Best U.S. made integrated tube amp under $2500?

Is there a better U.S. made integrated tube amp than my current great sounding Chinese manufactured Cayin A50T?
Music of preference is vocal; opera, lieder as well as chamber and chamber orchestra works. No large orchestral music.Some pop singers but no rock. Speakers are the wonderful Reference 3A Dulcet mini monitors (just received back from Canada with their basic upgrade installed), Cayin CD23 cd player in a small den.
I'm not unhappy with what I have but am curious if I can get better with an affordable U.S. made product.