Yamaha's Standard Series mouthpieces are produced with the most advanced computer design and manufacturing technology. These quality brass mouthpieces are crafted for unmatched precision, smooth attack, secure control, and easy playability. They have an ideal weight for all-around use are available in a variety of configurations to suit every player. Tuba Mouthpiece Model Rim Cup Depth Throat Backbore Playing Charateristics Inner Diameter Contour Thickness 6430.45standardthickstandard8.35standard Small inner rim diameter with a medium cup. An ideal beginner's model for young players. Well-balanced rim configuration for flexibility and easy playability. 6530.95standardsemi-thinstandard8.35semi-wideRelatively small inner rim diameter and medium cup volume for easy playability. Excellent balance throughout the instrument's range, with a fairly dark tone. 66B31.37standardstandardsemi-shallow8.35semi-wide Shallower cup than the 66. Outstanding playability and flexibility. Fairly bright tone and easy response over a wide range. 6631.37standardstandardstandard8.35standardVoluminous cup. Fairly dark tone with plenty of power. Excellent resonance and clarity. Popular in ensembles and orchestras. 66D431.49semi-flatsemi-thicksemi-deep8.87semi-wideExcellent matching with Eb brass band instruments. Very deep cup. Dark tone with plenty of volume. Symphonic sound....

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