Thiel 3.6 and 'grounding' / insulating


I have a lovely old house with hardwood floors. I just bought a pair of Thiel 3.6. I plan to use the stabilizing pins / spikes provided with the speakers (probably put the spikes on quarters or something). My question: would it be worth my while buying a pair of thick (2 inches or so) granite slabs to put under the speakers with the spikes? Has anyone tried this and if so, what were the results? Thanks.
pvanosta
Pvanosta, I've had 3.6's for about 3 years now and find Goertz MI2's to be a nice match, Thiel does also. These cables give a more fleshed out, full bodied presentation in my setup. Also these speakers respond to every inch you move them which can be maddning. I currently have mine 9 feet apart and about 4 feet from the front wall and 3 to 4 from the side wall - which allows me to point them straight out with no toe in. This gives me a very wide seemless soundstage - the speakers also sound more open, less boxey when placed further apart - but YMMV
My Amp is a Classe DR 15, 175W/ch in 8 ohms, and doubling all the way down to two ohms (700W/ch in 2 ohms).
The preamp is the Adcom GFP750 in passive mode.
The pre - to - power cable is Transparent Audio, balanced. The cable to the speaker is heavy-gauge multi-strand solid-core Audioquest.

Thanks for the placement feedback. I'll play around with the distance between the speakers...
Thank you. That makes two votes for the 'farther apart' side. I will definitely play around with that (as far as possible in my listening room).

Patrick
OK, I can see why you didn't suspect the amp...
I did own an older Classe once (a Seventy, not the same generation or as high-power as yours) that never sounded properly balanced until I put a Synergistic AC cord on it, but that really transformed it, made it much more smooth and open. If you can, do you use an upgraded AC cord?