I have a Kenwood Supreme 700m, built in the early 70s, recapped, re-transistored, etc about two years ago.
Lifespan of Power amps
What is a reasonable amount of time a power amp should perform without trouble, or need replaced? If kept in good, clean condition I'm guessing 20-25 years, is this correct? I have an 18 year old power amp and am just trying to figure how long it will be until I will need a new one. Does anyone think the technology is the same today as it would have been 18 years ago for amplifiers?