That was my question - the DC resistance of the primary.
Just checked a 70v transformer I had in my garage - on the 10 watt tap, reads about 7 ohms. Jumps up with each successive tap to 65 ohms on the 0.625 watt tap. I guessed wrong in the field.
Up on a ladder, I was able to verify that these JBL's were control 25's, and not 25T. No switch for the various power taps. So they were in fact 8 ohm speakers, the amplifier was set up in the 70 V position. Client complained of poor sound. I wonder why?
There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions.
