Anyone try Townshend Super Tweeters?

Albert Von Schweikert highly recommended Fountek 3" ribbon super tweeters to me. For $81 apiece I purchased them through Madisound and installed them a couple weeks ago. I added a couple quality Hovland capacitors, 5 feet of wire, banana plugs and off we go. Improved imaging and coherence struck me first. Oddly, it wasn't so much the extended highs as it was the tightness through the entire music spectrum. I can't compare the Fountek's to the competition but for the price and Von Schweikert's recommendation I'm very happy.

my own speaker is ruler flat(plus/or minus 1.5 db)to 25khz

If you're -3db @ 20-25kHz the only reason to boost your hi freq is if the room is damped: the wavelength at 20kHz is very short, so average thickness material will absorb...
Assuming you want a HF spl boost, use a 1st order & cut higher rather than lower. The good thing is that the s-tweet's upper resonance will be too high (~100Khz) to be significant in the audible spectrum as its effects daisy-chain downward.
But there, you'll need a Murata or a Tad (or Townshend/Tannoy -- but they're very expensive). There is also a FOuntek s-tweet that's priced logically. The Fountek mentioned above is a normal tweet (37kHz) and will only boost your audible hi-frequencies.
Measure yr main spkrs' power rating & make sure you equalise the s-tweet accordingly. Also make sure you place it correctly on the same vertical acoustic plane as the tweet while you're at it -- or you'll be out of phase with the tweet!
Cheers

So,Gregm--Based on my set-up,in a dedicated room,with some acoustical damping(only to cut out any glare,and the room does have a wonderful,natural sound),do you think my idea is overkill.I,personally have NO problems with my current high freq presentation,but thought that if I added a super tweeter,it would level the playing field,with the "berylium/diamond dome" crowd.If there really is an audible advantage,to them.

Any thoughts would be appreciated!

Jtgofish. Hmmmmmmm.... .5uf or 1uf cap? Are you using an inductor in series with the cap?

I've been using Tonian Supertweeters (ribbon) with Harbeth C7s for a number of months. They've added openess, air, sparkle(the good kind - like finer musical nuance) along with extended highs. Tonian matched them for my speakers specifially and sent along extra resistors to adjust the output level if needed - didn't have to. I've also, for fun, tried them with Spendor 3/5s and got the same result. I'd have to say that anyone with Harbeths, Spendors, or (based on my listening in stores only) some models of Sonus Fabers would really like these tweeters.

I can't say whether they'd be useful with speakers that claim to go to 25khz anyway but Tonian claims they have output to 40,000hz. Tonian offers a home trial but they are expensive. However, I find them indespensible.