Engrove Audio Tools · Tonearm database reference
Fidelity Research FR-66S
Fidelity Research FR-66S tonearm reference data for cartridge matching, effective mass, effective length and setup context.
Reference specifications
| Manufacturer | Fidelity Research |
|---|---|
| Model | FR-66S |
| Effective mass | 38 g |
| Effective length | 307 mm |
| Headshell connector | sme_universal |
| Cartridge weight range | 10 g–38 g |
Setup context
Use this tonearm reference with the Tonearm Match Lab and Tonearm Geometry Lab to plan cartridge matching and alignment. The key setup inputs are effective mass and effective length.
Reference data is best-effort and should be checked against manufacturer documentation before critical setup decisions.