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Equipment Set-up Recommendations?

Hi Folks:
I recently installed an air-bearing linear tracking tonearm (the MG-1). Table and cartridge are Teres 255 and ZYX Airy 3x-sb low output. Generally, I'm thrilled with the setup, but I find that when I walk around the room, the cartridge can jump, which is very disconcerting.

When I switch to the OL Silver arm I have, such jumping does not seem to occur, so I'm guessing the MG-1 is more sensitive. All my equipment is supported with the double rack, which may also be a variable to consider - I have my Teres on top - about 40 inches above the ground.

Anyway, I'd welcome any input or insight that migth provide me with a more stable, isolated listening environment where my cartridge won't jump (how bad is that for the cartridge anyway - should that be considered an emergency, or is it pretty common/not-a-big-deal? I've inquired about getting a Gingko platform, which may or may not help. Ideally, I'd like to keep the Teres on top of the rack, as it looks great, is highly accessible, and I don't want to take up more realestate with a seperate Teres stand, if I don't have to.

Anyway, any input and advice would be much appreciated. Thanks in advance!

John.
outlier
jayboard
301 posts
 
Yikes, mon, you're so keen on your nice TT on top of your sharp-looking rack, and you're going to try a concrete block solution? Whoa, keep your head! ;-> I don't want to push Neuance too hard, but given what you'd like to preserve, you might ask Ken Lyons if he thinks his Neuance would help your situation; he is not hype-ful. Save the concrete for if you really have to get serious.
gregadd
574 posts
 
Outlier- concrete blocks? Not sure they are heavy enough. You can try it. You can usually scavenge some bricks from leftovers at construction sites. They look better too. If you have space you can add mass to the rack. This is what most people do without even realizng it. You can use bags of lead shot. Cast iron weight plates are also useful. You know the ones weight lifters use on the end of a barbell. Smaller ones can be placed over the tansformers of your equipment to suck up stray magnetic fields.
kleech
130 posts
 
I had the footfall problem with a non-suspended table in a livingroom system. Placing the table on a Symposium Ultra Platform which in turn was placed on Navcom pucks on the rack completely eliminated the problem without coloring the sound.
larryi
4,352 posts
 
Your Symposium and Navcom solution should be a quite effective, albeit expensive, solution. Both have different compliances and would be attenuating different frequencies of vibration quite effectively.

I find the use of Symposium platforms, shelves, roller bearings, etc. extremely effective at dissipating unwanted vibrations. Great stuff.
tbg
5,263 posts
 
Outlier, I almost forgot to add one experience I had. I have Mana stands, level 2, under my tt. I was having footfall problems. Lloyd Walker suggested a brace to the wall from well up on the rack. His argument was that the rack does not go up and down as the floor is anchored at the wall; rather it flexs up and down only in the middle but sways the rack fore and aft near the walls. At any rate, the brace worked. This is an effective solution only if it passes WAF, of course.
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