Charlie, thanks for your comment.? I was about to respond that I checked both Fluke DVM ratings and one is rated to 100 kHz, the other 200 kHz.? This was an original concern of mine when I decided to use the DVMs for the rms voltage measurements, instead of an o'scope.? I even checked one DVM to make sure and it was okay.? However, I had not check the other since its rating was 100 kHz, but your comment prompt me to do so.? Using a 50 mv rms signal generator output and the DVM rated for 200 kHz, the direct voltage measurement varied from 50 mv rms to 47 mv rms going from 20 Hz to 20 kHz.? On the DVM rated for 100 kHz, the measurement varied from 50 mv rms to 10 mv rms, going from 20 Hz to 20 kHz. Now, I suspect that this must be the source of my confusion about the operation of the tweeter.? Thanks so much! - Ed
