Get the info on the specs, specifically size, sensitivity and ohms. Call Madisound , tell them what tweeters you have, and they'll give you advice on what to replace them with. Replacing them should be just a matter of unscrewing them, popping the wires off and reversing that procedure with the new ones.
Switching out tweeters
For you speaker tweakers. I still love my old Snell Type D speakers but, as my ears age, I might be loving the metal dome tweeters less and less. So, I'm wondering about switching them out for some soft dome. I am going to start some research on this subject but hoping to get some feedback from those with first-hand experience with this type of stuff.
I know some will probably say to just buy new speakers, and I am always perusing the local used selection. (Just picked up some pretty sweet Dali Helicon 400 and getting to know them.) The Snells are not going anywhere and getting old so I figure some upgrading might be worth messing around with anyway. I am pretty handy and this could be a fun distraction for me short of buying a kit. Which I would also like to do in the future.
Thanks for any constructive thoughts.