Granite Slabs


I've seen a few systems here that used granite slabs under speakers. Where would one find these cut slabs to size and how thick would the granite need to be to support 225lb speaker? Looking for 2 pieces cut about 20x17x1-2", any help would be great.

TIA

sqitis

maple slabs under speakers
You must be a Canadian thinking about bacon 🥓 lol. 
 

hahahaha, I knew this would open a can of worms! Not Canadian, btw! Ok I'll stop with the stupid questions.....(-:

What are you trying to achieve? Townshend speaker supports is where you need to look if you want better sound. 

Just trying to figure out if I want to get my speakers off the carpet with spikes onto a platform of some sort. Not sure which is a better sound/solution.