John Foster prop65 C – Our classic trombone

C – Our classic trombone rim

Prior to joining Boston Brass

Featuring a traditional alto horn rim shape that is more similar to a trumpet rim profile

and the gentleness of playing a ballad

William is excited to be the newest member of Boston Brass

John Foster prop65 C – Our classic tromboneWith an open backbore, coupled to a #23 throat, the Foster baroque trumpet mouthpiece offers both a full sound with the proper resistance and slotting to facilitate a great baroque trumpet feel. The traditional round cup with a tight turn to the throat provides exceptional slotting and accuracy. The round rim promotes comfort and offers familiarity for ease in playing. Shank size is 0. 388" for modern receivers. Email us for custom shank sizes for