I contacted them about authorized service centers. They were very quick to return my email.
The lady who replied told me that she will get back to me with the closest one in my area. She mentioned, however, that "We do have several repair stations nationwide ..."
Several nationwide is not very many. So the chance that there is one within driving distance is very small. This is definitely a minus, in my opinion. Maybe I can convince my local repair center (that repairs all major brands of musical electronics), less than a mile from my home, to become an authorized FBT repair center.
Beakybird