There was a question about speaker impedances (8 Ohms vs. 4 Ohms.). On a list server that I follow. Several reponders mumbled about matching of the speaker impedance to the amplifier impedance. To me this sounded like a lot of hooey. I assume modern audio amps have very low output impedance. And that the 4 or 8 ohms is more about the maximum voltage and current that the amp can produce. But I wanted to check with any experts here first. (Phil Allison?) Before gently correcting them. And what about tube amplifiers? Do they have higher output impedances?
Thanks, George H.