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AC power anomalies disrupt only phono stage?

Despite the insertion of a Power Conditioner (Shindo Mr T) for the turntables and preamp in my system……when the street’s power supply is corrupted, the phono stage of my Halcro DM10 preamp is rendered virtually unlistenable?
At the same time…..the line-level inputs (like Tuner and Aux) are unaffected. In fact the sound through the TV (connected to Aux)…..is quite sublime on movie scores.

I am baffled at what could possibly cause the phono-stage to ‘implode’ at these times…..whilst leaving untouched the high-level stages?
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Showing 1 response by zd542

zd542
5,339 posts
 
"when the street’s power supply is corrupted, the phono stage of my Halcro DM10 preamp is rendered virtually unlistenable?"

How do you know that's true? I'm not saying that you're wrong, only that the problem may lie somewhere else. There's a pretty good chance that if the AC is as bad as you say, it would most likely effect all your other components to some degree. I can think of several things that may be wrong with your TT and related components that may be the cause of your problem, as well.
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