I see someone already mentioned Salk Sound. I would have a conversation with Jim Salk. He's a great guy and will give you good advice. He can even design a speaker to your liking. Also, don't overlook Daedalus. I hear their mid-range is phenomenal.
purchasing US made speakers
I currently have psb imagine t2 speakers. I am interested in replacing them with US manufactured speakers 10-12 k being the maximum price....perhaps aerial acoustics, vandersteen,,,,,any thoughts? My hearing at age 70 diminishes at 8,000 hz so a good midrange is probably good.