I have used them, but then I was the one who posted their address. I know a few other local guys who have, and a few dealers. They were keeping it quiet because their techs all worked for Harman. but Harman decided to "save money" and outsource their refurb to a service provider, so there going to make themselves available to everyone. www.ironcrossaudio.com or 201-207-7157. ask for Tony, he's their service manager. Good luck.