Here's a guess on the effective mass...
Thank you @dekay. It is crazy how difficult it is to find such basic information. I am very confused as there are many people suggesting the Denon DL-110, but according to the resonance calculator, with the cartridge being so light and the compliance low @ 6, it does not look to be a good match. I am considering the Denon as well as a Nagaoka MP-200 and both the AT VM540/740. Can anyone offer any advice?
I've read that the Denon compliance specs are low (they are generally @ least double the stated spec).
Don't know if it's true or consistant.
A local guy successfully used a couple of Denons in the same arm I use (12.5g effective mass) but, I think he swapped in a slightly heavier and much stiffer headshell.
I still use the old stock perforated SME/Sure headshell, but once had excellent results using a solid Technics one with an old, old Grado. (not the 15 year old Grado I currently use).
Try researching cartridges of interest @ Vinyl Engine and Steve Hoffman's site to see what arms (effective mass) are compatible
in the real world.