Spikes or Feet

sorry, I meant cones under the componenets. Same idea: Coupling. Use quality cones and speaker spikes/cones. I do not use Zu's spikes. The cones/spikes, alone on my Defs cost me $400, but we're well worth it. They are going on my new Defs, unless the threads were changed. I mention Starsound Technology, only because I've been using their coupling stands and Audiopoints for years. Pricey, but but they deliver the goods. Talk to Robert. He'll give you an education about this whole thing. I'm not a dealer, just a plain ole fan..

I use spikes on everthing.
But, I am using Herbies gliders made for spikes. Even with my Speakers weighing 215 pounds each I am still able to move them with the spikes on and on carpet.

Black Raviolis

Ozzy, I'd spike those babies, with serious speaker cones, to go right through the rug into your floor. You will hear the difference. If those points don't touch the floor, you're not coupled. What's the point then?

Herbie's Gliders under brass spikes for speakers and equipment racks have made a signigifant improvements in both my HT system and my main audio rig and best any other combination I've tried. Herbie's products have a 90 day return policy so they're a no-brainer to try.
My only connection with Herbies is as a satisfied customer.