Not a manufacturer, but Kevin Deal at Upscale Audio. I also second Vlad Bazelkov at Audio Mirror. And add Kara Chaffe of Dehavilland. Also Egglestonworks (speakers). I have dealt directly with all of these folks and the service was first-class, as expected.
Manufacturers with Excellent customer service
What’s been your experience? Who are the superstars in making things right for the customer, without fuss, and with quick turnaround?