Bach Mega Tone Trumpet Mouthpiece - Catalog# K351, Model# 5C Bach has set the standard for brass instrument mouthpieces for generations, with dimensions that have left an indelible mark on classical, student, and all-purpose designs. For players with a strong embouchure who do not like a sharp edge. The tone is lively and rich. The larger outside mass darkens the sound and allows you to play at higher dynamic levels without distorting. Mega Tone slots extremely well so pitches center dependably. A slightly larger throat affords less resistance and greater flexibility. The result is a warmer, more powerful sound that's perfect in the concert hall, and adds a new dimension to pop and jazz playing.