It’s hard to tell Yaesu’s rationale for having two current HF radios $100 apart. IMO, comparing the receiver specs is paralysis by analysis…not enough for the human ear to differentiate, even including the 101D. One is not going to get you more Q’s over another.
But, tongue in cheek, Yaesu LOVES acronyms. We all know what AESS means…Acoustic Enhanced Speaker System. For $100 less than the FTDX-10, they’re throwing in an external speaker, which usually would cost you a bloated $200 extra. Even the model number is significant. They left out the “DX” designation on the 710, meaning the radio is not designed to work DX…only domestic Q’s

. They added a “7” in front of the “10”, whatever that means.
I think the Yaesu design engineers and marketing department were smoking something strange with this one. Maybe in the final analysis they’re just going to throw both radios against the wall, and see which one sticks

.