some people have more than most.... long live the Magyar (Hungarians) in the world!

9th May 2005, 09:29 PM	#10
eddog diyAudio Member Join Date: Nov 2004 Location: Small Town in Minnesota	I've used them both! I used a single Vifa TC11MG-07-04(buyout) with that tweeter, x-overed at 2800 all inside a box using Masaaki Takenaka's spiral horn(PVC) idea. Just this weekend my Pastor and I sat down and A/B'ed them using Mostly Vocal music but with some great Glenn Miller recordings. The other speakers were some Bose 301's that he thought sounded pretty good. Masaaki's design simply blew them away for low end extension and all around clarity. Power handling is not very high as the 4.5 inch cone really has to travel to get them low notes, but at moderate levels the tweeter and Vifa along with the spiral horn produce great sound at a very low price. (I will get the photo's to you Masaaki, just got our computer with the usb ports for our camera, so expect them soon)

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8th May 2005, 03:02 AM	#2
Nappylady diyAudio Member Join Date: Feb 2003 Location: Salt Lake City	Parts Express doesn't have an item #279-234. If it actually exists, please post a link.

8th May 2005, 03:27 AM	#3
HeatMiser diyAudio Member Join Date: May 2003 Location: Washington State, USA	I was just looking at those earlier today. http://www.partsexpress.com/pe/pshow...number=279-234

8th May 2005, 03:39 AM	#4
Nappylady diyAudio Member Join Date: Feb 2003 Location: Salt Lake City	How odd... I couldn't find it on their website. Usually, plugging the item number (with hyphen) brings the item right up... it didn't work. I just tried it again and... it still doesn't work. Hmm.

8th May 2005, 10:19 PM	#5
bigmike216 diyAudio Member Join Date: Jul 2004 Location: BC, Canada	maybe you had a period after the item number?

8th May 2005, 10:23 PM	#6
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Works for me.

8th May 2005, 11:31 PM	#7
Bill Fitzpatrick diyAudio Member Join Date: Jun 2001 Location: Eugene, OR	Works for me too.

9th May 2005, 01:09 AM	#9
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	They didn't have the response graph up when I bought the tweeters, but they have it now, and it looks ok. I'll figure at crossing over at around 5k. They are impressively small - a good thing for the MTMs, as there is no room on the front panel of the standard Parts Express 0.5 cubic foot box for two 4.5" drivers and a standard round dome tweeter. Can't complain about the price, either... The oblong mounting bracket should allow close center-to-center spacing for line arrays. I want to finish the MTMs first, though, as a reference point. I am running omnidirectional speakers at present (have been for 25 years), and I don't want to hop right into making yet another exotic speaker without trying a plain vanilla ported design first.

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