Good morning. I just became a member! Had to do it, for, as Kent notes, finding info on old EMI speakers is pretty darn hard. I'm the guy that found a pair of EMI 319's yesterday and put that post up on audiokarma, the one mentioned above in this thread. Mine are in amazing shape, save for a few nicks and scratches in the finish, but I just don't know enough about them to start experimenting with power input and amplifier type. That said, they do sound spectacular with an NAD 7400 power envelope receiver (100 watts per channel) but I have not pushed the volume. Instead I ran them for about 8 hours continuous at very low volume using easy listening music yesterday and plan on doing same at slightly higher volume today. They seem to be pretty sensitive, but again I'm not certain. No idea about ohm rating either. I'll keep searching for info, especially about that capacitor, it's type, value, and what that jacket around it does, and if I find anything I'll share it here.