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Any good recommendation as to where to purchase sorbothane feet/balls for vibration control. Speakers and AV gear? Links will be helpful, thanks!
Err why? you live onna Trampoline and use Vinyl?
Persoonally , I Can't think of any other reason :-)
Go to www.mcmaster.com search on "bumper guards". The soft hemispheres are the same durometer hardness as the isonodes.
Norsorex (polynorbornene) is a dense, closed-cell foam that absorbs vibration exceedingly well.
It can be found in a variety of products, but more commonly available to us audiophiles as "Unhappy" or "Sad" balls from science experiment kits. They are called that because unlike Neoprene "super balls," Norsorex balls don't bounce.
Cut in half, Norsorex balls they make very effective vibration dampers. I've often thought a platform were made of a sandwich of Norsorex and aluminum sheet (a la Symposium's Svelte Shelf) would be amazing. Hmm... Just may try this!
See the link below for a kit from Edmund Scientific. Google "norsorex" or "polynorbornene" to find other forms.
Educational Innovations (aka TeacherSource) sells the large ones for $6.95/pr. Look for their #SS-3, "Choositz Decision Balls." I've had good luck with these but have to say that my preliminary experiments with Herbie's Tenderfeet and Baby Booties have been quite promising. Just got 'em yesterday, though.
Specifically, the baby booties for my Wright tube phono preamp. I saw Steve's comments about Norsorex in his FAQ and that got me looking.
IME, his HAL-Os and turntable mats are, well, way excellent.
The funny thing is that I've had rather negative luck with Herbie's stuff so far -- liked the turntable mat at first, bought another one (thicker) after the first one started to dissatisfy, and now have both of them parked in my closet (back to the Boston Audio Mat 1). And the pair of HALO-S I bought for my 845s just dulled the sound, I thought, though a fellow user of exactly the same amps like their effect just fine and is happily using mine.
I have the Baby Booties under an overachieving cheap SACD player (Sony DVP NS500V), which is too light for the dead balls unless I weight the top of it a LOT, and this sounds like a synergistic combo so far. The Tenderfeet will go under either another SACD player or my linestage, not sure which. Still pondering where to put the second quartet of Baby Booties. And I'm doing some simultaneous cable stuff, so Lord only knows what benefitis I can ultimately attribute to what tweaks :-)
Like most tweaks, it depends, eh?
It is tough to determine what tweaks do when a lot is being changed around.
Didn't like them on my power tubes at all , liked them on my driver tubes a lot .
Glad I'm not hearing things, then. (Or not not hearing them. Whatever.) The experiment with 845 outputs was my sole HAL-O experience, though I've used other tube dampers.
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