This true-performance, cost-effective design, provides extensive system configuration flexibility and infinite modularity at a lower price point than any of our HRS Audio Stands. “The EXR is a very innovative, high-performance audio stand system design with unprecedented performance value, modularity, customization (size and configuration), and upgrade options. You can even convert from an EXR Audio Stand System to a SXR, SXR Signature, or SXRC Audio Stand model in the future while preserving a majority of original system purchase price.”