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Help in isolating a TT with spring suspension.

Hello,

I recently got an old Pioneer PL-10 TT at an estate sale. After cleaning it up and getting a new headshell and belt for it, it looks and sounds to be in NM condition.

It sounds great as long as you just sit there, but as soon as you start walking around, even softly with no shoes, etc., it causes the tonearm to skip around a bit. I replaced the rubber feet the springs rested on and leveled it, but it still vibrates when you walk.

Are these types of TT's normally this sensitive? I find this unacceptable. I'd like to keep this TT if I can eliminate this problem. It's original rubber feet are pretty hard and chintzy. Would getting some kind of cone feet help? It is resting on a vertical rack which isn't exactly audiophile quality, but isn't light weight junk either.

Any suggestions would be greatly appreciated, but please make them somewhat reasonable (no $900 Harmonix feet)!
128x128chris_383
nsgarch's avatar
nsgarch
2,524 posts
 
It's not about what you put under it, but about what you put it on ;-) And even if your "rack" is reasonably sturdy, the floor structure under the rack is probably what's bouncing (it's not a concrete slab is it!)

I bet even an un-sprung TT would have trouble in that situation, and what you're going to need is a wall shelf for the TT. Target's shelf ($179 at AudioAdvisor) is probably the most popular, and you can see it here http://www.audioadvisor.com/products.asp?dept=214

IMO, even the best TT stand sitting on a concrete slab can't beat a PROPERLY MOUNTED wall shelf.
chris_383's avatar
chris_383 OP
15 posts
 
It's not about what you put under it, but about what you put it on ;-) And even if your "rack" is reasonably sturdy, the floor structure under the rack is probably what's bouncing (it's not a concrete slab is it!)
Yes, I have an old house and my floors are not that good, but I've had other TT's that were not nearly this bad.

A wall mounted rack would be nice but it wouldn't work with the way my room is set up, and I really don't have the room for it. Speaking of concrete slabs, would putting a heavy flat piece of slate or stone of some kind help?

Thanks for the info.
chris_383's avatar
chris_383 OP
15 posts
 
It's not about what you put under it, but about what you put it on ;-) And even if your "rack" is reasonably sturdy, the floor structure under the rack is probably what's bouncing (it's not a concrete slab is it!)
Yes, I have an old house and my floors are not that good, but I've had other TT's that were not nearly this bad.

A wall mounted rack would be nice but I don't think it would work with the way my room is set up. Speaking of concrete slabs, would putting a heavy flat piece of slate or stone of some kind help?

Thanks for the info.
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