Coda II said:
As Markus posts here as well this comment of his will give you a flavour:
'At the risk of repeating myself, granite is crap for audio use. Slate is much better but also much more expensive.'
Thanks for the URL, interesting comments on the use of granite but it's all quite subjective really! Stating granite is crap for audio use is vague to say the least, what exactly were the effects? What type of granite was used? What are the test results in using granite under loudspeakers in comparison to using it for equipment supports?
I did read that there were bass and treble issues and that one thread stated that the life was sucked out of the music by using granite ubder their speakers. How does this compare to using it for shelving, especially if used with secondary isolation products?
Also, if granite is so 'crap' (technical term

), why is KR Audio building a brand new set of loudpseakers out of granite? Why is the new Opus 3 Continuo turntable manufactured out of granite?
Questions, questions!!!!
If you have any working knowledge of stone you will know that there are numerous types of granite on the market which vary greatly. I think that unless anyone has tested all types of granite available using a blanket statement indicating that granite is 'crap', might be a little short-sighted.
But, it is good to get your feedback and I would like to know which type of granite you used and where it was purchased from. I will also talk with an old contact of mine who has performed considerable tests and experiments on metaillic and natural raw materials with a view to having a short-list of materials that make good equipment supports.