Right @fsonicsmith, the Symposium Segue (and Super Segue) don’t include a set of the Rollerblocks; the consumer must buy them separately and put them in place between table and Segue, or under a no-spring (presumably) Symposium platform.
My situation and needs are different, as my VPI Aries 1 has a separate motor pod, my HW-19 has a separate SAMA, and my Townshend Rock has it’s motor bolted onto that table’s Plaster-Of-Paris-filled "upside-down baking pan" plinth, which is very vibration resistant and non-resonant. My interest is in a support platform that is as stiff and non-resonant as possible, something I would think every turntable will benefit from.
At the hardwood shop I visited today, I checked out all the various thicknesses and number-of-plies plywood they stock. Remember the base Art Dudley made for his TD-124, which he wrote about and pictured in his Stereophile column a few years back? He chose Baltic Birch ply as his material, and the stuff is incredible! An 18mm thick sheet (just shy of 3/4") is 13-ply (the 1" version is 18-ply), each alternating ply grain-orientated 180 degrees to it’s two neighbors, with layers of glue joining all plies. The plies are void-free, and the resulting structure is extremely stiff and fairly non-resonant, the resonant frequency being relatively high, which is of course desirable, especially for a turntable (as well as CD players and tube electronics). With constrained-layer damping employed, it will be VERY non-resonant. I’ve done it with ASC WallDamp, which works great in this application (not to mention it’s intended use---between two layers of sheet rock in wall construction. Audiogon member folkfreak’s room was as so constructed, and his room is amazingly "quiet" (the walls are silent. You don’t realize how noisy walls are until you hear a room built using WallDamp.).
Baltic (Russian) Birch is available in both 5’ x 5’ and 4’ x 8’ sheets, and the 18mm thickness is priced at under $100 for either. A 4’ x 8’ sheet can be cut into twelve 24" by 16" pieces; twelve Baltic Birch shelves for less than the price of one 3" thick 22" x 16" maple block! Put two together with constrained-layer damping between them, and you have six shelves far superior in stiffness and non-resonance to a 3" thick maple block. I myself don’t want my shelves to have the sound or tonality of maple, I want them to have no sound at all. And that’s achievable!
By the way, the shop also had what is called maple (or walnut, and many other woods) ply, but all that is maple about that plywood are the two outer/surface layers, for looks. I actually like the look of birch; it’s modern in a Scandinavian/German kinda way.
