Using Granite under speakers

I came up with this tweak & have been using this tweak for many years.
Probably the best $500 tweak I could ever imagine.
I have 2 Adona 24" X 24" granite with mdf platforms that I used with Sonus Faber Stradavari's with great success.
I used the spikes with disc's that came with the speakers on the granite platforms.
http://www.paladinltd.net/System91906.jpg
#1 - It made positioning (moving) the speakers a very simple task. Once the spikes & disc's were set up on the granite platforms - toe in, toe out, a tad closer to the rear wall, side wall became a snap & now a one man job.
#2 - It allowed me to position the speakers 2' closer to the rear wall - which in my case opened up the soundstage big time.
#3 - The speakers (graphite) looked great atop the granite platforms & a perfect match for my 2 Adona racks.
*I did have to adjust/raise the rear spikes about 1" so the tweeter position was ear level.
**Do not use spikes under the granite platforms as it will kill #1 & place the tweeter even higher.

Granite works well in some cases but not always . Sandstone is the best , three inch thick and as wide and long as possible . I've used MDF filled with sand and lead too . Coupling a speaker to a wood floor that is not really solid with spikes can activate the floor , great for movies but not for music .

I have a much better idea that's works far better. I have gone down this road you are on and this next option works far better.

Get some Star Sound Sistrum platforms under your speakers and you will be amazed at the results. They come up used and work wonderfully.

The granite thing may look cool but the results are not as good. Sistrum improves focus, detail, separation of instruments, cures muddy bass lines, and let's the music flow out with improved clarity and fidelity.

They would be ideal under your speakers. I think the smaller 03 or 04's would fit. The larger SP1's may also work. Just look up the dimensions.

The granite did tighten up the bass, but did not do the other things mentioned above as well.

I have the same room conditions. I've used granite under my box speakers for 10+ years. The bass is much tighter. I tried Sound Anchor stands with my B&W 801 a few years ago and the granite performs better. I gotta get off my duff and sell them stands.

SYMPOSIUM SVELTE is much better natural,great bass, wide stage etc. Granite sounds like a rock very bad.HELLO!!