I can't stand the DT3 tweeter. Not sure if they always sounded harsh, or whether somehow they deteriorate over the decades. I replaced them in a pair of Magisters, as well as recapping the crossovers and changing the internal wiring, and I like the sound of the speakers now.
Be minded that I am a big fan of large drivers in sealed enclosures generally. (Interestingly, the 15 inch woofer in the Magisters come straight off the binding posts (not via the crossovers).)