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.

Empty Space Model Cup Depth Approx Cup Dia.  Rim Shape

3

Medium 17.60 mm Narrow 7
Medium 17.25 mm Narrow 7S Medium 17.25 mm
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10 Deep 16.8 mm Medium wide 10S Deep 16.8 mm Medium wide
11 Medium 16.55 mm Medium wide 12 Medium  16.5 mm Narrow
15 Medium 16.3 mm Narrow 16 Deep 16.25 mm Medium wide 18 Medium 16.15 mm Narrow