Vibration Issues / Turntable Decisions

Here is my setup. As you can see the wall-self would look quite odd. I will try securing the cabinet to the back wall, good idea! The TD-150 does go nicely with the Decware equipment, I would like to keep it.

https://cdn.pbrd.co/images/GMBMhCy.png
Out of curiosity, would there be any benefit to moving to an MC cart or is a 2M Black going to be a great spot to hover around? The MMF 9.3 came with the Eroica LX MC, which was appealing, but of course that also implies a $500-1200 Step-Up Transformer pushing the total upgrade cost a bit up there.

hifiron,
What are those unusual speakers?They look really good.Good luck with your vibration issue.

@roxy54  Thanks! They are Decware HR-1 radials, absolutely amazing! I'll try some bracing this weekend and report back on my status.

@hifiron - A few of different approaches....

1. stiffen the floor - probbly the easiest and most effective

You mentioned the room is over a crawl space
- go under the floor and screw a few 2 x 6’s under the unit (overlapping it by a couple of joists
- simply place the 2 x 6 flat against the joist and put a couple of 3" screws into every joist it crosses
- you will be very surprised at how much difference it will make

2. Magnetic Isolation
https://www.youtube.com/watch?v=74F7odDKL4Y

3. There are a variety of Herbies isolation devices that might work
http://herbiesaudiolab.net/special.htm

4. Employ a cushion isolation device under the TT.

They can be purchased online
https://www.amazon.ca/Auralex-SubDude-II-Subwoofer-Acoustic-Isolation/dp/B00DI5AXNI/ref=pd_lpo_sbs_2...

OR are simple to DIY...
- Build a box similar in size to TT base about 1.5 inches high
- place a bicycle inner tube insude
- place a piece of MDF on the inner tube (cut to about 1/4" smaller than the inside dimension of the box
- place a piece of granite on top of the MDF

The granite will stabilize the TT
- the inner tube will absorb the vibration from the floor and will not move the granite
- Drawback: you have to pump it up now and again

You could probably use the Herbies Medicine Ball in place of the inner tube - no drawback!

You really need to address the root cause - buying a different TT or cartridge will not do the trick

Hope that helps

I agree with Willy, support the floor from underneath first . That is your problem. Stop the amount of deflection there . Except I would support it across the width just in front of where the equipment is and support that on either end right to ground . I’m betting when no one walks on the floor and your in your seat listening your happy with playback so it isn't your table and wall mounts are not always the ideal solution. If the floor has that much deflection and the wall isn't an outside wall without a door in it chances are with a floor that bouncy it will only reduce , not remove the problem completely.