Bach mouthpieces are designed to meet every conceivable playing need and have for nearly three quarters of a century. A Bach mouthpiece can make a good instrument play better. Volume and excellent intonation; ease of response in the high and low register; rich, uniform timbre throughout the range; resistance calculated to increase the player's endurance - these characteristics explain why the best professional artists choose Bach.

• Medium deep cup depth
• 25.40 mm cup diameter
• Medium wide, well-rounded rim
• Requires a well-developed embouchure
• Features fine Bach craftsmanship. The same cup, throat, and backbore as No. 6 1/2AL small shank tenor trombone but with Deepa bass shank softer outer edge, quick respons
• Model No. / Depth of Cup / Approx. Cup Dia. / Rim Shape / Throat / Backbore / Description 1G / Deep / 28.00 mm
• Among the largest and most powerful bass trombone mouthpieces produced today. 1-1/4G / Deep / 27.50 mm / Medium thin, well rounded.
• 0.276" / 429 / Cup diameter is smaller than No.1G, but still very large and deep, with the sonority preferred by the modern American school. 1 - 1/4