The Isis Rack features bottom "Cone Foot Terminators" made of solid aircraft aluminum for optimal interface to any floor. The leveling spikes are reversible; one side is flat, for optimal coupling to flat surfaces or Symposium Point Pods, and the other is sharpened for use on carpeted areas. We chose not to use stainless steel points for rack leveling spikes in the Isis, since we have found that they are bettered sonically at this critical interface point by "faster" metals.

Here, at the interface between rack structure and the floor (the mechanical "ground" connection), either aluminum or copper will give better sonic results with more than adequate strength and hardness because of the superior transmission characteristics of these metals. While aircraft aluminum spikes are standard, shown here are the optional Tellurium copper reversible leveling spikes. Included in our premium package (or as an upgrade with any Isis), Tellurium copper has even better transmission speed than aluminum (the only metal with more efficient energy transmission than aluminum and copper is silver).