BOB REEVES Trumpet Mouthpiece 40/S/69

BOB REEVES Trumpet Mouthpiece 40/S/69, Inner Diameter: 15,875mm, semi-flat with a medium-sharp bite, shallow bowl shaped cup. The 40 rim is functionally similar to Bach Mount Vernon 10 1/2C, Bach 11 3/4 C, 17, and Schilke 6 rims. The 69 Backbore is good for big band playing, the 69 backbore records well with a bright, focused sound. This is very popular on our shallower cups (S and shallower). Good if you like to power the upper register. It was named because Bob developed it in 1969.