The tweeter is a SEAS H-1212 1" aluminum/magnesium alloy dome modified to Watkins’ specs. I would venture to say that most speaker designers have had a love-hate relationship with metal dome tweeters. They love the detail and transient speed but struggle with their aggressive nature and may eventually settle in favor of a soft dome. CDT Audio coaxial speaker designs are based on our highly awarded mid-woofers and tweeters built into one unit for convenient installation. If the speaker components themselves aren’t of the best quality by design, the music, no matter how pure, will get lost in the transfer.
The LE26 tweeters are obviously no longer available but quite often for sale at eBay. By coincident, the waveguide for the LE26 will also fit the TW034 dome. However, having ten LE26 tweeters at hand made a rare opportunity to report the spread in performance of these tweeters.