Analysis of Löfgren's Tonearm Optimization

Hickman P. Analysis of Löfgren's Tonearm Optimization. J Audio Eng Soc. 2023;71(1/2):53-61. doi:10.17743/jaes.2022.0062/

@article{Hickman2023_22031,
  author = {Hickman, Peet},
  title = {{Analysis of Löfgren's Tonearm Optimization}},
  journal = {Journal of the Audio Engineering Society},
  volume = {71},
  number = {1/2},
  pages = {53--61},
  year = {2023},
  month = jan,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2022.0062/},
  url = {https://doi.org/10.17743/jaes.2022.0062/}
}

TY  - JOUR
TI  - Analysis of Löfgren's Tonearm Optimization
AU  - Hickman, Peet
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 71
IS  - 1/2
SP  - 53
EP  - 61
PY  - 2023
DA  - 2023/01/06
DO  - 10.17743/jaes.2022.0062/
UR  - https://doi.org/10.17743/jaes.2022.0062/
PB  - Audio Engineering Society
LA  - en
AB  - A rigorous proof is given of the new analytic formula recently presented by Jovanovic for the linear offset p in Löfgren C alignment. An alternate but mathematically equivalent form of this formula shows explicitly that p depends weakly on 1/L 2, where L is the effective length of the tonearm. Simplified derivations of several results for Löfgren A are also presented. Approximate formulas for Löfgren C valid in the limit of large L are derived, compared with accurate numerical calculations, and shown to be sufficiently accurate to account qualitatively for the optimum values of the tonearm parameters over a wide range of L.
ER  -