I found sandstone to be better than granite - but tend to prefer rigid spiking directly to a stable floor anyway.
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I havent tried sandstone, and have been using marble lately, first, on a nice hardwood floor with small felt pads and some large floorstanding speakers spiked to them. THis was pretty good. Now I use the same slabs of marble on carpet with Tiptoes underneath for equipment. For the CD, I've got a CD Player-slab-innertube-slab-tiptoes-carpeted floor setup. The preamp gets the preamp-tiptoes with small rubber pads on the POINTED END-slab-tiptoes-carpeted floor treatment. THe amp is sitting on top of yet another marble slab, with tiptoes underneath. Overall sound is nice, but there is something to the idea that the shelf imparts something of itself to the component. I bet sandstone would sound rather inert when rapped. THe marble sounds anything but inert, ringing like a cross between glass and metal. I think that I will try maple butcher blocks next.
Mike, I enjoyed reading your thread and observations on speaker set-up. I have a similar speaker/floor situation. On a related topic, any recommendations for materials to use for stands for big SS mono-blocs over the same type of flooring? I haven't started yet, but was considering going with a heavy steel stand with corner posts mortar filled and tip-toes under the stand. For stand surface double thick 3/4 " MDF bolted to the steel frame. Don't mean to take over your thread Mike, but you guys seem a likely lot to have suggestions about this. Thanks. Craig
Garfish, well not actual experience with amps on flooring. i do have an identical or very similiar situation for my floor -sitting PLC and my triode amp. the amp is on a triangle (lead-filled) Lovan stand, sitting on top. there are (2) pices of 3cm granite under it with vibrapods between the stone. tip-tops seperate the bottom stone from the rack, points resting in dimples of rack. the amp footers have been replaced by a combo of b.d.r. "those things" (base-only) and vibrapods screwed into the amp, resting on "those things". i made sure to off-set the bases from the vibrapods between the granite so they ("those things/vibrapods) were not directly above the vibrapod (sandwich). the PLC has its footers replaced with vibrapods and another "vibrapod sandwich" between (2) pieces of 3cn granite. nice improveent, effectively creating another sub-floor for my equipment to rest. mike
Redkiwi- even New Zealand has to have cabinetmakers, you may call them "joiners". The local equivalent of maplem i.e, a straight grained hardwood between oak and cherry in hardness, (perhaps yew or stinkwood?) should be joined so that the top and bottom surface is endgrain. It's a simple matter to glue and clamp the boards together and then run them through a planer. Any cabinet shop could do this for a nominal cost over the price of the wood. Even tho I have a shop, when I make table tops, I take them to another's shop for planing and sanding because I don't have a large enough planer. It's common practice. Good luck.
I discussed the use of Maple for shelving with Pierre of Mapleshade and was told that gluelams are fine as long as the seams are vertical (visibal from the top or bottom of the shelf like butcherblock). Horizontal layered seams I was told ruin the sonic properties of the wood. Redkiwi, I also checked out USPS snail mail to NZ and 40 lbs (for example) can be mailed for under $50.00 US freight. The unfunny thing is that I have been trying to locate sheet maple in the Los Angeles area and even the lumber yards are not certain where to purchase it. My father and myself used to purchase hardwood at the local lumberyard in Iowa when I was a kid, I guess that this has all changed as the years have gone by and the wood has become scarce. I had the same problem 10 years ago when trying to locate small 2-3" peeler poles to connect larger peeler logs for a project. I was told that the poles were only available to manufacturers by the large mills in Northern CA. They were being used at that time for Southwestern furniture. Another thought that I had about you and your maple is what if you just used small blocks of it under your cones, Pods, etc., instead of a whole shelf? Kind of like maple feet or footers. Anyway, my parents are to be driving cross country for a visit around New Year, I will see if my father can locate some of the precious material in the Midwest before they leave, short of cutting down the tree in their backyard.
I've had all my equipment on a 6" sandstone slab that sits atop my raised fireplace hearth. (NO FIRES PLEASE)I've tried all the base materials and at this point just use BDR cones with no other material. I've selected power cords and the like that best utilize the inert material. I believe that our equipment will pick up on the resonance of the material it sits on. In the same vain that sand is used in racks and base/ isolation products, sandstone is as neutral as I've found. I believe I'm listening to the component and not the base. The two 3'-6" x 22" x 6" slabs I bought fron a stone supply yard for $80.00! Like I say I've tried alot of base materials on top of the sandstone, but I like the sound of just sand best. I've read alot about stone slowing the pace of the music/ equipment. That seams so illogical to me, but I know alot of people have had that problem. Redkiwi, If you can't find the maple, I'd be happy to send you what ever you want as long as you pay the cost. No mark-up required, just want to help. I've read you looking for it for some time now. It's a damn weed here in Minnesota!