Floor spikes for speakers?

Depending on your age it may be counter intuitive to think that putting your speakers on springs is better than spikes, but it is. I bought Townshend Podiums for my Wilson Sasha 2 years ago and they were remarkable. (I am on travertine marble over concrete) Two years ago I had custom shaped Townsends made for my Rockport Cygnus, which also made significant improvments. I can't emphsize enough the worth of paying the extra bit to have custom bases made. Instead of having your speakers perched on obvious rectangular aftermarket bases, the customs look factory. In the case of the Cygnus with old school non-outrigger footers it made them look very current. Interestingly when I sold both of these speakers the buyer insisted that the Townshend bases be part of the deal. This solves a sometimes nagging part of adding aftermarket gear to components. 

Everyone will have their own opinion on this subject and experimentation is your friend. While I’ve not tried the Townsends with my Salon 2s I can say going from “resting on carpet” to “spikes through carpet to concrete” made an unequivocal improvement in the sound produced by these speakers. Bass is tighter and imaging is cleaner. Anything other than concrete will send vibrations back to the enclosure thus strengthening the case for decoupling.

I'm convinced (after a lot of research) that decoupling is the way. Vibrations sent into the floor come back up. That's my simplistic version of what I've gathered.

Townshend podiums have been game-changing for me, but if they're too pricey (and they will really work with you on price), something else, at least.

Save your money and put them on low rise plant stands with wheels so you can clean around them.

My listening room is carpet over concrete and Townshend Podiums made a very noticeable improvement in imaging and detail.  Was actually shocked at the level of improvement.  They are not cheap, but I consider them to be one of the best values for the benefit.  Another benefit of the podiums is they do not raise the tweeter height significantly compared to many of the other quality isolation alternatives.