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Tuntable not working with wood floors..Help

Moved into a new (old) house, with wood floors and it is giving me a huge headache. I have my AR Turntable sitting on top of my rack, and it is absolutely unplayable. You can not even tip toe through the room with out the needle bouncing out of control. I placed a bike tube and a piece of glass underneath it, and it helped, but its still not playable. Here's what I need to know. 1) Would a new table help? The AR is set up so the platter and the arm float on the same suspension (which appears to be very loose), would a TT with a different design help/solve my problem. 2) If not the table, what can I do to get this thing to work? I am in college so $ is very slim (I am talking Ramen and Keystone slim). I don't think my landlord would be happy about mounting it on the wall, but I may take that chance if it comes to it. All advise is much appreciated!
azavguys
s7horton
1,077 posts
 
Moving the turntable to a corner is a great, cost effective idea. I don't think that mounting it on the wall will help. I don't it's the floor, more like what is supporting the floor that is causing the flexing. If the floor is flexing, there is a good chance that the wall moves with the floor.

If you can get to the basement and look at the floor joists, you may be able to add a couple to the already existing to stiffen the floor. 2 floor joists should be relatively inexpensive. You may find your solution by placing the table in a more structurally sound location in the room if one exists.
sinisterporpoise68
63 posts
 
I had the same problem with my Dual a few years ago. I found that using a table that is wider than it is tall really helps (I used an endtable from my living room). That solved about 85 percent of the problem. When I went to an unsuspended table, the problem was solved completely.
chriskeating
189 posts
 
YOu might check to see which way the floor joists run. If they are running towards your equipment, this exacerbates the problem by transmitting footfalls right to the rack. If this is the way your floor joists run, you can try moving the rack to a different part of the room. This would of course only work if yor wires were lengthy enough.
ozzy62's avatar
ozzy62
3,151 posts
 
A turntable in a corner is NOT a great idea. It's not even a mediocre idea. You don't want to put such a device where standing bass waves tend to migrate. This is a recipe for.., well you know the story...

What you need is here:

http://www.machinadynamica.com/machina25.htm

I used this on the highly sprung floor of my old house with my Spacedeck. NO floorborne vibrations WHATSOEVER when your table sits on this thing. I recently moved into a house with a slab floor (see system pics) and I thought I would no longer need this device. Wrong. It still improves the sonics when footfalls aren't even an issue.

Oz
inpepinnovations1e75
395 posts
 
Hanging from the ceiling is not only a cost effective solution to your problem, but also a superb isolating technique. The only vibrations that get feed back into the turntable are airborne, but they do not couple very well with self/turntable unit. I use picture hanger wires with turnbuckles at three corners, which really helps in the levelling process. The wires barely show, giving my Alex III and masonite shelf an errie self-suspended appearance.

Bob P.
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