you can get the optional B&W spikes for free, just ask your dealer for them. They are the nices spikes I've seen. The casters unscrew and are replaced by the spikes.
Best way to spike Nautilus 802's
Ok all you Nautilus 802 owners out there I would like to know how you spiked your speakers to the floor. My 802’s are sitting on top of thick carpeting/padding on a concrete slab. The 802's come from the factory with rollers. I know there is a Sound Anchor stand available for the 802N, but thought I would check here first before I consider buying dedicated stands. Any advise from 802 owners who have spiked their speakers would be greatly appreciated. Cheers, Dan