I can’t speak to the Triplett or Thormahlen except that they are both
fine harpmakers, but I’ve heard the Dusty Strings FH36 (mine is a
Dusty Strings Crescendo 34) and can vouch for it’s very clear and
distinctive sound — it sounds very much like the audio clips on the
website (except better!). The worksmanship is excellent, and their
customer services is good. It is a beautiful harp!
I don’t know where you are located geographically, but if you are in
the Pacific Northwest, you might want to consider doing a weekend
trip, shelling out the cash for a hotel room and gas,