Since 1925, Keilwerth has concerned itself with creating saxophones that allow the musician to shape his own sound and style. With this in mind, Keilwerth took the technical advantages and improvements of the SX90, and added some extra features to truly make the musician's instrument his own. The result was the SX90R (the R standing for tone hole rings), a saxophone reminiscent of the old Conn and Buescher saxophones of the 1940s.

The SX90R Shadow saxophone pushes the limits of design and performance. The body is made of German nickel-silver that resonates strongly and responds quickly to the players demands. Black nickel plating coats the body adding depth to the well centered and powerful sound. The inner bell and key work are silver plated to highlight the extensive hand engraving for a vibrant and dazzling appearance. From the small, intimate club to a concert arena for thousands of fans, the SX90R Shadow saxophone lets the player take control and offers limitless potential for expression and sound.