Acapella ion tweeters


Does anyone know about Acapella ion tweeters (specifically the TW1S)? I would be interested to know about the following:
1) If you have any experience with them, are they really the best out there? Are there are other tweeters which can match their speed? Are there others with similar technology?
2) Did they have ozone problems at one point or do/did all extant versions of the TW1S have it licked?
3) Are they now available separately? I remember reading in a post many moons ago that they only came as part of their speakers (I believe the mysterious Detlof was the author) but the website has a separate listing for them. And if available separately, does anyone a) have ANY idea what they might cost? and b) who in the US or Europe (or even better, Asia) might sell them?
Thanks, Travis
t_bone
i've heard the campaniles at fcrowder's place. of all the speakers i've heard, i've never been as impressed with anything as i was with that tweeter. its remarkable.
T bone
Question 1: A clear yes. There is nothing better, more transparent, more dissolving, less coloured.
Question 2: Have them for over two years and am still alive and well. They never had ozone problems right from the beginning, it being broken down and converted inside the system.
Question 3: Yes, IF you have the right connections. They are not marketed separately.
If you are seriously interested, drop me a line and I will see what I can do.
GREG: I wouldn't know about knowledgeable, but I LOVE being mysterious.(-;
Thanks to all for quick feedback/answers, especially to the "mysterious" :~) Detlof. I have never heard anything but superlatives used to describe the tweeters (and for that matter the speakers they are usually housed in).

Greg: I am with you Greg, extremely knowledgeable - I am sure I am not alone in appreciating his wealth of knowledge and experience, and more importantly, his willingness to offer it. [:-)] The "mysterious" was an allusion to a previous poster's "mystical Detlof" - unfortunately I was asked to burp a baby before put in in a 'smiley' and found to my chagrin it had already been sent sans smilies. Got one from the baby though...
Detlof: Thanks for being so helpful, yet again. Your offer of assistance is very kind. I asked #3 in part because I am looking for a fair "valuation" as I have found a pair of "essentially unused" used TW1S for ~$2500 and am wondering if they are worth snapping up.

Another question: It is my understanding that they have their own amplifiers built in. Am I mistaken? If built in, how are they? and if not, what would one use to power them?

Thanks, Travis
Detlof: Have you ever heard any of the old Ionovac tweeters ? While i know that these were around many moons ago, i wonder how they would stack up with some of the "better" gear that we have today.

Obviously, this question is open to anyone else that would like to respond also : ) Sean
>
We are a dealer for the Acapella line here in Colorado U.S.A. The tweeters are indeed available separately (at least in this country. I am surprised it is different in your country Detlof). They are $6,900 USD a pair (though the Euro/dollar conversion fluctuates a lot these days). They can be connected to your system using standard RCA connectors. They come intheir own separate, attractive and mountable enclosure. They do not have any ozone problems.

They are very, very good and they will improve any speaker out there (except other Acapella speakers, of course, which already have the tweeter :-).

We are at: www.audiofederation.com. There is another dealer in Texas and another in California (both U.S.) and one in Toronto (Canada). I do not know if there are any in Asia.

The California dealer has some really cool pictures of the tweeter here on Audiogon at: http://cgi.audiogon.com/cgi-bin/cl.pl?spkrfull&1036312491

Enjoy!