I read some forums where the old / vintage school of high efficiency speakers - Klipsch, Tannoy, Altec, JBLs. even Audio Notes are the only way to go. On others like audiogon the newer high eff speakers - horns, Zu, Horning,Coincident, etc. are in a league of their own. I own Zu Druids but somewhat torn about which way to look next - the classics or the moderns...having not heard any of these for myself. Short of listen for myself any experience here that is beyond dogma.