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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
 
I rolled the 6dj8 tubes... that helped. I grounded the CD player, lifted the preamp ground and grounded the SA 220... very little hum now.
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gbryant OP
51 posts
 
As for the upgrades... I'll eventually do them, but for now I'm happy with the SA 220. Besides, my CJ PV-11 preamp is getting $1200 upgrade... can't afford both at this time.
rrog
1,958 posts
 
Who is upgrading your PV-11?
slikric3000
638 posts
 
Get a budget line conditioner, I had hum from a computer i was running into my stereo, plugged computer into the LC and problem solved
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gbryant OP
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In House Service Company, East Setauket, NY
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