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Hum from one set of IC, but not another

Hi all,

Question: I recently put in a new pair of Clear Day Holograph IC's from the Pro-ject 5.1 SE tt to the LSA Integrated. Before I was running an ancient pair of Monster Cable IC's.

There's a definite ground hum coming from the speakers with the Clear Days, but not with the Monsters.

Any ideas why?
128x128simao
simao's avatar
simao OP
1,822 posts
 
I believe Paul made it as a common line level. I'm going to follow Czarivey's advice with troubleshooting and see what happens. The same Clear Day IC's running from the cd player make no noise at all.
czarivey
5,946 posts
 
CD player does not need shielded IC's and gain levels and so input sensitivity are different line from phono.
dweller's avatar
dweller
3,785 posts
 
My Oppo 105 set shielded and unshielded ICs to buzzing when placed in a superior position (i.e., on top of).
When Oppo moved to the side, all was well.
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