From Stereophile 2005....
Deutsch: How did you come to implement your current 20-year warranty?
Brian Russell: The amplifiers don't break, so there's no point in having a short warranty.
Tanner: We had 18-year-old amplifiers that were still performing without any problems. At the time we had a five-year warranty, but we had an internal policy of doing free repairs on products no matter how long ago they were made.
Chris Russell: We used that internal policy as a marketing incentive. We wanted good word-of-mouth about the way we treat our customers.
Deutsch: Has that been costly to implement?
Chris Russell: It has made us more money than we could have believed. Usually the problems are minor, or there's no fault found. On some early preamps we used a nickel-plated input connector. If one of these preamps comes into our service department for any reason, all of those nickel-plated input connectors are replaced with gold-plated jacks, no charge. The effect of this policy is that they then go home and invariably tell their friends how well they've been treated. That became the word of mouth about Bryston. You can't buy that kind of advertising. So in 1990, we just defined that policy on paper.