I have found the Herbies gliders to allow easy movement and to be better sonically than spiking my stands directly to the floor. I have 70lb. speaker stands with bookshelf speakers blue tacked to the stand, so the weight is similar to what you are dealing with. The stands have spikes on them that rest in the cup of the Herbies Gliders. I can easily slide the speakers around as needed. They are reasonably affordable, so they would be worth a try. My guess is they would be better sonically than anything with wheels. But I'd try both and do a comparison. Good luck!
How do you feel about a wheeled dolly permanently under large floorstanding speakers?
I'm building a new room that will be home to the system I'm putting together. I looking at several floor standing speakers that aren't huge by audiophile standards, but too heavy to just grab and move easily, 60-80 lbs each. The room will be multi-use, so one option I'm considering is to move the speakers when required. They would stay in the best position for my solo listening chair, but when we have a group over and are using the game table or pool table, move them toward the wall and turn them for good sound to the overall room. It would also help me a great deal with the WAF for the room. I've been considering the wisdom of putting them on a solid MDF platform, the size of the speaker footprint, with 3 or 4 castors mounted beneath. Probably make a wood skirt to hide the wheels. Then I could roll them off the rug onto the vinyl floor and over to the wall or wherever makes the most sense. I will keep the movement relatively small so I can keep speaker cables only as long as necessary to reach the primary listening position. Do any of you have direct experience with a similar setup and its impact on sound quality?