Features Thermo Aged Solid Top and Spruce X Bracing Thermo Aged Solid top w/Thermo Aged Spruce X bracing delivers ample volume and an enormous frequency range. Bone nut and saddle A bone nut and saddle provide optimal transference of the natural string vibration. Ibanez Advantage bridge pins These pins really are an advantage over oldfashioned pins. Advantage pins are easier to take out and easier to put in than standard pins. A special bulbshaped end makes the pin easy to grip and also prevents the pin from being pushed in too far. Best of all, with Advantage , the pin and string stay put. (The base line in the graph represents the sound character of NonThermo Aged guitar). Having a Thermo Aged solid back brings further enhancement to the sound along with the Thermo Aged solid top; even more bass, even more treble, and plenty of punch.