CeraDome Tweeter - flat from 1200 Hz - 25 kHz

otto88 · 14th August 2008, 01:44 PM

nice THD performance too:

Anyone know if the CeraDome Tweeter is available diy, $ etc?

http://www.acousticdev.com/cms/index...ized&Itemid=59

The people behind it inc Dan Wiggins

CSS/XBL · 14th August 2008, 02:08 PM

Hi,

It is an OEM only product as ADI does not manufacture under their own name. I am aware of one company that is looking at doing a custom version and if they do then it may be available to the DIY community.

Bob

otto88 · 14th August 2008, 02:12 PM

Mmm, wonder if the minimum OEM buy would be in the ballpark of a group buy?

CSS/XBL · 14th August 2008, 02:19 PM

Normally 1000 minimum, though a "hungry" manufacturer might do 500.

Quite a large group.

otto88 · 14th August 2008, 11:28 PM

That's a shame.
I guess the nearest existing driver to the CeraDome would be ScanSpeak’s D3800, also 38 mm. Lower Fs, much less Xmax and I have a hunch that the CeraDome would be a lot more affordable, if . .

gtforme00 · 14th August 2008, 11:58 PM

This looks an awful lot like the Tang Band ceramic dome tweeter with a different magnet gap. Maybe ADi did the development work for Tang Band, or maybe they just took an existing Tang Band design and added the XBL air gap design to increase the excursion capability. I'm not saying that it wouldn't be anything special, but unless you really need the low end capability, I think you would probably come out better to get the Tang Band now rather than wait for some boutique offering for twice or three times the price.

The dome design is probably the same anyways, the Tang Band spec sheet looks very good (but they always do).

If you look at the ceradome FR graph, it looks just like the Tang Band graph (and is scaled in the same flattering way that Tang Band always uses).

Tang Band Graph

ADi Graph

Brisso57 · 15th August 2008, 01:03 AM

Swings and roundabouts ...

The lower you cross in a tweeter, the greater the proportion of the total power it's going to have to shoulder. I think that will limit it's applications by comparison with a tweeter coming in at +4500 Hz.

cheers

Doug

David Gatti · 15th August 2008, 01:04 AM

This is the type of tweeter I've been waiting for (high Xmax tweeters). Hope Seas and others do something similar.

otto88 · 15th August 2008, 01:19 AM

Imo it’s a wonder it took this long for XBL2 to be used in a tweeter.

Seas etc would have to license the XBL2 that allows the whopping Xmax. I'm sure ADI/ Dan would do it for a fee, but maybe Seas for one wouldn’t like to "buy in" technology from elsewhere? Someone would though.

otto88 · 15th August 2008, 01:20 AM

Doug

SL always crosses at 1500 Hz. That gives less beaming and more detail in the range 1500 – eg 4500.

14th August 2008, 01:44 PM	#1
otto88 diyAudio Member Join Date: Dec 2007	CeraDome Tweeter - flat from 1200 Hz - 25 kHz nice THD performance too: Anyone know if the CeraDome Tweeter is available diy, $ etc? http://www.acousticdev.com/cms/index...ized&Itemid=59 The people behind it inc Dan Wiggins

15th August 2008, 01:03 AM	#7
Brisso57 diyAudio Member Join Date: Sep 2005 Location: the leafy west of Brisbane	Swings and roundabouts ... The lower you cross in a tweeter, the greater the proportion of the total power it's going to have to shoulder. I think that will limit it's applications by comparison with a tweeter coming in at +4500 Hz. cheers Doug __________________ A speaker-builder's parable: "That burned down, fell over, then sank into the swamp. But the fourth one stayed up. And that's what you're going to get, Lad, the strongest castle of all."

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14th August 2008, 02:08 PM	#2
CSS/XBL diyAudio Member Join Date: Oct 2003	Hi, It is an OEM only product as ADI does not manufacture under their own name. I am aware of one company that is looking at doing a custom version and if they do then it may be available to the DIY community. Bob

14th August 2008, 02:12 PM	#3
otto88 diyAudio Member Join Date: Dec 2007	Mmm, wonder if the minimum OEM buy would be in the ballpark of a group buy?

14th August 2008, 02:19 PM	#4
CSS/XBL diyAudio Member Join Date: Oct 2003	Normally 1000 minimum, though a "hungry" manufacturer might do 500. Quite a large group.

14th August 2008, 11:28 PM	#5
otto88 diyAudio Member Join Date: Dec 2007	That's a shame. I guess the nearest existing driver to the CeraDome would be ScanSpeak’s D3800, also 38 mm. Lower Fs, much less Xmax and I have a hunch that the CeraDome would be a lot more affordable, if . .

14th August 2008, 11:58 PM	#6
gtforme00 diyAudio Member Join Date: Oct 2004	This looks an awful lot like the Tang Band ceramic dome tweeter with a different magnet gap. Maybe ADi did the development work for Tang Band, or maybe they just took an existing Tang Band design and added the XBL air gap design to increase the excursion capability. I'm not saying that it wouldn't be anything special, but unless you really need the low end capability, I think you would probably come out better to get the Tang Band now rather than wait for some boutique offering for twice or three times the price. The dome design is probably the same anyways, the Tang Band spec sheet looks very good (but they always do). If you look at the ceradome FR graph, it looks just like the Tang Band graph (and is scaled in the same flattering way that Tang Band always uses). Tang Band Graph ADi Graph

15th August 2008, 01:04 AM	#8
David Gatti diyAudio Member Join Date: Mar 2004 Location: Melbourne, Australia	This is the type of tweeter I've been waiting for (high Xmax tweeters). Hope Seas and others do something similar.

15th August 2008, 01:19 AM	#9
otto88 diyAudio Member Join Date: Dec 2007	Imo it’s a wonder it took this long for XBL2 to be used in a tweeter. Seas etc would have to license the XBL2 that allows the whopping Xmax. I'm sure ADI/ Dan would do it for a fee, but maybe Seas for one wouldn’t like to "buy in" technology from elsewhere? Someone would though.

15th August 2008, 01:20 AM	#10
otto88 diyAudio Member Join Date: Dec 2007	Doug SL always crosses at 1500 Hz. That gives less beaming and more detail in the range 1500 – eg 4500.