To damp or not to damp JMW-9 Sig ?

,,just for your edification..the Gingko platform is in 2 pieces with the table itself suspended, but the motor not.

Sberger, I tried just a little fluid and there was some improvement, most notably in the bass. However I'm not sure if there was some trade off with other areas ie the airiness. I must also note that the table is now sitting on the sandbox with Travertine platform atop the sand. It also has the stock feet. Whereas when I tried damping the arm before the TT had the Super Feet installed and was mounted on a 4" maple slab. At that time there was an airiness to the music that was quite nice. The bass was there and deep, but not very well defined. Now I have defined bass but have lost the airiness that it had before. So I'm not making a good comparison as yet. But it does show that good results are available using the damping fluid.

Stringreen, Thanks for the info on the Gingko. I was not aware that it was 2 piece.

Stltrains, I am going to order some isoblocks today. This has been the plan but haven't had time to do so yet. thanks for the info.

I haven't had time to do much listening in the last couple of days, but I do now have the maple top for the sandbox. I'll be experimenting with it over the weekend. Thanks to all for your info and input.

I'm a long term TNT/JMW-10 owner. The issue of damping is very cartridge dependent. In general the high compliance catridges like the benz and the grado's benefit from some damping. Low compliance cartridges do not. When I had a grado reference I had the damping trough about half full. After I upgraded to a koetsu jade, a low compliance cartridge, I use no damping. The dynevector is a low side of medium compliance cartridge thus it may or may not benefit from a small amount of damping. You might want to try just a few drops of the damping fluid in the trough and compare it with no damping.

12-31-07: Artemus_5
FTR, I thought about trying less fluid. I thought it may have been over filled. But there was no fluid on the underside of the JMW-9 arm when I took it off of the pivot. That made me believe that there was not too much fluid. The trough was about 1/2 full.

I suppose that if there is no fluid on the underside of the arm - the part of the bearing in the arm wand -, then there has been no damping going on at all. I had the same experience. I'd say everyone who fills the well 1/3 or 1/2 should check out if there is any fluid on the bearing on the arm wand. If I have understood HW right, you increase/decrease damping with the screw on top of the arm wand.

Best

Please be more specific about the adjusting screw for damping. I find no mention of it in the instruction manual, and don't see one one my arm, although mine in a 10.5i which very well may be different