Yamaha TP-8300R TimpaniThe top of the line timpani series features cambered hammered copper bowls and the pedal balance spring system. The cambered bowls deliver ample volume as well as optimum resonance and decay. Bowl Design The hammered bowls in this series feature a squarer cambered profile than conventional bowl designs. The most obvious benefits are ample volume, ideal timpani decay, and significantly improved mallet response. The most desirable qualities of copper