As stated, good stands are going to work better than stacking on the subs. But if you want to try it, look into a product called Microsorb, sold by percyaudio.com. It is a sticky acrylic damping sheet that will not only hold the speakers very effectively, but will also absorb a lot of excess cabinet vibrations.
Using subs as speaker stands ?
I own the tyler ref monitors, I am thinking of buying 2 tyler taylo base moduals, I am cramped for space,would it work if I placed the monitors directly on ths subs using rubber isolation pads between the monitor and the sub, has anyone tried this ? thanks all