Tonearm effective mass

Dear Badcap: Go up but the change in the effective mass will be small due that the counterweight is near the tonearm pivot.

If you need a significant change in the tonearm effective mass and if you can then you have to do it at the tonearm headshell position.

Regards and enjoy the music.
Raul.

Correction. If ALL you change is the counterweight (same cartridge, same mounting screws, etc.):
- a heavier c/w closer to the pivot REDUCES effective mass
- a lighter c/w farther from the pivot INCREASES effective mass

Effective mass is a function of mass X the SQUARE of the distance from the pivot, so changing the distance has a larger effect than a change in mass.

Aside from that, for practical purposes I agree with the rest of Raul's post.

Thanks I thought I had read a heavier counterweight with everthing else the same would lower the effective mass. So it would take a big increase in weight to make very much of a difference? I am trying to get the resonant frequency up to 10 from 8 with a fixed headshell.

Thanks