Ringing tubes

[d_composer]

I have an Eros Phono pre-amp and a Stereomour II and today, while listening to Metallica’s “...And Justice For All”, at a volume worthy of listening to this LP, I started hearing a loud ringing in my system. Could this be caused by sympathetic vibrations of the tubes (it seemed worse when there was a lot of palm muting on the guitar track)? Or is it simply feedback through my Ortophon red? Either way, does anyone have any tips to quiet the ringing? Thanks!

 

[Paul Birkeland]

The first thing to try would be swapping to a different source to remove the Eros/TT from the system.

EF86s can get a little microphonic, and you may also end up needing to remove the springs from the tube shields if that's the issue you end up having.

 

[Doc B]

How close is your Eros to your speakers?

 

[d_composer]

Right smack dab next to the speakers. So that’s what’s doing it? Would a tube ring or something similar do the trick?

 

[Doc B]

Move it and your turntable as far away from the speaker as possible. That is a recipe for trouble.