USED - Majestic Quantum 4.6 Octave Synthetic Key Field Marimba - EMAIL FOR SHIPPINGEmail mark@arizonaacademy. org for availability and shipping options prior to ordering. Quantum series marimbas feature a newly formulated synthetic bar material for optimal performance in all environments. These bars have unprecedented warmth of tone for a synthetic material and a wood like appearance. Precision tuning methods ensure the highest level of tonal consistency. These instruments feature custom black resonators (not shown here) which give