Vinsælasta byrjendahljóðfærið. JUPITER is proud to introduce the successor to the popular and well-known JAS500 Eb Alto Saxophone. The JAS510 incorporates the new JUPITER key structure design features introduced with the 1100 series Colours of Sound Alto Saxophones. The position of individual buttons were adjusted, key's angles changed and the heights and lengths of the levers were optimised, so that players benefit from the most advanced ergonomic keywork that facilitates enjoyable playing experiences and avoids stress and fatigue.