In the Bay Area include on your list of speakers to hear, the new ones by Vaughn Loudspeakers in Santa Rosa. They are using Plasma Tweeters/restored Vintage Dukanes. They are Reference Level. The best Tweeters I have heard...ever. This from a ribbon fan. Do hear them, they will redefine the top octave and make everything else sound mechanical and slow. Jallen in Danville