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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.
128x128outlier
ozzy62's avatar
ozzy62
633 posts
 
Low frequencies tend to collect in corners. A turntable mounted directly in a corner is subjected to mucho airborne vibrations. Not, as you already know, a good thing for analog playback.

Oz
larryi
1,972 posts
 
You could try putting something designed to "absorb" mechanical energy (convert motion into heat) under the table, such as a Nuance or Symposium shelf. If the floor vibration from walking is a very sharp impulse, but not a very large up and down vertical movement, a shelf might attenuate the impulse enough to prevent the skipping.

Good luck.
gregadd
574 posts
 
Oz that is true if the turntable is is put in a corner in the direct line of the loudspeakers. I guess it was not clear, I suggested a different room. Mine is located around the corner behind the speakers.I guess that causes problems too. Like long cable runs and makes adjusting vta even more of bitch. I guess that's why this hobby is so much fun.
ozzy62's avatar
ozzy62
633 posts
 
Sorry, Gregadd. I didn't catch the part about placing the table in another room. My bad.

Oz
tbg
5,263 posts
 
You would not have the problem were you on a concrete floor. The walls and the ceiling also vibrate. Putting the tt in another room might help as well, if it is more free of vibrations. Putting great mass under it might help as well. A 700 pound curb stone would be unlikely to move easily. I don't like air or magnetic suspensions because of their slow sound, but they might help you.
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