I had your problem and virtually the same set up. I cured it with an honest tube pre amp -the Cary made AE-3- which may still be available from Upscale Audio.
I now love my phono stage the Graham Slee Gram amp 2 SE. put through the pre. Alsoyou must get Cardas Golden refs or other Cardas "Golden" upper level interconnects between your pre and your amp. If you don't have a tube power amp consider it seriously.
If you just get the pre (roll the 6SN7s if you want I like rolling so I did) and the Cardas cable which will have to be used as Cardas is not making that style of cable, you will be happy and amazed. I guarantee it!!
I now love my phono stage the Graham Slee Gram amp 2 SE. put through the pre. Alsoyou must get Cardas Golden refs or other Cardas "Golden" upper level interconnects between your pre and your amp. If you don't have a tube power amp consider it seriously.
If you just get the pre (roll the 6SN7s if you want I like rolling so I did) and the Cardas cable which will have to be used as Cardas is not making that style of cable, you will be happy and amazed. I guarantee it!!