Oh, I apologize to Richard, I owe him some feedback on the built in tuner in this unit, now that it is in situ in my new house.
The EX-A1 is in the basement of my home, an unfinished space of around 30x30. It is perched on a stand around 3 feet above the floor, and not far from a window, but still well below ground level.
I am able to, using the stock cheesy antenna, pull in all the stations that I get on the main floor, using the baby brother FS-X1, AND many stations that I cannot pick up, with the ground floor unit.
Now, I am not a heavy user of tuners, and don't really know how to share more - the net of it is, that the built in tuner sounds decent, and pulls in stations well in my basement. That is all I can ask of it!
The long awaited Felicia balanced power unit is in the mail, heading for my new house, so I will share how that does or does not improve things, in due time.