@chocaholic recap for audio electronics is like oil change and spark plugs for car. ur car may not have ever broken down, but but u still give it an oil change and new spark plugs when its time to do so.
man id luv to have one a them 717s. happy listening brother!
Sansui AU-717
Bought my AU-717 integrated amp new in 1977. Have used it intermittently over the years and it works and sounds great, 45 years later. The cover has never been off and I still have the owners manual. Any reason to have it serviced? Caps, etc? If so, why? And can you recommend a knowledgeable service resource in the Atlanta area?
I generally live by the “if it ain’t broke, don’t fix it” philosophy but suspect that may not apply here.