New York Bach 2C Trumpet Mouthpiece - Boyde Hood CollectionBach New York 2C Trumpet Mouthpiece From the Boyde Hood Collection A vintage Bach New York 2C trumpet mouthpiece from the Boyde Hood Collection, offered in excellent condition for its age. The 2C is one of Bachs larger trumpet mouthpiece designs, with a 16. 50 mm diameter and a medium C cup. It offers a broad, clear sound with more room than the smaller standard Bach sizes, while still retaining the brilliance and focus associated with the classic C