2. analog
  3. 1147839259

Good way to dampen tonearm?

I am in the process of replacing the stock Klotz wiring harness in my Rega RB-900 with the single-piece "Incognito" wiring harness. I have been thinking about adding some damping material inside the tonearm tube, and considered trying a couple of shots of expanding insulation foam.

I'd appreciate comments about the wisdom (or lack thereof) of the foam treatment idea. I am concerned that the chemicals in the expanding foam might be bad for the dielectric on the very thin Litz wire inside the tonearm tube.

If anyone has any ideas, or personal experience, with ways to dampen arm tubes, I'd appreciate getting your commentary.
sdcampbell

Showing 1 response by loontoon

loontoon
301 posts
 
If you want to dampen your tonearm, I suggest water.
But I'm pretty certain you want to damp your tone arm. If you use the foam, it's permanent, you won't get it out. It will work and would certainly make an excellent dielectric.

I suggest instead you try compressing a piece or two of polyurethane foam and sticking it in the tube. Or possibly those soft orange ear plugs available at Home Depot for pennies, or maybe you have some at work.

Now dry off that tonearm and get going, PS, adding water to the spray foam will make it expand even more. I strongly suggest the tonearm be dry.

loon
More to discover