I recently had some work done by Ben at High End Audio Repair in Brooklyn, NY. He is an ARC authorized repair tech, did great work at what I thought was very reasonable all things considered. You can look him up and give him a call, you can mention that he recently did work on a 5se pre for me.
http://www.highendaudiorepair.com/audio-research-arc.html
http://www.highendaudiorepair.com/audio-research-arc.html