XLO Electric. I purchased used pair of signature Interconnects which developed a intermittently loose connection inside the RCA plug I called XLO they instructed me to return the cable for repair which they would cover under warranty. I didn't expect to be covered by warranty. Cable returned three days later sounded great again.
What companies have gone above and beyond?
I have had a few products back to the manufacturer for different reasons. Some companies have been fantastic to deal with while others have been a disappointment. Sota was so good I couldn't believe it. Aragon was almost as good. What companies have you dealt with that provided exceptional service?