The Sonor Orff Smart Series ASX1.1-INT Alto Xylophone is a standout instrument designed to elevate performance with enhanced sound quality, developed through extensive acoustical research and innovative resonance chamber designs. This lightweight and portable xylophone makes teaching easier both in and out of the classroom. Its unique bar mounting pin and resonator box design allow for easy stacking, maximizing storage space. Students benefit from improved ergonomics with the integrated riser elevation. Each SMART series instrument features an "accessory garage" built into the resonance box for storing accidental bars and mallets. Every note has its own acoustical chamber within the resonance box, creating a focused tone while reducing unwanted resonance. The shatterproof pins interlock under the bars with a newly designed pin strip, securing the sound bars tightly during transport and intense playing, and allowing easy removal and swapping. The ASX1.1-INT includes 16 FSC Pao Rosa wood bars tuned to a C-major scale with accidentals, precision-tuned to A440, measuring 25" L x 15.25" W x 4.75" H, and weighing 11.75 pounds. It also comes with a pair of SCH 23 mallets.