Starting this week, the Reference and Statement Series of Grado cartridges are completely new, inside and out. The wood chassis was redesigned to optimize mass distribution for enhanced stability and imaging. The coils and rare-earth magnets were re-engineered for improved output and better dynamic range. There is an overall improvement of signal transfer for retrieval of low level information and transparency. The stylus generator ring, already the lowest moving mass in the world of phono cartridges, was even further optimized.