Detail 01
Open backbore
Supports the 1AL’s open sound across all registers.

Independent shopping perspective
The gold Heritage Series 1AL is a large-shank trombone mouthpiece with a 27.11 mm cup, 6.09 mm rim and 7.45 mm throat. Its open backbore is voiced for an open sound throughout the range, with rich, dark tone and a defined amount of resistance. Heritage-series mass is concentrated around the throat and backbore, while thinner upper walls are used to preserve response at softer dynamics and help upper-register articulation.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Supports the 1AL’s open sound across all registers.
Detail 02
Identifies the cup size of the 1AL model.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
The 1AL has a large shank.
It is described as open across the registers, with a rich, dark tone.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.