My thoughts on TT isolation methods.

@townsend-audio, I'm afraid that would be difficult to do. I do not even have 1/4" worth of room. If you look at my system page you will understand. As for the subwoofers, I have four of them and each one weighs almost $250 lb. That is a lot of jing for an experiment. 

As I detailed in my long turntable isolation shelf construction thread:


I tried tons of materials, pucks, sorbothane, woods, you name it, including Townsend Seismic Pods, to see which would produce the most isolation from exterior mechanical vibrations. I used seismometer apps to measure and record vibrations. Nothing else came even close to the objectively observable effect of the Townsend spring based pods, placed underneath the turntable shelf. Stomping on the floor without the pods, I could feel with my hand and measure large ringing spikes of vibration on the shelf. Once the pods were put under the shelf, I could stomp the floor (sprung wood floors) and feel nothing with my hand on the shelf, and measure almost no vibrations getting through!


I have no idea if this in fact contributed anything to the sound quality of my set up (my turntable is in a different room than the listening room).But it sure is useful insofar as I have a son who walks around like Godzilla, and who used to skip my records just passing by my turntable (doesn’t happen any more).

I actually, for the heck of it, ended up throwing a bunch of materials together since I had them. So my Transrotor turntable sits on a 2 1/2" thick maple block, then a sheet of 1/4" steel below that, then two layers of MDF, different thicknesses, bonded together by wall-sound-damping material, and then all that held upon the Townsend pods.

Prof2
         I myself have worked extensively with Layered Materials to build up a Isolation.

In My Experience:
Does it improve the SQ ? yes it does.

The Improvement in the SQ will be heard in the earlier version of the applied methods.
Especially when the Isolation Footers were used, and made their impression.
The Follow Up additions of Materials will be more Slight in how they will deliver a perceived improvement.
The Follow Up additions will be more about a continued approach to attenuate the presentation to match your unique preference to the SQ.

I can exchange one material in my Configuration of Layers and hear a change, I can easily revert to a Bloated Bass and subdued Midrange,
by one or two Material Exchanges.

I am today at a place where the choice of Platter Mat Material will be the  item that will have a effect on the SQ, and let me attenuate for a preferred presentation.
Hence I like a slightly Bloated Bass for when I play Blues and Rock, it just suits my ear this way.
I like a Transparent Presentation, with a Clean Bass Note and Projected Mids for Jazz, Folk and Female Voices.
This now available with a Platter Mat Exchange.

When it comes to the Footer that has most impressed me to date,
I am now Wedded to the Solid Tech 'Feet of Silence', to be the footer that is in direct contact with the TT's Plinth.