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Counterpoint SA 220

I recently purchased a Counterpoint SA 220. It's in very good condition and sounds great... just as I remember my SA 12 sounding.... BUT, I can't get rid of the hum. You think I should replace the tubes? Has anyone had in luck getting these to quiet down?
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gbryant OP
51 posts
 
In House Service Company, East Setauket, NY
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gbryant OP
51 posts
 
Sorry, no line conditioners here...

I have a dedicated circuit for my amp on the front wall between the speakers and another dedicated circuit for the components on the side wall.
slikric3000
638 posts
 
Like maybe try 1 for process of elimination ???
rrog
1,958 posts
 
So, this isn't really an upgrade, its a mod.
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gbryant OP
51 posts
 
They are replacing all the caps, transformer, tube sockets, power cord, etc., etc.
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