Various Bearing Isolation Devices

I won't pretend to be and expert, but I've listened a lot to equipment placed on the Symposium bases and rollerblocks. My experience gives me these general impressions: (i) The Symposium Rollerblocks to good things with solid state equipment - sharpen focus, quiet the background; (ii) Be careful with them under tube equipment - to my ears they "sharpen" too much and tend to cause the sound to have an upward tilt (I think tube equipment does better with soft feet); (iii) The bases are good, make some difference - mainly in detail, but I'm not sure they are better than other price equivalent bases made by others; (iv) I haven't perceived any particular synergy between the bases and the rollerblocks; the latter clearly make a more dramatic difference (+ or -) and pretty much do so on anything. I'm also curious about the Aurios(so?) devices, but haven't heard them. I'll be following this thread to see what others have to say.

I see a lot of typos in my previous remarks. Actually, I'm not quite as stupid as my comments may make me appear.

the Aerios (sp?) are supposed to outstanding at $299 per set. They have reviews on stereotimes.com and Sir John at soundstage.com commented on them. The company is in Tempe AZ and will sell them to you and allow you to return any or all of them w/i 30 days.

Honoluluan, for what it is worth, I was so amazed at the similarity of your response to my own experience, that I failed to notice the errors. Have you tried the Iso Bearings? They are soft like Mod Squad and other "soft" feet, but share the bearing principal with the Rollerblock.

Part one of my upgrade is complete, my Target VR5 rack now has Symposium Shelf platform under CD palyer. Shelf is same 18 X 14 as existing shelf, which are vinyl wrapped composite. After inserting Symposium 1.25 thick multilayer shelf I used included metal blocks to couple CD player to polished aluminum shelf surface, thus draining rotational vibrations from CD player. Sound is now firmer, more powerful, with more air and seperation. Instead of metal mounting blocks you can use metal or composite cones to couple CD player to shelf, I have some polycrystal standard cones I will try. I am waiting for my rollerblocks, but factory is back ordered a couple weeks, can't make them fast enough. I decided to go this route because Symposium system is much more elegant than Bright Star mass loading/air bladder concept, of course there are other air platform/bases at various higher prices......Townshend, Vibrapalne, Aricci Suspense etc. but Symposium is affordable and you can go one step at a time......will let you know how roller blocks work, regards Sam