Cardas has great customer service. I emailed George Cardas when I had a problem....the response to my email was received within hours. To make a long story short, he replaced my cables with ones that were 1/2 meter longer, at no charge. . His Neutral Reference cables are great-sounding ! VPI is also very good for customer service. As well, I like their philosophy that just about everything they make is upgradeable as funds become available.
Best and Worst customer service?
My vote goes for Sonic Frontiers, as Best! I was contacted within an hours, after e-mailing a question. Wery friendly and helpfull!(they can count me-in on the next purchase) Thw Worst? Linn audio! It's been over a month since i submited a Q! I am stll e-mailing the question...i am sort of amused by now!