Ortofon tonearms ,Static and Dynamic - Difference?


I see there are 4 new Ortofon tonearms.

Static tone arms: AS-212-S and AS-309-S
Dynamic tone arms: RS-212-D and RS-309-D

http://www.merrillaudio.com/tonearmscarts.html

What are the differences sonically and in general use of the Static and Dynamic versions of each??
downunder

Showing 1 response by peterayer

I read that another thing to consider is how to get the counter weight as close to the arm pivot point as possible. I don't know the technical reason for this, but if all else is equal, the closer the weight to the pivot, the better the arm will sound. Perhaps an engineer can explain the reasons which I think have to do with how quickly the arm reacts to vertical movement.