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Old 3rd October 2006, 06:16 PM   #1
loddie is offline loddie  United States
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Default Small Heil Tweeter

Does anyone know where/how to source a small Heil tweeter such as the Jet Elac or Adam Audio A.R.T.? I would like to use a Heil based tweeter, but size is important. I would like it to be as small as possible, such as the examples I gave. FYI, it will be passed at 3500 Hz or higher.

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Old 3rd October 2006, 08:35 PM   #2
badman is offline badman  United States
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There are a number out there, from ebay units, to the units from Eton to the Mundorfs.
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Old 3rd October 2006, 11:25 PM   #3
loddie is offline loddie  United States
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Thanks Badman. I'm aware of all the Heil variations. I was just wondering if anyone had been able to obtain a pair from the manufacturers such as Burmester. I've already been rejected by Adam Audio. I'm only interested in smallest Heil variation available. The Eton is too large for my application
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Old 6th October 2006, 01:33 PM   #4
badman is offline badman  United States
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Mostly companies that have proprietary units made (unless they're in the DIY market) are loathe to sell them, as they're a unique selling point of their product.

FWIW: the larger the better in these: they don't have much mass (even the big one is a whopping 1 gram moving mass, which combined with the huge magnets gives you 97db W/M plus)

But good luck in your project: I have to ask, what kind of speaker are you building where you need such a tiny variant?
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Old 7th October 2006, 03:51 AM   #5
loddie is offline loddie  United States
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I would like to use it in a car audio application. I have a VW new Beetle that I am installing a four-way set-up on the dash. I was hoping to source a small Heil so I could mount it coaxially in front or slightly offset the midrange. The Jet Elac, Burmester, and A.D.A.M. Audio tweeters are really small once you remove the faceplate Would only need it to play down to 3500hz. Cheers
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Old 14th October 2006, 07:21 PM   #6
Taco is offline Taco  Netherlands
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The Jet tweeters from the cheaper Elac loudspeakers where available by Intertechnik under the brandname "Gradient GRT 85". But I don't see them anymore in their catalog. Those tweeters have to be crossed high. See also their manual where they have opened one of these tweeters (page 5) http://www.kirchner-elektronik.de/fotostory.htm

Click the image to open in full size.


Other types to check are Eton ER4, I used these in several designs very nice sounding tweeter. Can be used < 2000 Hz.

Click the image to open in full size.

Mundorf AMT2340, I'll try this tweeter in next months, hopefully it's an improvement over the ER4 (the Eton is out there for several years).

Click the image to open in full size.
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Old 14th October 2006, 08:30 PM   #7
v-bro is offline v-bro  Netherlands
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http://images.google.nl/imgres?imgur...ial_s%26sa%3DG
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Old 14th October 2006, 08:37 PM   #8
v-bro is offline v-bro  Netherlands
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Sorry the link won't work, but look for the fostex FT7RP, google on "imaxges". I found a french site that sell them for just over 100 EUR.
Size is stated:76x86x32 mm cutout:50mm....
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Old 14th October 2006, 08:39 PM   #9
v-bro is offline v-bro  Netherlands
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Or try get your hands on some ATD RT-1 circular, they're 67mm round with a 94mm round frontplate...
They're circular magnetostats (ribbons)...
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Old 14th October 2006, 08:51 PM   #10
loddie is offline loddie  United States
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Thanks V-bro and Taco. Taco, that Intertechnik Gradient GRT 85 is exactly what I was looking for. Does anyone know of any sources that may still have some in stock? They do appear to be discontinued
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