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Help With System hum, Please

I have a hum in my system at higher volume between songs at when lower level imformation on a song is being played.It sounds like an amplified sound coming from the speakers.
My phono pre is a Zesto Andros (stock tubes)turntable is a VPI superscoutmaster,cartridge is a dynavector XX2mk11.The cable between the tt and phono stage is an ortofon phono cable and then cardas golden ref going from phono stage to the pre.

I have tried running extra grounds from the TT with no luck.Could the stock tubes be the problem?The tubes are JJ's.Any suggestions would be great as this is driving me crazy.I have eden sound terra stone footers on the TT.

Being new to vinyl, I have another question.Should the stock powercord going from the vpi sds to the outlet and the pc going from the sds to the tt be replaced with after market power cords?I am not sure what to try next to solve this problem.
Thanks in advance
moonguy

Showing 3 responses by gospelcollector

gospelcollector
14 posts
 
Marakanetz,

I've used tube phonostages for 14 years now and the only time it was noisy was when it needed servicing, so except for one month during that whole time did I have any hum.
gospelcollector
14 posts
 
I currently run two McIntosh C8's around 57 years old, completely original never serviced before. I bought them last year had them sent directly to DeWick thinking caps would need changed the least and he didn't have to do anything at all, even the tubes tested superb. Dead quiet no hum even at full volume. Sure they weren't used much over the years but six decades later and they sound amazing untouched. I will be upgrading from them for remastering purposes, but they sound better than any SS gear I've heard including Naim.
gospelcollector
14 posts
 
Electricity and voodoo seem like the same thing to me, no joke. :)))
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