It is not good for any amp and Krells cost a lot to recap. A technician friend was given a Krell by someone who didn't want to spend the money; so far he hasn't either. But each case is different, I was largely inactive in audio for 12 years and some of my amps sat in the box. They are working fine but they are not Krells.
Is it good for a Krell to SIT for 3-5yrs
I have been told that the worst thing you can do is let a big Krell sit in its box for years.I was told the caps all dry out especially if it has not been serviced for 10yrs.I am looking for a KSA 300s but they are all just sitting in the closet then coming out for Big Bucks.Is this not bad for them?