Here are some pics of the dual 8" servo sub speaker stands for the NX-Studio Monitor. what I was after was recessed drivers and a stand height that when combined with 2" isolation footers under the stands (here I'm using Gaia IIIs) and isolation seperators between the stand and Studio Monitor (here using Isoacoustics Orea Bronze pucks which are 1" thick) the center of the tweeter would be 39" from the floor as this is ear height for me on my couch. With the GAIA IIIs and Oreas, the center of the tweeter came in at 38.5" without an amp in the stands. The height can be increased to move the tweeter center up higher but there isn't any room to make the stands shorter.
These stands are stout. The side panels and top are 1.5" thick BB, the base is 2.25" thick BB, and the front panel is 3/4" thick BB across the interior opening. The inside is lined with No-Rez.
While not exactly a floorstander, these sub stands accomplish the goal in fine fashion.
These will be playing at LSAF in Dallas June 7-9. If you are in the area, drop in and have a listen.
Mike