I have ers everywhere (one of the Stillpoints people is a friend ;-) but I don't think that would solve your problem.
But before you ditch that lovely amp (or the cute dog) could you describe the connection(s) between your TT/TA and the phono pre, including: brand of phono cable and termination(s), ground wire(s), and brand of TA.
.
But before you ditch that lovely amp (or the cute dog) could you describe the connection(s) between your TT/TA and the phono pre, including: brand of phono cable and termination(s), ground wire(s), and brand of TA.
.