Isolation vs. Absorbtion

Thanks. I also have a Theta Data III. The cabinet is quite susceptible to air induced vibration at mid bass frequencies. I have mine on a Zoethicus stand which sits on an oak plank base seperated from the floor by air bladders. On the stand the Data III currently sits on a lead shot tray and is mass loaded across the entire top (except the vents) with a thin bag of lead shot. I like the sound and by lightly touching the cabinet before and after it is quite clear that the cabinet vibrations are gone, However, I'm always looking for what might be a better alternative.

Dekay, or anyone, can you offer any comparison between the Mapleshade and BDRacing cones that you used? I'm looking for a cone... for a different application -- between a Rega Planar 3 and a sandbox... but any comparative info still would be interesting. BTW, at first I was disappointed in the Mapleshade Surefeet -- got new detail and better defined bass but also some aggressive highs and too-light bass. Then I discovered the cones weren't perfectly flat on top; they had a tiny nub dead center that prevented uniform contact. To bypass the nub, I got some tiny brass cap nuts (dome shaped) and stuck them on the flat top with double-sided tape, thus creating a poor-man's version of Mapleshade's triple-point cone. Now, I am favorably impressed with the Surefeet (tried under turntable and CD player). I will exchange this set for a good set and may try a set of the heavyweight triplepoints as well, but the capnuts may still figure into the mix.

Wow... As a reatively new "audiophile", I am impressed. I think I am beginning to see why some people spend a lifetime "tweaking".

Darn it Jayboard, now I am going to have to pull the Mapleshade cones and check their level. When I tried the Racing cones between my player and an MDF platform resting on Vibrapods I found the sound to be kind of "etched" for lack of a better word. However, since then I have discovered that they make different models and wonder if I may have used the wrong one for my application. I borrowed a set of three for the test but am not certain what number they were and have not yet asked the friend that loaned them to me. I have heard good things about them from others and would like to give them a second try (the other model) before dismissing them. I happen to have some brass finish nuts (the ones used to affix glass ceiling light fixtures) oddly enough. LOL. If you get a chance try the Mapleshade cones under one of your speakers. I just messed around with my wiring and wall outlets and am taking a break from tweaking until the sound settles down.

Plsl, after playing some more and reading what arrangement sounds good to you, I reckon you should try some Maple Butchers Block.