Al,
Nice recordings. So who is that old guy doing the talking?
Listening to the MP3's with my laptop, and (2$ Jet Blue) headphones, I think there is a bit much pre-emphasis. With Windows media player, and the built in equalizer, I can make you sound really good. I show the settings in the attached file.
Thinking about it, many receivers will drop the lows, and the highs, and your current settings might be about right for many, but not all receiver situations. You certainly cannot please everybody, so at some point, at least me, I dial it the way I want it, and then transmit.
It would be interesting to see that 32V on the scope, as I bet it might over modulate easier at 3 Khz well before then at 1 Khz and down. After I equalized things at my end, you were broadcast quality.
Jim
WD5JKO