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

Showing 7 responses by outlier

A Teres is probably a challenge to wall mount, and my suspicion is that such a mount is not recommended from a sonics perspective for an unsuspended turntable like the Teres. Hence, I'm keen to work on another solution, if one is available. Are others experiencing such an issue (especially with this MG-1 arm)? Note, I am now careful about walking around, and so the cartridge is not jumping, but if I have guests over, I'd like to spin some records and not have to warn them to tip toe around ;-) Thanks!
John.
Twl, as always, thanks for the words of wisdom. Yes, I do need to play with it more, and see if I can iron out any remaining kinks. I have tracking set at 2grams which is recommended for the cartridge, but I can up that a little.

Yes, I've been weary of adding anything to the base support. Even as is, I've been weary of using the Adona stand in the context of supporting the Teres, but it looks great, sounds great and has freed up a lot of real estate for me. I've had so many recent system changes on the analog side though, it's difficult for me to attribute gains and issues..I'll keep at it. This MG-1 arm really is interesting, and has been fun to work with - a bit challenging to set up, but that's part of the fun :-)

Thanks,
John.
Guys, thanks for all the input so far. Well, thing is, I'm renting this house right now, so am weary of following any serious DIY type solutions (ceiling mount, or wall mount). I'm also weary of checking out other stands, as I've alreay invested heavily in this one and it really is a beauty (will need to post photos soon - camera is not on hand just now). I guess I could revert to the concrete blocks I once used, and place them in/under the rack (just move one of the rack platforms to the other side of this double rack, and realign) - that might work - could keep all the equipment together (not take up fresh real estate, and maybe eliminate the jumping issue, and the tt would be lower, which is a good thing). Still, I may lose some of the stand benefits I'm getting - if there are such benefits (still not sure just how effective the Adona rack is - but I'm bad at judging such things). Also, the tt looks great perched up there next to my Supratek preamp - both of them showcasing all their wood :-)

Just to metnion, the whole rack is placed upon a brick floor/patio, but I'm not sure where the joists are under all that. Also, I've really no wiggle room to place the rack elsewhere - it really needs to sit just where it is, because I've a projector screen which comes down right next to it - if the rack is an inch away from the side wall, it begins to encroach upon the projector screen

Well, I'll try a few things and keep you posted. Thanks again guys for all the good advice.
Guys - just so you know - I'm not jumping around the room or walking close to the turntable as I'm listening ;-) However, it is necessary to walk towards the turntable to change records, and walk back to listening position. Also, I do have friends, roommates and guests about now and again, so the issue is not completely in my hands. Hence, that's why I'm still keen to eliminate the issue. I think I can put together a concrete block solution - and will try that. Pity though - as the turntabe is so easily accessable on top of the rack, and looks great. Mmm, still the sound and concerns about cartridge outweigh the aesthetics and convenience factor, for me anyway. I'll keep you posted and will get photos up soon (camera still out of action just now - another story ;-) Thanks for advice on this one..
Hi Guys:
Thanks for the extra input. All good thoughts. I'll do a little more experimenting over the weekend and see can I dial in settings, levelling and support a bit more. Also, because this is a double stand (supported on six cones), I may try supporting it on just four cones (eliminating the center ones). I called Adona and received this tip - which sounds like a good one. That should make the effective weight at each of the four supports 50% heavier on average, if my reasoning is correct.

Also, Ada, thanks for the good instructions on optimizing the setup. I believe I have the leveling jsut right, althoguh I haven't applied the methodology you suggest above, which should provide me with better accuracy.

Also, for folks who've suggested adding more mass to the stand, the stand itself weights 230lb, which is pretty beefy in my books as is ;-) The platforms of the rack are granite with some type of substane underneath - looks like some concoction of MDF and tar or something? Anyway, supposed to proved close to flat frequency response.

Anyway, will keep you posted. So many of the above commets are invaluable. Thanks guys.
Just updating with a photo of my setup (the subject of all the above advice - thanks again!):

http://cgim.audiogon.com/i/vs/i/f/1112383700.jpg

You can also review my virtual system for more photos.

Thanks,
John.
Hi Folks:
Just to update, I resolved the skipping issue by moving the turntable to the floor. I think the key problem is/was that the room is one floor up (there's a basement underneath). Hence, the floor is likely not as stable as a typical floor, providing vibration level most folks would not encounter for their setup - a vibration level that no stand can effectively deal with. Also, this tonearm I'm using really must be more sensitive than a typical bearing-based arm, because my OL Silver simply showed no skipping behavior whatsoever. I think the stand would perform admirably in typical circumstances, but my setup is a bit of an 'outlier' ;-) Generally, this stand works perfectly for my other equipment, and if/when I move house I'm confident that the turntable will be back on top of the stand, sounding great and with no skipping behavior.