I have a KSA 50, though I rarely listen to it anymore. Erik is giving you excellent advice. I actually took my fan out, removed the motor label and lubed the motor with some light weight motor oil and then put it all back together. It’s extremely quite now.
If this amp has been used regularly for the last 25 years it’s time for a recap. That class A heat really shortens the life expectancy of the electronics.
If this amp has been used regularly for the last 25 years it’s time for a recap. That class A heat really shortens the life expectancy of the electronics.