Bah Hum Bug


I am having an issue with hum.Hum is only apparent in very quiet passages while listening to lps or when unit is in idle mode.Unit is Dead quiet..no hum in cd mode of operation.

I am running a Fosgate Signature Phono amp,Thorens Td124 with Ortofon Silver Meister Cart,Wright AU-1000 linestage, 2A3 SET power amp into Klipsch Heresy speakers.

When ground is is attached from TT to Phono amp the hum is intolerable so I run the TT with no ground to Phono amp.

I have tried cheater plugs and that has made no difference.

When volume is turned up say past 1 oclock in either the Wright or the power amp the hum is very noticable. Is this indicative of the high efficiency of the Heresys and 2A3 tubes? or is there some other thing going on here?

Please help.Thanks.
fromunda

Showing 6 responses by fromunda

Yes but that phono stage did not have the hum-rush problem. Could it be my cart? the Ortofon SPU Silver Meister?
Fosgate sig was the last addition. But I believe the hum was there before as well.
Yes you know the sound does change when I move the phono cables. These are brand new Shielded Tributaries A6's. The hum would change upon moving them around with the old cables as well so I replaced them thinking that was the culprit.