Yamaha brass mouthpieces are produced with advanced computer design and manufacturing technology for unmatched precision, smooth attack, and easy playability.

Available models:

• 48L   Well-balanced rim and cup with a fairly narrow backbore. Similar to a Bach 6-1/2AL or a Denis Wick 6BL. Inner Diameter = 25.25mm. Contour = standard. Thickness = standard. Cut Depth = standard. Throat = 6.62mm. Backbone = semi-narrow.
• 48L Gold plated.
• 48S   Short shank. This Yamaha mouthpiece for trombone 48S has a cup inner diameter of 25mm and is silver plated (small shank).
• 48S Gold plated.
  
• 48A   The 48 rim combined with a very shallow cup. For alto trombones. Bright tone with good volume. Similar to a Bach 6-1/2 rim, but with a shallower cup. Inner Diameter = 25.25mm. Contour = standard. Thickness = standard. Cut Depth = shallow. Throat = 5.32mm. Backbone = semi-narrow.
• 48D   Same rim as the 48 with a relatively deep cup. Rich low register with a soft tone. Similar to a Bach 6-1/2AL rim, but with a deeper cup. Inner Diameter = 25.25mm. Contour = standard. Thickness = standard. Cut Depth = semi-deep. Throat = 6.62mm. Backbone = semi-narrow.