A precise rim and fairly large cup. The tone is warm and full. Megatone mouthpieces have the same rim, cup and backbore as non-Megatone models, but have additional mass which allows the mouthpiece to produce a darker, more focused sound. The throat on Megatone models is slightly larger to open up the feel and response and to allow more flexibility. • 16.25mm cup diameter • Medium cup • Medium-wide rim, lowered toward the outside with a medium-sharp edge.