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Sorbothane record weight?

I have an older b&o rx2 turntable that I am not comfortable putting much weight on, the spindle will probably not work with a clamp, and the tone arm is not adjustable so I am not interested in adding a mat.  It occurred to me that maybe a "puck" that doesn't weigh much could be made out of layers of sorbothane sheets and used as a low mass "weight" to damp record vibrations.  I have googled and searched forums and haven't found any hint that anyone has tried this. 

Is this a really bad idea for some reason I cannot think of?  I am certainly no expert.

Steve
sryeager
mijostyn's avatar
mijostyn
8,199 posts
 
Assuming your records are flat just a puck of any weight is pretty worthless. The rim still can vibrate just as much. You have to use either vacuum or a system like SME, Kuzma and Michell Engineering.  https://www.youtube.com/watch?v=_viQuSUmEXY
The Michell clamp is very light and works great. You can buy one online.
Using these versions of the same idea flexes the record into the mat and the rim no longer vibrates. It will also flex out small warps, a puck will not.
millercarbon's avatar
millercarbon
12,531 posts
 
Hey Mike, check out my system https://systems.audiogon.com/systems/8367 Check out the turntable. Check out the clamp. DIY clamp btw. DIY clamping system. Look real close at the platter. See that little black washer around the spindle? Its just thick enough to hold the center of the record very slightly higher than the platter. The clamp is dished out. So when the clamp is tightened it pushes the record down onto the platter outer edge first.

Even somewhat warped records lay completely flat. The record is so tight and secure on the platter that when I get done with a side and remove the clamp the record sometimes sticks a second or two and then pops up. Why? Clearly the atmospheric pressure was holding it down. Yeah. I know. Miller built a freaking vacuum hold down without the freaking vacuum. Pretty amazing. Even for me.
chakster's avatar
chakster
6,144 posts
 
A few record weight i've been using long time ago are on this image. 
The one on my SP-10mkII is a German Made for 30 Euro, the grey one on the left side designed not only for LP, but also for 45s (also nice and cheap). They are lightweight under 300g each. 

If you want the original look for Orsonic clamp that you can lock to your spindle. 


millercarbon's avatar
millercarbon
12,531 posts
 
That Orosonic the collet style and will work on a smooth spindle.
uberwaltz's avatar
uberwaltz
13,381 posts
 
Both Mitchell and Record Doctor make very simple and successful record clamps that really do push down and help flatten the edge.
Nothing new really however that's not really what the OP was asking.
But I have found that the Mitchell clamp requires more of a spindle standing proud of the album than the Record Doctor one does so at just $29.95 from Audio Advisor it might be worth a trial.
Also handily happens to weigh 350g....
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