Hi Guy. Well, you know what the old Quads ("57's") look like, right? Electrostatic panels 29" tall by about 34" wide, and varying in depth from a couple of inches at the top to about eight inches at the bottom. To stack them, people usually have the bottom pair near the floor and the top pair centered at ear level (that's how Mark Levinson made the stands for his HQD, acronym for Hartley-subs/Quad-mids/Decca-ribbon tweeters). I, instead, mounted the bottom pair at ear level and the top pair at standing ear level (I don't like looking down at the image, and often get up to dance or, uh, play air guitar). The stands are mounted on the sides of the Quads, one 3-layer MDF panel (2.25") six inches deep/wide on each side of each speaker until reaching about five inches above the floor, where the MDF makes a right angle front and back to form the two foot deep (or wide, if you're looking from the side) feet/legs. The panels (four, one on each side of left and right pairs) are all separate, with a 3/4" thick/six inch deep MDF brace below, between, and above the two speakers on each side, dado'd into the side panels, bolts passing through small holes in the side panels and into the braces, and the side of each Quad bolted onto each side panel. Once they are assembled, they CANNOT be moved, spikes or no spikes!