This has been discussed many times on Audiogon. There are those that believe in it and those that don't.
Simply from an engineering design perspective, a drift in response over time is an undesirable drawback in a high quality audio component. Most equipment manufacturers will try to make their designs reliable and stable under a variety of operating conditions including temperature, load and over time.
Simply from an engineering design perspective, a drift in response over time is an undesirable drawback in a high quality audio component. Most equipment manufacturers will try to make their designs reliable and stable under a variety of operating conditions including temperature, load and over time.