Um, hello out there. Has anyone heard the OP's question? Cuz I got to this thread by googling the same. He didn't ask for comparisons between the FR64S and the Denon DA307. The FR64, in all it's versions I believe, is dynamically balanced and the FR54 is not. Radically different designs. I've never had a dynamic. Has anyone heard a FR54 and a FR54? No sermons needed. ;^)
Fidelity Research FR-64 vs. FR-54
In a prior discussion, I had asked about tonearm suggestions for a Luxman PD-441 table that currently has a Denon DA-307 tonearm and Grado The Reference high output cartridge. Many suggestions were provided. A Fidelity Research FR-64 was suggested as a simple replacement. I'm wondering if the FR-54 would also be good, being that it is mentioned in the Luxman manual in the same category as the Denon arm on there now?