Goods point about the Mayware eccentric counterweight.Ant wrote: ↑Mon Apr 05, 2021 7:06 pm
Counterweights with offset holes are a pain in the arse as the azimuth and tracking force adjustments are altered by each other. The mayware counterweight will also eventually creep downwards and cock the azimuth up, even with a replacement bush. Decoupling the counterweight in this way seems to muddy the bass response to me too.
The amount of things to consider isnt trivial.
I did also consider using a cursor weight on the arm tube to allow the effective mass to be altered, im still considering it if i can get away with a small weight, because it will alter the weight distribution and stability.
Further buggering about is required for that, maybe a small piece of stainless tube with a 12mm id and some felt inside to make it stay in place.
Hmmm
One of the things I did to get it to work with the Denon 103R is to add a second, brass, counterweight behind the standard one. This one is a concentric cylinder with a grub-screw. Maybe this helps the bass to be tighter.
As regards effective mass, it seems to me that adding weight at the headshell is the best way to do this - then it's a very short distance from the stylus to the inertia against which it works. I used lead plate - might have been something James suggested from Morsiani's work.