In Reply to: ESS Heil AMT tweeters from 1970s posted by Thermionic27609 on July 13, 2014 at 21:34:00:
If they're the "Great Heil AMT" they are very efficient and they sound really good.
I have a pair that I removed from a pair of "monitor" ESS speakers that I bought at a garage sale.
I mate mine with JBL 2118 midrange speakers playing from 200Hz to the 2500Hz crossover point with the Heils. (simple 6db per octave passive crossover)
The lows are handled by a pair of 15" JBL 2231a.
The JBL 2118 is rated at 97db. Some people say they are more like 95.5db.
I have the Heil AMT padded down by almost 6db to get, what I hear as, a proper balance.
"Sound as Clear as Light"
BTW You can buy the Heil AMTs new for $700 a pair. Also replacement diaphragms for $80 each and you don't have to take anything apart.
Remove the stickers, top and bottom, and the thing just slides out.
http://www.parts-express.com/ess-heil-air-motion-transformer-amt-tweeter--264-600
P.S. The Morel MDT33 tweeter is not hooked up.
P.P.S. I looked up the model 5 tweeter and it's much different than the Great Heil AMT I am talking about.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 07/14/14 07/14/14
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- RE: ESS Heil AMT tweeters from 1970s - Tre' 15:24:58 07/14/14 (0)