I am running a Jolida 3205 (a Jolida 502A modified by Bill Baker @ Response Audio in New York) with my JD100. I have both units sitting on Aurios Isolation bearings. The results are very musical.
You might try changing the tubes in your JD100. I am running Ei tubes in mine.
You might try changing the tubes in your JD100. I am running Ei tubes in mine.