It is hard to beat a Ionovac plasma tweeter, and a horn at that. But, they need to be rebuilt, and are expensive. I also like the Magnepan tweeter/Ribbons, very detailed and natural, big open space, the Legacy Heil tweeters are wonderful, (Bill Duddleston reportedly has every significant tweeter made, and he chose these...I would trust his ears) and the Aerial tweeters on the 20T are wonderful. Domes just donn't open up for me as well. But I do like the top end of the Cremona M by Sonus Faber. Domes can do things like efficency, but many hurt my ears. Personal preference I guess.....
