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EPDM rubber vs Sorbothane

32.212.120.78

Hi all,
I may have mentioned that I did a little test of the heatsink fins on my McCormak DNA 0.5. I ran my finger along the fins and they rang at a high pitched level. I put folded, 1/8" thick X 1"diameter, EPDM rubber discs between each of the heatsink fins and the finger test produced significantly less the ringing. I happen to have a bunch of same size Sorbothane discs and replaced the EPDM with those. The finger test ringing is significantly less...I'd say gone even.

I'm think of putting Sorbothane between the faceplate and front of the chassis. Has anyone tried this on any of their components? I wonder if a bunch of discs or strips, fairly close together, would work as well as full coverage with a sheet. Any thoughts on that will be appreciated.

Thanks,
henrylr

Follow Ups:

RE: EPDM rubber vs Sorbothane - Tweaker456 11:04:00 03/18/16 (0)
You might consider the great sounding EAR C-1002. Michael Percy probably still carries it, and for a good reason. Tweaker
My former Forte 4a fins rang, I put rubber bits. My Bryston 4BSST² fins.. no ring nt - Smelly_Socks 19:35:51 03/17/16 (0)
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Careful with the Sorbothane - jbrrp1 20:13:02 03/08/16 (1)
Yes, Sorbothatn has extraordinary damping properties, but it can revert and turn to goo if it sees too much heat, creating a nightmare mess. The EPDM will not (but it is not as energy absorbing).
- RE: Careful with the Sorbothane - henrylr 08:12:25 03/09/16 (0)
  Thanks for the warning. I'll keep an eye on them. As I mentioned the heatsinks only get slightly warm to the touch. Sorbothane specs. list operating temps as -20F to 160F (-29C to 72C). Even my "space heater" Aragon 8008bb only gets to about 130F.
  
  Thanks,
  henrylr

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