I've been using a pair of Tannoy 637 floorstanders for the last few years . They're currently on some spikes . The problem is that I have laminate flooring in my listening room and so have to sit them on either pieces of granite or little wooden platforms . I was contemplating fitting rubber feet instead of the spikes and putting them on the floor . Anyone have any experience in changing from spikes to another type of feet for speakers ? If so what are you using ?