C Cups

The C Series uses the GR Symphonic Blank, GR Standard Rims, and GR #3 Backbore.

The C has a more open throat entrance than the C* and C**, furthermore, it requires a strong player. 

The C design features a higher alpha angle (similar to M cup), a larger cup volume, very open throat entrance, and huge orchestral sound.  The design allows for added lip support and efficient playing characteristics. 

The C is a very powerful mouthpiece that has a great volume of sound, good articulation, and excellent projection.  The C is the preferred choice for the orchestra, as well as, for very powerful players requiring a more efficient alpha angle. 

All the C Series (C*, C**, and C) have the same rim, alpha angle, L1, and 1^st cup radius (R1) to provide easy accommodation when switching between Bb, C, and D/Eb, as well as, accommodating other playing requirements.