The AES AE-3 built by Cary Audio Designs in North Carolina is really nicely built with all point-to-point wiring. It has three inputs. The DJH Signature version is tube rectified and had the option of remote control.
The Dodd Audio Preamp is what i have in my system is American made and is a very good Pre-amp. The new model even has a variable gain knob to adjust the gain to match your amp/speakers/listening level. All models are made to order, so you just go to his site and give him a call.